KR101297658B1 - Lead plate unified fpcb for flat speaker - Google Patents

Abstract

PURPOSE: An FPCB-combined lead plate for a flat speaker is provided to improve productivity, easily configure electrical connection between a voice film and external input and output terminals, and minimize a soldering error rate. CONSTITUTION: An FPCB-combined lead plate for a flat speaker comprises one pair of lead copper foils (24a,24b), one pair of external input and output terminals (25a,25b), and lead wires (23a,23b). The one pair of lead copper foils is patterned and printed in a predetermined area on one end of the lead plate so as to connect with a voice coil plate, is insulated from each other. The one pair of external input and output terminals is patterned and printed in a predetermined area on the other end of the lead plate so as to connect with an external power source and is insulated from each other. The lead wires include conductive patterns (21a,21b) for electrically connecting the one pair of lead copper foils and the one pair of external input and output terminals with each other, respectively.

Description

FPC integrated lead plate for flat panel speaker {LEAD PLATE UNIFIED FPCB FOR FLAT SPEAKER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat speaker, and more particularly, to an FPCB integrated lead plate for a flat speaker manufactured in the form of a flexible printed circuit board (FPCB) for electrical connection with a voice film.

The speaker has a voice coil and a diaphragm interposed between the magnets, and generates a sound by vibrating the diaphragm by the motion of the voice coil.

In the flat panel speaker, magnets are arranged at regular intervals on both sides of the flat voice coil and its sides to generate organic electromotive force according to Flaming's left-hand law and Lorentz's principle, forming a frequency according to voice, and the frequency vibrates the diaphragm Is reproduced.

The voice coil is spirally wound or printed in an elliptical shape on one side or both sides of a plate-shaped coil base to form a voice coil plate.

The vibration plate is attached to the upper end of the voice coil plate in the longitudinal direction, and the vibration plate vibrates according to the movement of the voice coil plate to generate sound.

Conventional flat speakers are electrically connected to each other by soldering lead wires between both terminals (+ and − terminals) of the voice film and external input / output terminals in order to apply power to the voice film.

However, the soldering work by the lead wire has a problem of difficulty in soldering work due to the fluidity of the lead wire, a high defect rate of the soldering part of the lead wire, and the increase of the airborne time due to the soldering work, which leads to a problem of low productivity.

SUMMARY OF THE INVENTION An object of the present invention for solving the above-described problems is to improve the productivity, to facilitate the electrical connection between the voice film and the external input and output terminals, and to provide a flat plate speaker FPCB integrated lead plate to minimize the solder failure rate To provide.

In addition, by fabricating the external input and output terminals and the lead plate integrally using the FPCB to provide a FPCB integrated lead plate that can reduce the cost by forming a separate external input and output terminals.

The FPCB integrated lead plate for a flat panel speaker according to the present invention for solving the above problems is pattern printed on a flexible insulating substrate with a conductive material, and at one end, the pattern printed with a predetermined area to be connected to the voice coil plate and insulated from each other. A pair of lead copper foils, a pair of external input / output terminals pattern-printed and insulated from each other at a predetermined area so as to be connected to an external power source, and the pair of lead copper foils and a pair of external input / output terminals are electrically connected to each other. It comprises a lead wire made of a conductor pattern to be connected by.

Here, a pair of coil copper foils electrically connected to the both ends of the coil pattern-printed on the voice coil plate is formed, and the pair of coil copper foils are implemented to face-to-face contact with the pair of lead copper foils perpendicularly to each other. It is desirable for the convenience of soldering for electrical connection between copper foils.

Here, both ends of the pattern-coiled coil may be formed on both sides of the same position with respect to the voice coil plate, respectively.

Here, one end of the pattern printed coil is formed at the lower end or the upper side of one side based on the voice coil plate, and the other end of the pattern printed coil is formed at the lower end or the upper side of the other side based on the voice coil plate. Can be.

Here, the FPCB integrated lead plate for the flat panel speaker may be located between the diaphragm and the voice coil plate.

Here, the FPCB integrated lead plate for the flat panel speaker may be located opposite to the portion where the voice coil plate is in contact with the diaphragm.

According to the above-described configuration of the present invention, it is possible to dramatically improve productivity, facilitate the electrical connection between the voice film and the external input / output terminals, minimize the solder failure rate, and manufacture the external input / output terminals and the lead plate in one piece, thereby reducing the cost. It is possible to provide an FPCB integrated lead plate that can bring about savings.

1 is a structural diagram of a flat speaker to which an FPCB integrated lead plate according to a first embodiment of the present invention is applied.
2 is a perspective view of an FPCB integrated lead plate according to a first embodiment of the present invention.
3 is a structural diagram of a flat panel speaker to which an FPCB integrated lead plate according to a second exemplary embodiment of the present invention is applied.
4 is a perspective view of an FPCB integrated lead plate according to a second embodiment of the present invention.
5 is a structural diagram of a flat panel speaker to which an FPCB integrated lead plate according to a third exemplary embodiment of the present invention is applied.
6 is a perspective view of an FPCB integrated lead plate according to a third embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the structure and effect of the FPCB integrated lead plate for a flat panel speaker according to the present invention.

The FPCB integrated lead plate of the present invention refers to an integral part of a lead plate and an external input / output terminal of a flat speaker manufactured in the form of a flexible printed circuit board (FPCB).

The lead plate and the external input / output terminals are divided into + and-terminals, and each same pole is connected to each other, and each of the + and-terminals of the lead plate is connected to the coil terminal of the voice film and the other terminal, respectively.

The FPCB integrated lead plate of the present invention is applied only to an even-layer multi-layer PCB voice film.

That is, in the case of the PCB voice film of one layer, one end is formed at the lower end of the PCB after the coil winding in the track form, and the other end is located at the center of the PCB winding. Here, in the middle part of the PCB winding, it is impossible to make a soldering copper foil that can be connected to the + and-terminals of the lead plate.

Similarly, in the case of the three-layer PCB voice film, one end is formed at the outer end of the first layer, and the second layer is formed in the form of a simple winding, and the other end is formed inside the three-layer winding, so that the PCB voice film and the + and-lead plates are formed. It is impossible to form a copper foil solder to connect the

On the contrary, in the case of the two-layer PCB voice film, the winding of the first layer is formed at both ends after the winding of the second layer through the inner through hole, so that it is possible to form a copper foil for soldering at both ends. The same applies to even-layer multilayer voice coils.

In the following specific embodiments, the structure of the flat panel speaker and the structure of the lead plate will be described with drawings, and the basic frame (outer frame) forming the outside of the flat panel speaker and each component is inserted and seated is omitted.

[First Example  Following FPCB  Integral Lead Plate]

1 is a structural diagram of a flat panel speaker to which an FPCB integrated lead plate according to a first embodiment of the present invention is applied, and FIG. 2 is a perspective view of an FPCB integrated lead plate according to a first embodiment of the present invention.

As shown in FIG. 1, the flat speaker to which the FPCB integrated lead plate according to the present invention is applied is a voice coil plate 16 pattern-printed with a voice coil in the form of a printed circuit pattern (PRINT CIRCUIT BOARD) and a voice. The voice coil of the voice coil plate 16 and the pair of magnetic bodies 14a and 14b spaced at regular intervals on the left and right sides of the coil plate 16 and between the voice coil plate 16 and the vibration plate 15 And a diaphragm 15 electrically connected to an upper portion of the lead plate 17 and connected to the upper portion of the lead plate 17 to transfer vibration energy to the negative. A base frame (not shown) may be further formed.

The magnetic bodies 14a and 14b may be formed in the form of a combination of the magnets 11a and 11b and the yoke or the magnet plates 12a, 12b, 13a, and 13b at the top and bottom of the magnets 11a and 11b. While maintaining the pair, the pair is formed side by side and the voice coil plate 16 is inserted between the formed gaps.

In the flat panel speaker of the present invention, the magnetic coil 17 is disposed at regular intervals on the voice coil plate 16 and both sides thereof, so that when the current flows through the voice coil, an organic electromotive force is generated according to the left law of flaming and the Lorentz principle. The voice coil plate 16 moves up and down by the organic electromotive force.

The lead plate 17 is manufactured in the form of a flexible printed circuit board (FPCB), and is positioned between the voice coil plate 16 and the vibration plate 15 so that one side of the lead plate 17 is both ends of the coil of the voice coil plate 16. And soldered connection, the other side is formed with an external input and output terminal connected to the external power source.

The lead plate 17 can eliminate the existing wire-shaped lead wires and facilitate the soldering operation for connecting the lead wires to the + and-terminals of the voice coil plate 16 and the external input / output terminals. The lead plate and external input / output terminals are formed on the FPCB at the same time, so it is not necessary to form a separate external input / output terminal, resulting in cost reduction effect.

In particular, the lead plate 17 of the present invention can bring about ease of soldering operation to maximize productivity, and the coil ends of the copper foil 20 for the lead formed on one end of the lead plate 17 and the voice coil plate 16 are provided. The copper foil for coils 19 connected to each other are formed in a thin film form having a predetermined area to each other and face to face contact is made in a right angle with each other.

When the solder 18 is performed between the copper foils 19 and 20 on both sides in the state where the surface-to-face contact is made, the coil copper foil and the lead copper foils 19 and 20 are electrically connected to each other. This type of soldering method is to perform soldering only in the area where there is a face-to-face contact, it is possible to improve the productivity and minimize the failure rate compared to soldering a conventional lead wire to the terminal.

Looking at the structure of the lead plate 17 in more detail with reference to Figure 2, the lead plate 17 is soldered to the coil copper foil 19 formed at the coil end of the voice coil plate 16 at one end, +,- Lead copper foils 24a and 24b are formed, and at the other end, external input / output terminals 25a and 25b electrically connected to the lead copper foils 24a and 24b are formed by conductors 21a and 21b.

Conductors 21a and 21b, lead copper foils 24a and 24b, and external input / output terminals 25a and 25b are printed on the insulator by conductive material to form an FPCB, and the conductors patterned on the insulators 22a and 22b ( 21a and 21b serve as lead wires 23a and 23b together with the insulators 22a and 22b.

The lead plate 17 integrally forms the lead wires 23a and 23b and the external input / output terminals 25a and 25b, and is manufactured in an FPCB form in which a conductor is pattern-printed on a flexible insulating board, thereby enabling mass production. It has the advantage of increasing the efficiency of.

[Second Example  Following FPCB  Integral Lead Plate]

3 is a structural diagram of a flat panel speaker to which an FPCB integrated lead plate according to a second embodiment of the present invention is applied, and FIG. 4 is a perspective view of an FPCB integrated lead plate according to a second embodiment of the present invention.

3, the pattern shape of the voice coil formed in the voice coil plate 36 is different from that of the flat speaker of FIG.

That is, the voice coil of the voice coil plate 16 of FIG. 1 is in the form of a spiral winding where both ends of the coil are formed on both sides of the lower right side in the drawing, and the voice coil of the voice coil plate 36 of FIG. It is formed in the lower right side, and the other side is a spiral winding form formed in the lower left side of a back side.

Accordingly, one side of the lead copper foil 44a formed on the lead plate 37 of FIG. 4 is formed long in the form of a tail (long along the voice coil plate) to be soldered by face-to-face contact. .

The remaining components are the same as in the first embodiment.

Referring to FIGS. 3 and 4, the flat panel speaker has a voice coil plate 36 pattern-printed with a voice coil in the form of a track pattern printed with a track shape, and the voice coil plate 36 is fixed to the left and right sides of the voice coil plate 36. A pair of magnetic bodies 34a and 34b spaced apart from each other, and a lead plate 37 that is electrically connected between the voice coil plate 36 and the diaphragm 35 to the voice coil of the voice coil plate 36. And a diaphragm 35 connected to an upper portion of the lead plate 17 to transmit vibration energy to a sound, and further formed of a base frame (not shown) of a synthetic resin material which forms various appearances and can be combined with various components. Can be.

The lead plate 37 is formed at one end with a copper foil 39 for the lead connected to one end of the coil of the voice coil plate 36 and a positive electrode (or -pole) lead copper foil 44b, and a coil connected to the other end of the coil. The lead copper foil 44a of the -pole (or + pole) which is soldered with the copper foil 39 is formed, and the other end is electrically connected to the lead copper foils 44a and 44b by the conductors 41a and 41b. Input and output terminals 45a and 45b are formed.

The conductors 41a and 41b, the lead copper foils 44a and 44b, and the external input / output terminals 45a and 45b are pattern printed on the insulating substrate with conductive material to form an FPCB, and the conductors patterned on the insulators 42a and 42b. 41a and 41b serve as lead wires 43a and 43b together with insulators 42a and 42b.

[Third Example  Following FPCB  Integral Lead Plate]

5 is a structural diagram of a flat panel speaker to which an FPCB integrated lead plate according to a third exemplary embodiment of the present invention is applied, and FIG. 6 is a perspective view of an FPCB integrated lead plate according to a third exemplary embodiment of the present invention.

5, the pattern shape of the voice coil formed in the voice coil plate 56 is different from that of the flat speaker of FIG.

That is, the voice coil of the voice coil plate 16 of FIG. 1 is a vortex winding form in which both ends of the coil are formed on both sides of the lower right side in the drawing, and both ends of the coil are formed in the portion in contact with the diaphragm 15, and the voice coil plate 56 of FIG. The voice coil of) is a vortex winding form in which both ends of the coil are formed on both sides of the lower right side of the drawing, and both ends of the coil are formed on the opposite side of the portion where the vibration plate 55 abuts.

Accordingly, the lead plate 57 shown in FIGS. 5 and 6 has the same structure as that of the lead plate 37 shown in FIGS. 1 and 2, except that the case of FIG. The lead plate 17 is interposed between the diaphragm 15 and the voice coil plate 16, and in the case of FIG. 5, only the lead plate 57 is positioned on the upper right side of the voice coil plate 56.

The remaining components are the same as in the first embodiment.

Referring to FIGS. 5 and 6, the flat panel speaker has a voice coil plate 56 pattern-printed with a voice coil in the form of a track pattern printed with a track shape, and the voice coil plate 56 is fixed to the left and right sides of the voice coil plate 56. A pair of magnetic bodies 54a and 54b spaced apart from each other, a lead plate 57 located at the upper right of the voice coil plate 56 and electrically connected to the voice coil of the voice coil plate 56, and the voice. It is made to include a vibration plate 55 is connected to the upper portion of the coil plate 56 to transfer the vibration energy to the negative, and the base frame (not shown) of the synthetic resin material can be further formed to form the appearance and can be combined have.

The structure of the lead plate 57 is almost the same as that of the lead plate 17 of FIG. 2, and the shape of the portion where the lead copper foil is formed is somewhat different, but it may be formed as in the structure of FIG. 2 or as in the structure of FIG. 6. You may form.

Another type of lead plate structure may be considered as follows.

When one end of the voice coil pattern-printed on the voice coil plate is formed on the upper right side in the drawing of FIG. 1, and the other end is formed on the upper left side in the drawing of FIG. 1, the lead plate of FIG. 4 is formed at the position as shown in FIG. 5. The problem to be solved by the present invention can be solved.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

11a, 11b, 31a, 31b, 51a, 51b: magnet
12a, 12b, 13a, 13b, 32a, 32b, 33a, 33b, 52a, 52b, 53a, 53b: York plate
14a, 14b, 34a, 34b, 54a, 54b: magnetic body
15, 35, 55: diaphragm 16, 36, 56: voice coil plate
17, 37, 57: lead plates 18, 38, 58: soldering
19, 20, 39: copper foil for coil
24a, 24b, 44a, 44b, 64a, 64b: copper foil for lead
21a, 21b, 41a, 41b, 61a, 61b: conductor
22a, 22b, 42a, 42b, 62a, 62b: insulator
23a, 23b, 43a, 43b, 63a, 63b: lead wire
25a, 25b, 45a, 45b, 65a, 65b: External I / O Terminal

Claims (6)

The pattern is printed on the flexible insulating substrate with a conductive material,
A pair of lead copper foils pattern-printed on a predetermined area and insulated from each other so as to be connected to the voice coil plate at one end thereof;
A pair of external input / output terminals pattern-printed and insulated from each other at a predetermined area so as to be connected to an external power source;
A lead wire formed of a conductor pattern electrically connecting the pair of lead copper foils and the pair of external input / output terminals to each other,
On both ends of the coil printed on the voice coil plate, a pair of copper foils electrically connected to each other are formed.
And said pair of copper foils for coils are in face-to-face contact with said pair of lead copper foils perpendicularly to each other. delete The method of claim 1,
Both ends of the pattern printed coils are formed on both sides of the same position with respect to the voice coil plate, respectively. The method of claim 1,
One end of the pattern printed coil is formed at the lower end or the upper side of one side based on the voice coil plate, and the other end of the pattern printed coil is formed at the lower end or the upper side of the other side based on the voice coil plate, FPCB integrated lead plate for flat panel speakers. The method of claim 1,
And said FPCB integrated lead plate for flat panel speakers is located between a diaphragm and a voice coil plate. delete

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