KR20040107014A - Lead terminal unity type damper for speaker - Google Patents

Abstract

PURPOSE: A lead terminal integrated damper for speakers is provided to remove a restriction on a position of the lead terminal by forming a lead terminal and a lead wire before manufacturing of the speaker. CONSTITUTION: A lead terminal integrated damper for speakers includes a circular yoke, a magnet, a poll piece on the magnet, a cylindrical frame a voice coil, a resonant plate, a damper, and a cap. The damper includes a first ring(110), a second ring(120), a lead wire fixing leg(130), and a lead terminal(140). The first ring is made of a ring plate type synthetic resin material. The second ring made of the same synthetic resin material has a diameter greater than that of the first ring. The lead wire fixing leg made of the same synthetic resin material has a curved portion on an outer portion of the first ring. The lead wire fixing leg couples inner portions of the second ring in a radial formation, and is symmetrical with a center line as a reference. The lead terminal has a rectangular shape and is formed to be exposed horizontally. A terminal lug is coupled with an upper surface of the lead terminal.

Description

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

The present invention relates to a loudspeaker, and in detail, a damper is manufactured so that the lead wire can be fixed in a horizontal form, and a lead terminal to which the lead wire and the lead lug are fixed to the damper is formed to fix the lead wire to the damper. The present invention relates to a speaker lead integrated damper for connecting lead wires to lead lugs to integrate them.

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 connected to the frame 4 and the diaphragm 6 and the damper ( 7) and a cap 8 adhered to an 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 T baby voice coil 5 is connected, which leads through the diaphragm 6 along the bobbin side of the voice coil 5 to the bottom of the frame 4. And the terminal plate 9 formed on the bottom surface of the frame 4 directly from the bobbin side of the voice coil 5, and after processing the lead wire into a planar shape, the damper 7 ), And then the damper 7 of the bone shape is formed by thermoforming, the inner and outer diameters are punched to complete the damper 7 and the lead wire, and then the lead wire is connected 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.

Thus, as shown in FIGS. 2 and 3, a lead wire integrated damper for a speaker has been developed to solve the above problems.

Hereinafter, the configuration and operation of the speaker lead terminal integrated damper according to the present invention will be described in detail with reference to FIGS. In FIG. 3, 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.

The speaker lead wire integrated damper 20 as described above is composed of a first ring 21, a second ring 22, and a lead wire fixing leg 23.

The first ring 21 is formed of a synthetic resin material in the form of a ring plate.

The second ring 22 is formed of the same synthetic resin material as the first ring 21, and is formed larger in diameter than the first ring 21.

The lead wire fixing leg 23 is formed of the same synthetic resin material as the first ring 21, has a bend at the outside of the first ring 21, and radially connects the inner surface of the second ring 22 to a center line. Based on the two sides to maintain the shape (butterfly shape) corresponding to each other. Here, the first ring 21, the second ring 22, and the lead wire fixing leg 23 are integrally injection molded, and the lead wire 10 may be inserted therein and molded.

Here, the first ring 21, the second ring 22, and the lead wire fixing leg 23 may have the lead wire fixing groove 21-1 so that the storage of the lead wire 10 can be secured as shown in FIG. 2. And a departure preventing protrusion 21-2 for preventing the lead wire 10 from being separated from the side surface of the fixing groove 21-1. In addition, the lead wire 10 may be fixed to the upper surface of the damper 20 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 20 having the lead wire 10 fixed therein is inserted into the first ring 21 so that the voice coil 5 can move up and down, and the second ring 22 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 20 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. The problem caused by the difference in weight of the diaphragm 6 due to the non-bonding is eliminated, and the lead wire 10 eliminates the interference during the vibration of the voice coil 5 and completely fixes the lead wire 10 to the damper 100. Therefore, it is possible to prevent the interference sound between the two.

However, since the conventional wire lead integrated damper for speaker is connected after the speaker is assembled, there are many difficulties in design change due to restrictions on the position of the lead terminal, the shape of the frame, and the like, so that the wiring work can be performed. There is a problem that is limited to improvement.

Also, due to the loudspeaker's construction, the lead terminals must be outside the damper's outer diameter. In order to connect the speaker to the cabinet, the position of the lead terminal must be located inside the cabinet joining hole of the frame.If the lead terminal is located outside the cabinet joining hole, the lead terminal is caught in the cabinet and is impossible to work. Since the deformation of the lead terminal occurs, the position of the lead terminal should be located inside the cabinet coupling hole, and the result should be smaller than the damper outer diameter or the position of the lead terminal. Therefore, there is a problem in that there is a limit in improving performance.

Therefore, an object of the present invention is to solve the above problems, by eliminating the wiring work process when assembling the speaker by the lead terminal and the lead wire before the assembly of the speaker to limit the position of the lead terminal, the shape of the frame, etc. It is to improve the speaker performance by making design changes easy.

Another object of the present invention is to form the position of the lead terminal integrally with the damper to expand the outer diameter of the damper to the position of the existing lead terminal, and there is no restriction in the position setting of the lead terminal so that various changes of the structure of the speaker This is to improve the performance of the speaker.

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

Figure 2 is a perspective view showing a conventional configuration of a speaker integrated lead wire damper

3 is a cross-sectional view showing a configuration of a speaker to which a damper is conventionally applied.

Figure 4 is a perspective view showing the configuration of the lead terminal integrated damper for a speaker according to the present invention

5 is a cross-sectional view showing the configuration of a speaker to which the integrated speaker terminal integrated damper according to the present invention is applied.

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

4: frame 5: voice coil

6: diaphragm 9: terminal board

10: lead wire 20, 100: damper

21, 110: first ring 22, 120: second ring

23, 130: lead wire fixing leg 21-1, 101: lead wire fixing groove

21-2, 102: release preventing protrusion 140: lead terminal

141: lead lugs

Features of the present invention for achieving the above object,

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

The damper is,

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. With fixed legs,

It characterized in that it comprises a lead terminal having a rectangular shape integrally with the outer peripheral surface of the second ring, protruding outwardly horizontally, the terminal lug is coupled so that the lead wire is fixed on the upper surface.

Here, the lead terminal,

The terminal lug may be directly installed on the second ring, or may be formed in a rectangular shape integrally with the inner peripheral surface of the second ring, protrude horizontally inward, and may be formed by coupling the terminal lugs.

Here also the terminal lug,

When the damper is molded, it is integrally inserted and fixed.

Here again the lead terminal,

It is formed to have a step lower than the height of the second ring so that the height of the lead wire and the damper is the same when the terminal of the lead wire is coupled.

Hereinafter, the configuration and operation of the speaker lead terminal integrated damper according to the present invention will be described in detail with reference to FIGS. 4 and 5. In FIG. 5, 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.

Figure 4 is a perspective view showing the configuration of a speaker integrated lead terminal damper according to the present invention, Figure 5 is a cross-sectional view showing the configuration of a speaker to which the damper according to the present invention is applied.

4 and 5, the speaker lead terminal integrated damper 100 according to the present invention includes a first ring 110, a second ring 120, a lead wire fixing leg 130, and a lead terminal ( 140).

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 may be molded by inserting the lead wire 10 therein at the time of injection. Here, also in the first ring 110, the second ring 120 and the lead wire fixing leg 130 to create a lead wire fixing groove 101 to enable the storage of the lead wire 10 as shown in FIG. 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.

The lead terminal 140 has a rectangular shape integrally with the outer circumferential surface of the second ring 120, protrudes horizontally to the outside, and the terminal lugs 141 are coupled to the lead wire 10 so that the lead wire 10 can be fixed on the upper surface. Here, the lead terminal 140 is formed by installing a terminal lug 141 directly on the second ring 120 or has a square shape integrally with the inner circumferential surface of the second ring 120, and protrudes inwardly horizontally. The terminal lugs 141 may be coupled to each other. Here, the lead terminal 140 also has a step lower than the height of the second ring 120 so that when the lead wire 10 is coupled with the lead terminal 140, the height of the lead wire 10 and the damper 100 is the same. It is formed to. Here, the terminal lug 141 of the lead terminal 140 is integrally inserted and fixed when the damper 100 is molded.

On the other hand, the damper 100 is soldered to the lead lug 141 exposed on the upper end of the lead terminal 140 in the state in which the lead wire 10 is fixed to the lead wire fixing groove 101 through the release preventing protrusion 103. Secure through.

Then, the voice coil 5 is inserted in the inside of the first ring 110 of the damper to which the lead wire 10 is fixed to the lead terminal 140 to move up and down, and the second ring 120 is connected to the frame 4. Fixed).

If a lead terminal is formed in the flat damper and the speaker is assembled in a state where the lead wire is fixed thereto, the manufacturing cost decreases accordingly because the process of soldering the lead wire to the lead terminal formed in the frame disappears in the conventional bonding process of the speaker. Effects such as increase in production efficiency occur, and the design of the speaker can be easily changed by integrally forming the damper and the lead terminal.

As described above, according to the speaker lead terminal integrated damper according to the present invention, the lead terminal and the lead wire are made before the speaker is assembled, thereby eliminating the wiring work process when assembling the speaker, such as the position of the lead terminal and the shape of the frame. It is possible to improve the speaker's performance by making the design easy to change without restriction, and also the position of the lead terminal can be formed integrally with the damper to expand the outer diameter of the damper to the position of the existing lead terminal, and the position of the lead terminal There are no restrictions on the settings, so that the speaker's various structures can be changed to improve the speaker's performance.

Claims (4)

A circular yoke bent to form a space portion at a central portion thereof, and a magnet attached to a bottom surface of the space portion of the yoke; A voice coil comprising a pole piece attached to an upper surface of the magnet, a cylindrical frame coupled to the yoke, a winding part and a bobbin positioned in a space between the yoke and the pole piece, and formed on an upper portion of the voice coil. In one end of the bobbin is bonded to the outer surface of the bobbin by the adhesive at the same time the other end of the speaker comprising a diaphragm and a damper coupled to the frame, and a cap attached to the top of the voice coil, The damper is, 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. With fixed legs, A speaker terminal integrated type comprising: a lead terminal having a square shape integrally with the outer circumferential surface of the second ring, protruding outwardly horizontally, and having a terminal lug coupled to allow the lead wire to be fixed on an upper surface thereof; Damper. The method of claim 1, The lead terminal, The terminal lug may be formed directly on the second ring, or may have a square shape integrally with the inner circumferential surface of the second ring, protrude horizontally inward, and may be formed by combining the terminal lugs. Lead terminal integrated damper for speakers. The method according to claim 1 or 2, The terminal lug, Lead terminal integrated damper for a speaker, characterized in that the insert is fixed when the damper is integrally molded. The method according to claim 1 or 2, The lead terminal, And a lead terminal integrated damper for a speaker having a step lower than the height of the second ring so that the height of the lead wire and the damper is the same when the terminal of the lead wire is coupled.