KR20040079038A - Lead unity type damper for speaker - Google Patents

Abstract

PURPOSE: A lead unity type damper for use in a speaker is provided, in which a lead wire is prevented from being detached from a voice coil and a vibration plate during the vibration, so preventing the generation of the interference sound. CONSTITUTION: A lead unity type damper(100) for use in a speaker includes a first ring(110), a second ring(120) and a lead supporting leg(130), wherein the speaker is provided with a yoke, a frame, a winding unit, a voice coil, a vibrational plate and a cap. The first ring(110) is made of a plastic in the form of ring. The second ring(120) is made of the same plastic of the first ring(110) with a diameter larger than that of the first ring(110). And, the lead supporting leg(130) is made of the same plastic of the first ring(110), is connected to the inside surface of the second ring(120) in the form of radial and maintains the shape symmetric with to the central line.

Description

Lead wire integrated damper for speaker {LEAD UNITY TYPE DAMPER FOR SPEAKER}

The present invention relates to a speaker, and more particularly, to a speaker having a horizontal shape and a damper for fixing a lead wire, and to a speaker wire integrated damper for fixing and integrating the lead wire.

In general, when a magnetic field is generated from a magnet and a magnetic loop is formed through a pole piece and a yoke, and a current flows through a voice coil placed in a magnetic circuit gap, the voice coil vibrates due to the interaction between the current and the magnetic field. In accordance with the vibration, the diaphragm coupled to the voice coil (aka 'conji') generates an acoustic signal and emits sound.

As shown in FIG. 1, the speaker includes a circular yoke 1 that is bent to form a space portion at a central portion thereof, a magnet 2 attached to a bottom surface of the space portion of the yoke 1, and the magnet 2. A pole piece 3 attached to an upper surface of the rod, a cylindrical frame 4 coupled to the yoke 1, and a winding portion and bobbin positioned in a space portion between the yoke 1 and the pole piece 3 One end is bonded to the voice coil 5 and the outer surface of the bobbin formed on the upper part of the voice coil 5 by an adhesive, and the other end is a diaphragm 6 and a damper coupled to the frame 4. 7) and the cap 8 adhered to the upper end of the voice coil 5. Here, the yoke 1, the magnet 2, and the pole piece 3 are collectively referred to as a magnetic circuit. Here also a lead wire (not shown) for supplying an acoustic signal to the voice coil 5 is connected, which lead wire is formed on the bottom of the frame 4 via the diaphragm 6 along the bobbin side of the voice coil 5. A method of connecting to the terminal plate 9, a method of connecting to a terminal plate 9 formed on the bottom surface of the frame 4 directly from the bobbin side of the voice coil 5, and processing the lead wire in a planar shape to the damper 7 After the fixing, there is a method of forming a damper 7 having a bone shape by thermoforming, punching the inner diameter and the outer diameter to complete the damper 7 and the lead wire, and then connecting the lead wire to the terminal plate 9.

Referring to the operation of a conventional speaker having the above configuration, first, the magnetic field generated from the magnet 2 passes through the magnetic circuit gap, which is a space portion between the yoke 1 and the magnetic field, through the pole piece 3 and passes through the yoke 1. When the current flows to the voice coil 5 placed in the magnetic circuit gap and a driving force is generated and transmitted to the diaphragm 6 and the damper 7, the diaphragm 6 and the damper 7 are the voice coil 5 Vibration corresponds to the driving force of), and the vibration of the diaphragm 6 and the damper 7 eventually generates an acoustic signal to generate sound waves.

However, in the conventional method of connecting the lead wire of the speaker, the first method of connecting the diaphragm may cause damage to the diaphragm when soldering the lead wire. If the lead wire is short, the lead wire may be pulled out and the soldering part may fall because the wire part may not vibrate and the connecting portion between the lead wire and the voice coil vibrates.

Secondly, in the method of connecting directly from the side of the voice coil, since the connection part is positioned on the voice coil, the connection part where the thin voice coil and the relatively thick lead wire are coupled during vibration falls, and the voice coil is changed according to the length of the lead wire. There is a problem of disturbing the vibration.

Thirdly, the method of connecting the lead wires and the damper integrally is carried out before the damper molding. Therefore, the lead wires are cut together with the damper punching. Therefore, a separate relay line must be used to connect the terminal board and the voice coil. In the process of connecting the relay line, a lot of defects occur, and the cost of work increases due to the increase in the number of working hours, and there is a problem in that interference noise is generated between the two because the lead wire is fixed to the damper.

Therefore, an object of the present invention is to solve the above problems, by fixing the lead wire freely set to the damper directly without any additional processing, no additional relay wire is required when combining with the voice coil and the terminal plate, the voice coil and It prevents falling from the diaphragm and improves the reliability of the coupling between the damper and the lead wire, thereby preventing interference from occurring.

1 is a cross-sectional view showing the configuration of a conventional speaker

2 is a cross-sectional view showing the configuration of a speaker to which the damper according to the present invention is applied;

Figure 3 is a perspective view showing the configuration of a speaker integrated wire integrated damper according to an embodiment of the present invention

Figure 4 is a perspective view showing the configuration of a speaker integrated wire integrated damper according to an embodiment of the present invention

<Description of the symbols for the main parts of the drawings>

4: frame 5: voice coil

6: diaphragm 9: terminal board

10: lead wire 100: damper

101: lead wire fixing groove 102: separation prevention projection

110: first ring 120: second ring

130: lead wire fixing leg

Features of the present invention for achieving the above object,

A circular yoke that is bent to form a space portion at a central portion thereof, a magnet attached to a bottom surface of the space portion of the yoke 1, a pole piece attached to an upper surface of the magnet, a cylindrical frame coupled to the yoke, and A voice coil composed of a winding portion and a bobbin positioned in the space between the yoke and the pole piece, and one end of each of which is bonded to the outer surface of the bobbin formed on the upper part of the voice coil by an adhesive and the other end of the diaphragm coupled to the frame. In the speaker comprising a cap attached to the top of the voice coil,

A first ring formed of a synthetic resin material in the form of a ring plate,

A second ring formed of the same synthetic resin material as the first ring and having a larger diameter than the first ring;

The lead wire is formed of the same synthetic resin material as the first ring and has a bend at the outside of the first ring and radially connects the inner surface of the second ring, and maintains a shape corresponding to each other based on a center line. It characterized in that it comprises a damper consisting of a fixed leg.

Here, the first ring, the second ring and the lead wire fixing leg,

It is injection molded in one piece.

Here, also in the case of injection molding the first ring, the second ring and the lead wire fixing leg, the lead wires are inserted into them and molded.

Here, the first ring, the second ring and the lead wire fixing leg,

Lead wire fixing grooves are formed to enable the storage of the lead wires,

The side surface of the fixing groove is provided with a departure preventing projection for preventing the separation of the lead wire.

Hereinafter, the configuration and operation of the speaker wire integrated damper according to the present invention will be described in detail with reference to FIGS. 2 to 4. In FIG. 2, the same parts as those of the speaker shown in FIG. 1 are given the same reference numerals as in FIG. 1, and description thereof will be omitted.

2 is a cross-sectional view showing the configuration of a speaker to which the damper is applied according to the present invention, Figure 3 is a perspective view showing the configuration of a speaker integrated wire damper according to an embodiment of the present invention, Figure 4 is an embodiment of the present invention Fig. 1 is a perspective view showing the configuration of a speaker integrated wire damper according to the present invention.

2 to 4, the speaker wire integrated damper 100 according to the present invention includes a first ring 110, a second ring 120, and a lead wire fixing leg 130.

The first ring 110 is formed of a synthetic resin material in the form of a ring plate.

The second ring 120 is formed of the same synthetic resin material as the first ring 110, the diameter is larger than the first ring 110.

The lead wire fixing leg 130 is formed of the same synthetic resin material as the first ring 110, has a bend at the outside of the first ring 110, and radially connects the inner surface of the second ring 120 to the center line. Based on the two sides to maintain the shape (butterfly shape) corresponding to each other. Here, the first ring 110, the second ring 120, and the lead wire fixing leg 130 are integrally injection molded, and as shown in FIG. 4, the lead wire 10 is inserted into them to be molded. It may be.

Here, the first ring 110, the second ring 120, and the lead wire fixing leg 130 form the lead wire fixing groove 101 to enable the storage of the lead wire 10 as shown in FIG. 3. On the side surface of the fixing groove 101, a separation preventing protrusion 103 may be formed to prevent the lead wire 10 from being separated. In addition, the lead wire 10 may be fixed to the upper surface of the damper 100 by an adhesive or by heat fusion, or a hole (not shown) may be formed to insert and fix the lead wire 10.

Meanwhile, the damper 100 to which the lead wire 10 is fixed is inserted so that the voice coil 5 can move up and down inside the first ring 110, and the second ring 120 is fixed to the frame 4. In this state, both ends of the lead wire 10 are fixed to the voice coil 5 and the terminal plate 9, respectively.

Fixing the flat damper 100 as described above allows the length of the lead wire 10 to be freely adjusted so that the lead wire 10 may fall off with the voice coil 5 or the terminal plate 9, which may occur as a long and short length of the lead wire 10. This can be prevented, and the labor cost is reduced because the separate relay wire connecting the lead wire 10 to the voice coil 5 or the terminal plate 9 is reduced, and the lead wire 10 is connected to the diaphragm 6. Since the problem caused by the difference in weight of the diaphragm () is not bonded, the interference is eliminated during the vibration of the voice coil 5 by the lead wire 10, and the lead wire 10 is completely fixed to the damper 100. It is possible to block the occurrence of the interference sound between the two.

As described above, according to the speaker lead wire integrated damper according to the present invention, the lead wire freely set in length is fixed directly to the damper without additional processing, so that an additional relay line is not required when combining with the voice coil and the terminal plate, and the voice coil is vibrated during vibration. And it prevents the fall of the diaphragm, and the reliability of the coupling of the damper and the lead wire is improved to prevent the occurrence of interference sound in advance.

Claims (4)

A circular yoke that is bent to form a space portion at a central portion thereof, a magnet attached to a bottom surface of the space portion of the yoke 1, a pole piece attached to an upper surface of the magnet, a cylindrical frame coupled to the yoke, and A voice coil composed of a winding portion and a bobbin positioned in the space between the yoke and the pole piece, and one end of each of which is bonded to the outer surface of the bobbin formed on the upper part of the voice coil by an adhesive and the other end of the diaphragm coupled to the frame. In the speaker comprising a cap attached to the top of the voice coil, A first ring formed of a synthetic resin material in the form of a ring plate, A second ring formed of the same synthetic resin material as the first ring and having a larger diameter than the first ring; The lead wire is formed of the same synthetic resin material as the first ring and has a bend at the outside of the first ring and radially connects the inner surface of the second ring, and maintains a shape corresponding to each other based on a center line. A speaker integrated wire damper comprising a damper comprising a fixed leg. The method of claim 1, The first ring, the second ring and the lead wire fixing leg, Speaker lead wire integrated damper, characterized in that the injection molding. The method of claim 2, The lead wire integrated damper for a speaker, wherein the lead wire is inserted into the first ring, the second ring, and the lead wire fixing leg by injection molding. The method of claim 1, The first ring, the second ring and the lead wire fixing leg, Lead wire fixing grooves are formed to enable the storage of the lead wires, Speaker side wire integrated damper, characterized in that provided on the side surface of the fixing groove for preventing the separation of the lead wire to prevent separation.