JP2020129821A - Speaker system - Google Patents

Abstract

To provide a thin speaker system capable of preventing occurrence of abnormal noise caused by contact of a lead wire lead out from a voice coil with a speaker frame or a yoke constituting a magnetic circuit.SOLUTION: In a speaker system, coupling sections 22a, 22b of a frame 2 are respectively coupled with flange sections 33ca, 33cb of a yoke 33 in contact with each other. A lead wire 4a of a voice coil 4 is lead out from the vicinity of an end portion Tb11 of the coupling section 22b, crosses space located between two coupling sections 22a, 22b and between two flange sections 33ca, 33cb and is connected to a terminal 26a located in the vicinity of an end portion Ta12 of the coupling section 22a. A lead wire 4b of the voice coil 4 is lead out from the vicinity of an end portion Ta11 of the coupling section 22a, crosses space located between the two coupling sections 22a, 22b and between the two flange sections 33ca, 33cb and is connected to a terminal 26b located in the vicinity of the end portion Tb12 of the coupling section 22b.SELECTED DRAWING: Figure 2

Description

The present invention relates to a speaker device.

In a general speaker device, a voice coil is oscillatably arranged in a magnetic gap of a magnetic circuit. The lead wire drawn from the voice coil is fixed in a conductive state with a terminal portion provided on the speaker frame (Patent Documents 1 to 4).

JP, 2004-96670, A Japanese Patent No. 48868553 Japanese Patent No. 4233745 Japanese Patent No. 3875150

However, as the speaker device described above becomes thinner, the lead wire drawn from the voice coil may come into contact with a speaker frame or a yoke forming a magnetic circuit to generate abnormal noise, which is an example. Can be mentioned.

The present invention aims to address such a problem as an example of the problem. That is, the present invention has an object to provide, for example, a thin speaker device.

In order to solve the above-mentioned problems, the speaker device according to claim 1 has a voice coil, a frame, and a yoke having two connected parts connected to the frame, and is pulled out from the voice coil. The extended leader line crosses a space located between the ends of the two connected parts.

It is a perspective view showing one embodiment of a speaker device of the present invention. It is a perspective view which shows the state which removed the diaphragm and the edge from the speaker apparatus shown in FIG. It is a front view which shows the state which removed the magnet, the plate, the voice coil, and the coil bobbin from the speaker apparatus shown in FIG. FIG. 2 is a schematic half sectional view taken along line I-I of FIG. 1. (A) is a side view of the yoke shown in FIG. 2, (B) is a sectional view taken along line II-II of (A), and (C) is a sectional view taken along line III-III of (A). FIG. 2 is a rear perspective view showing a state where the speaker device shown in FIG. 1 is attached to a baffle plate. It is a front side perspective view which shows the state which attached the speaker apparatus shown in FIG. 1 to the baffle board.

Hereinafter, a speaker device according to an embodiment of the present invention will be described. A speaker device according to an embodiment of the present invention includes a frame, a yoke connected in the frame, and a voice coil positioned in the yoke, the frame has two connecting portions, and the yoke is The voice coil has a lead-out wire that is drawn out from the vicinity of the end of one of the two connecting portions and that is between the two connecting portions. The end portion on the terminal portion side of the connected portion which is connected to the terminal portion in the vicinity of the end portion of the other connecting portion and crosses the space located between the two connected portions is the other end. Is located closer to the one connecting portion than the end portion of the connecting portion on the terminal portion side.

The lead line of the voice coil is drawn out from the vicinity of one end of one of the two connecting parts, traverses a space located between the two connecting parts and between the two connected parts, and the other connecting part. Since it is connected to the terminal portion near the end portion of the portion, it is possible to suppress the generation of abnormal noise due to the lead wire coming into contact with the yoke and the frame even when the size is reduced. Moreover, since the two connecting parts of the frame and the two connected parts of the yoke are in contact with each other, the yoke is firmly fixed to the frame by being connected at two points. Furthermore, since the end on the terminal side of the connected part that is in contact with the other connecting part is located on the side of one connecting part more than the end on the terminal side of the other connecting part, the lead wire and the yoke are It is possible to suppress the decrease in the magnetic flux density in the magnetic gap without making contact with each other.

Further, even if the lead-out side end of the lead-out wire of the connected portion that is in contact with one of the connecting portions is located closer to the other connecting-portion than the lead-out side end of the lead-out wire of the one connecting portion Good. This makes it possible to further suppress the decrease in the magnetic flux density in the magnetic gap.

Further, the distance between the end on the terminal side of the connected part in contact with the other connecting part and the end on the terminal side of the other connecting part is such that the leader line of the connected part in contact with one connecting part is drawn out. It may be longer than the distance between the end on the part side and the end on the lead-out part side of the lead wire of the one connecting part. Since the terminal portion side of the lead wire is in contact with the terminal portion and its movement is restricted, even if the terminal portion side of the connected portion is lengthened, there is little risk of contact with the lead wire.

Further, a magnetic gap may be formed between the plate and the back surface of the portion of the tubular portion where the flange portion projects. As a result, it is possible to suppress a decrease in the magnetic flux density in the magnetic gap.

In addition, a recess to which a part of the leader line is attached may be provided on the attachment surface of the edge of the frame. Thereby, the movement of the leader line on a part side is restrained by the recess, so that the contact between the leader line and the connected portion can be more reliably suppressed.

An opening may be formed between the two connecting portions of the frame. Thereby, the exhaust pressure of the diaphragm can be reduced, and the diaphragm can easily vibrate.

Further, the voice coil is attached to the diaphragm via a tube, the lead wire is drawn from a part of the voice coil on the diaphragm side, and the lead wire is provided between the diaphragm or the edge and the yoke and the frame. You may pass through the space located at. Since the voice coil is attached to the diaphragm through the tube in this way, the diaphragm side of the voice coil and the diaphragm are separated from each other, and the leader line and the diaphragm do not come into contact with each other.

Hereinafter, the speaker device of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an embodiment of the speaker device of the present invention. FIG. 2 is a perspective view showing a state in which the diaphragm and the edge are removed from the speaker device shown in FIG. FIG. 3 is a front view showing a state in which a magnet, a plate, a voice coil and a coil bobbin are removed from the speaker device shown in FIG. FIG. 4 is a schematic half sectional view taken along the line I-I of FIG. 1. 5(A) is a side view of the yoke shown in FIG. 2, FIG. 5(B) is a sectional view taken along line II-II of FIG. 5(A), and FIG. 5(C) is FIG. 5(A). 3 is a sectional view taken along line III-III of FIG. FIG. 6 is a rear perspective view showing a state in which the speaker device shown in FIG. 1 is attached to a baffle plate. FIG. 7 is a front perspective view showing a state in which the speaker device shown in FIG. 1 is attached to a baffle plate.

As shown in FIG. 3 and the like, the speaker device 1 includes a frame 2, a magnetic circuit 3 supported by the frame 2 and forming a magnetic gap G, a voice coil 4 oscillatably inserted in the magnetic gap G, A cylinder (coil bobbin) 5 around which the voice coil 4 is wound, a diaphragm 6 to which the coil bobbin 5 is fixed, and an edge 7 that supports the diaphragm 6 on the frame 2 are provided.

As shown in FIGS. 1 to 3, the frame 2 is made of a resin such as polyethylene, polypropylene, ABS or the like, and is provided in a generally rectangular shape (generally square shape in the present embodiment) in a front view. The frame 2 is provided in a circular opening portion 21 provided at a substantially center, two connecting portions 22a and 22b protruding inward from an edge portion of the opening portion 21, and an edge portion of the opening portion 21 on the front surface. An attachment surface 23 to which an outer edge of an edge 7 described later is attached, a wall portion 24 erected so as to surround the outer edge of the edge 7 described later, and two attachments to be attached to the baffle plate 10 shown in FIGS. And a section 25.

As shown in FIG. 4, the diaphragm 6 and the edge 7 are attached to the front side of the frame 2 so as to cover the opening 21, and the magnetic circuit 3 is attached to the back side. One end of the coil bobbin 5 as the cylinder is fixed to the diaphragm 6, and the other end thereof is inserted into the magnetic gap G of the magnetic circuit 3 arranged on the back surface through the opening 21.

As shown in FIGS. 2 and 3, on the front side of the frame 2, two terminal portions 26a and 26b connected to the lead wires 4a and 4b of the voice coil 4 are provided. The two terminal portions 26 a and 26 b are respectively provided at two corner portions that are diagonally opposed to each other among the four corner portions outside the wall portion 24 of the substantially rectangular frame 2. The connecting portion 22a is provided with one end Ta11 in the axial direction Y1 of the voice coil 4 which will be described later in the middle between the two terminal portions 26a and 26b, and the other end Ta12 at a position facing the terminal portion 26a. Has been. One end portion Tb11 of the connecting portion 22b in the axial direction Y1 is provided in the middle between the two terminal portions 26a and 26b, and the other end portion Tb12 is provided at a position facing the terminal portion 26b. As a result, the terminal portions 26a and 26b are provided near the ends Ta12 and Tb12 of the connecting portions 22a and 22b, respectively.

Recesses 23a and 24a to which the ends (parts) of the lead wires 4a and 4b are attached are provided at portions of the attachment surface 23 and the wall portion 24 that face the terminal portions 26a and 26b. The recesses 23a and 24a are provided so as to penetrate from the inner edge of the mounting surface 23 and the wall portion 24 to the outer edge thereof. The ends of the lead lines 4a and 4b are connected to the terminal portions 26a and 26b through the recesses 23a and 24a. The recess 23a is provided obliquely so as to gradually approach the ends Ta12 and Tb12 of the connecting portions 22a and 22b from the inner edge toward the outer edge.

The attached portions 25 are provided at the remaining two of the four corners of the substantially rectangular frame 2 where the terminal portions 26a and 26b are not provided. As shown in FIGS. 6 and 7, the attached portion 25 is provided in a concave shape into which two bosses 10a standing upright from a baffle plate 10 described later are fitted. As described above, by providing the terminal portions 26a and 26b and the attached portion 25 at the corner portions of the frame 2 which are diagonally opposed to each other, the speaker device 1 of the present embodiment has the voice coil 4 centered in the axial direction Y1. , 180° rotational symmetry.

As shown in FIG. 4, the magnetic circuit 3 is, for example, an inner magnet type magnetic circuit, and the magnet 31, the plate 32 to which one pole of the magnet 31 is magnetically coupled, and the other pole of the magnet 31 are magnetically coupled. And a coupled yoke 33. The magnet 31 is provided in a disk shape, and a through hole (not shown) is provided in the center. The plate 32 is provided in a disc shape, and is superposed on the surface of the magnet 31 on the side of the diaphragm 6 (=one pole side), which will be described later. This plate 32 is also provided with a through hole (not shown) that overlaps with the through hole of the magnet 31.

The yoke 33 is a disc-shaped bottom wall portion 33a that is overlaid on the surface of the magnet 31 on the side away from the vibration plate 6 (=the other pole side), and is erected from the outer edge of the bottom wall portion 33a toward the vibration plate 6. And a cylindrical yoke body 33b (=cylindrical portion), and two flange portions 33ca and 33cb (=connected portions) projecting toward the frame 2 from the end of the yoke body 33b on the side away from the bottom wall portion 33a. And have.

The magnet 31 and the plate 32 are mounted on the bottom wall portion 33a, and a through hole (not shown) overlapping the through holes of the magnet 31 and the plate 32 is provided. By inserting a pole (not shown) into the through holes of the magnet 31, the plate 32 and the yoke 33, the magnet 31, the plate 32 and the yoke 33 can be positioned and fixed. Further, by mounting the magnet 31 and the plate 32 on the bottom wall portion 33a, the magnet 31 and the plate 32 are arranged in the tubular hawk body 33b. The yoke body 33b extends to a position facing the plate 32. The magnetic gap G is a gap provided between the plate 32 and the inner side surface (=back surface) of the portion of the yoke body 33b where the flange portions 33ca and 33cb project, and penetrates in the axial direction Y2 of the voice coil 4 described later. doing.

The two flange portions 33ca, 33cb of the yoke 33 are in contact with the back surfaces of the two connecting portions 22a, 22b of the frame 2 and fixed by an adhesive or the like. As a result, the yoke 33 is connected to the frame 2.

Next, the voice coil 4 and the coil bobbin 5 will be described before describing the detailed relationship between the flange portions 33ca and 33cb and the connecting portions 22a and 22b. The voice coil 4 is formed by, for example, spirally winding a conductor around a coil bobbin 5. The coil bobbin 5 is provided in a tubular shape, one end of which in the axial direction Y2 is inserted into the magnetic gap G, and the voice coil 4 is arranged inside the magnetic gap G. When the voice coil 4 is energized in this state, a force vibrating in the axial direction Y2 is generated in the voice coil 4. The other end of the coil bobbin 5 in the axial direction Y2 is fixed to the diaphragm 6, and the diaphragm 6 is vibrated by the vibration generated in the voice coil 4.

The lead lines 4a and 4b are drawn from the voice coil 4 on the diaphragm 6 side as shown in FIG. The lead wire 4a of the voice coil 4 is drawn out from the vicinity of the end portion Tb11 of the connecting portion 22b (=one connecting portion) away from the terminal portion 26b, and is provided between the two connecting portions 22a and 22b and between the two flanges. The space located between the portions 33ca and 33cb is crossed, and is connected to the terminal portion 26a near the end Ta12 of the connecting portion 22a (=the other connecting portion).

The lead wire 4b of the voice coil 4 is drawn out from the vicinity of the end portion Ta11 of the connecting portion 22a (=one connecting portion) away from the terminal portion 26a and is provided between the two connecting portions 22a and 22b and between the two flanges. It crosses the space located between the portions 33ca and 33cb and is connected to the terminal portion 26b in the vicinity of the end Tb12 of the connecting portion 22b (=the other connecting portion). These lead lines 4a and 4b are so close to the edge of the opening 21 as they approach the end near the drawn portion (so that the angle θ between the drawn portion and the tangent to the drawn portion is an acute angle). It is provided so as to be bent outward and then inward in the middle so as to gradually approach the edge of the opening 21 toward the end.

Next, details of the connecting portions 22a and 22b and the flange portions 33ca and 33cb will be described. By the way, as shown in FIGS. 5(B) and 5(C), the height H1 of the yoke body 33b at the portion where the flange portions 33ca and 33cb are projected is equal to the portion where the flange portions 33ca and 33cb are not projected. It is provided so as to be lower than the height H2 of the yoke body 33b by the thickness of the flange portions 33ca and 33cb. Therefore, in the portion where the flange portions 33ca and 33cb are not provided, the magnetic gap G between the plate 32 is eliminated, and the magnetic flux density in the magnetic gap G becomes lower as the range where the flange portions 33ca and 33cb are not provided becomes wider. Become. However, as described above, it is necessary to provide a portion where the flange portions 33ca and 33cb are not provided in order to pass the lead wires 4a and 4b. The present embodiment aims to prevent the decrease of the magnetic flux density in the magnetic gap G by providing the flange portions 33ca and 33cb as wide as possible within the range where they do not interfere with the leader lines 4a and 4b.

Therefore, as shown in FIG. 3, the length of the flange portions 33ca and 33cb in the axial direction Y1 of the voice coil 4, which will be described later, is set longer than the length of the connecting portions 22a and 22b in the axial direction Y1. Further, both end portions Ta21 and Ta22 of the flange portion 33ca are provided so as to be located closer to the connecting portion 22b side than both end portions Ta11 and Ta12 of the connecting portion 22a, respectively. Further, both ends Tb21 and Tb22 of the flange portion 33cb are provided so as to be located closer to the connecting portion 22a than both ends Tb11 and Tb12 of the connecting portion 22b.

More specifically, the end portion Ta22 of the flange portion 33ca on the terminal portion 26a side that is in contact with the connecting portion 22a (=the other connecting portion when the connecting portion 22b is one connecting portion) is the terminal portion 26a side of the connecting portion 22a. Is located closer to the connecting portion 22b than the end portion Ta12. An end portion Tb21 of the lead wire 4a of the flange portion 33cb in contact with the connecting portion 22b is located closer to the connecting portion 22a than an end portion Tb11 of the lead wire 4a of the connecting portion 22b on the lead portion side.

Further, the terminal portion 26b side end portion Tb22 of the flange portion 33cb in contact with the coupling portion 22b (=the other coupling portion when the coupling portion 22a is one coupling portion) is the terminal portion 26b side end of the coupling portion 22b. It is located closer to the connecting portion 22a than the portion Tb12. The end portion Ta21 of the lead wire 4b of the flange portion 33ca in contact with the connecting portion 22a is located closer to the connecting portion 22b than the end portion Ta11 of the lead wire 4b of the connecting portion 22a on the lead portion side.

Further, the width W1 of the flange portions 33ca, 33cb is provided shorter than the width W2 of the connecting portions 22a, 22b, and therefore, the outer edges of the flange portions 33ca, 33cb near the end portions Ta22, Tb22 and the inner edge of the opening portion 21 are different from each other. A gap S is formed between them. Then, the ends of the leader lines 4a and 4b can be passed through the gap S. Further, since the ends of the lead wires 4a and 4b are connected to the terminal portions 26a and 26b by solder or the like and the movements are restrained by the recesses 23a and 24b, the influence of the vibration of the voice coil 4 is not so great, and the lead wires 4a and 4b are not affected. The ends of 4a and 4b are less likely to vibrate. Accordingly, even if the end portions Ta22, Tb22 of the flange portions 33ca, 33cb on the terminal portions 26a, 26b side are brought closer to the connecting portions 22b, 22a side, the lead wires 4a, 4b are not contacted.

Therefore, in the present embodiment, the distance Ta between the end portion Ta22 of the flange portion 33ca on the terminal portion 26a side and the end portion Ta12 of the connecting portion 22a on the terminal portion 26a side that contact the connecting portion 22a contacts the connecting portion 22b. The flange portion 33cb is provided longer than a distance L2 between an end portion Tb21 on the lead-out portion side of the lead wire 4a and an end portion Tb11 on the lead-out portion side of the lead wire 4a of the connecting portion 22b. Further, the distance L1 between the end portion Tb22 of the flange portion 33cb on the terminal portion 26b side in contact with the connecting portion 22b and the end portion Tb12 of the connecting portion 22b on the terminal portion 26b side is determined by drawing out the flange portion 33ca in contact with the connecting portion 22a. It is provided longer than the distance L2 between the end portion Ta21 of the lead-out portion side of the wire 4b and the end portion Ta11 of the lead-out portion 4b of the lead-out wire 4b of the connecting portion 22a.

The diaphragm 6 is made of paper, a resin such as polyetherimide, or the like, and is provided in a circular shape. The coil bobbin 5 is fixed to the diaphragm 6. The edge 7 is made of a resin such as polyurethane, and is formed in a donut shape having a circular through hole 7a. The outer peripheral portion of the edge 7 is attached to the inner peripheral portion of the diaphragm 6. The diaphragm 6 is attached so as to close the through hole 7a. Further, as shown in FIG. 5, the outer edge of the edge 7 is mounted on the mounting surface 23 of the frame 2 so as to be superposed thereon.

The speaker device 1 having the above-described configuration is attached to the baffle plate 10 as shown in FIGS. 6 and 7. The baffle plate 10 is formed in a rectangular shape when the baffle plate 10 is viewed from the front, and an exposure hole 10b for exposing the diaphragm 6 of the speaker device 1 is provided inside the baffle plate 10, particularly in the center. Two bosses 10a are provided upright on the back surface of the baffle plate 10, and the speaker device 1 is attached to the back surface of the baffle plate 10 by fitting the bosses 10a into the attached portions 25 of the frame 2. The shape of the baffle plate 10 is not limited to the rectangular shape in plan view described above, and may be a polygon including a square, a shape having a linear portion and a curved portion including a track shape, or a curved shape including an ellipse.

According to the above-described embodiment, as shown in FIG. 2 and the like, the lead wires 4a and 4b of the voice coil 4 are pulled out from the vicinity of the end portions Tb11 and Ta11 of the one coupling portion 22b and 22a, and the two flange portions are formed. Since it is connected to the terminal portions 26a and 26b in the vicinity of the ends Ta12 and Tb12 of the other connecting portion 22a and 22b, it traverses the space located between 33ca and 33cb and between the two connecting portions 22a and 22b. Even if the size is reduced, it is possible to prevent the lead wires 4a and 4b from coming into contact with the yoke 33 and the frame 2 and generating abnormal noise. Moreover, since the two connecting portions 22a and 22b of the frame 2 and the two flange portions 33ca and 33cb of the yoke 33 are in contact with each other, they are connected at two points and the yoke 33 can be firmly fixed to the frame 2. Furthermore, the end portions Ta22, Tb22 of the flange portions 33ca, 33cb in contact with the other connecting portions 22a, 22b on the terminal portions 26a, 26b side, the terminal portions 26a, 26b of the other connecting portion 22a, 22b, the end portions Ta12, Since it is located closer to one of the connecting portions 22b and 22a than Tb12, the lead wires 4a and 4b and the yoke 33 do not come into contact with each other, and the flange portions 33ca and 33cb are provided in a wide range (along the yoke body 33b. It is possible to suppress the decrease in the magnetic flux density in the magnetic gap G by forming it long.

Further, according to the above-described embodiment, the end portions Tb21, Ta21 of the lead-out portions 4a, 4b of the flange portions 33cb, 33ca in contact with the one connecting portion 22b, 22a are the connecting portions 22b, 22a. The lead lines 4a and 4b are located closer to the connecting portions 22a and 22b than the end portions Tb11 and Ta11 on the lead portion side. As a result, the flange portions 33ca and 33cb can be provided in a wider range (longer along the yoke body 33b), and the decrease in the magnetic flux density in the magnetic gap G can be suppressed.

Further, according to the above-described embodiment, the magnetic gap G is formed between the plate 32 and the inner side surface of the portion of the yoke body 33b where the flange portions 33ca and 33cb project. As a result, it is possible to prevent the magnetic flux density in the magnetic gap G from decreasing.

Further, according to the above-described embodiment, the mounting surface 23 of the edge 7 of the frame 2 is provided with the recess 23a to which part of the leader lines 4a and 4b are mounted. As a result, the movement of the lead wires 4a, 4b on the side of the terminal portions 26a, 26b is restrained by the recess 23a, so that the lead wires 4a, 4b and the terminal portions 26a, 26b of the flange portions 33ca, 33cb of the yoke 33 can be more reliably fixed. The contact with the end portions Ta22 and Tb22 can be suppressed.

Further, according to the above-described embodiment, the opening 21 is formed between the two connecting portions 22a and 22b of the frame 2. Thereby, the exhaust pressure of the diaphragm 6 can be reduced, and the diaphragm 6 can be easily vibrated.

Further, according to the above-described embodiment, the voice coil 4 is attached to the diaphragm 6 via the coil bobbin 5, and the lead wires 4a and 4b are drawn from the end portion of the voice coil 4 on the diaphragm 6 side. The leader lines 4 a and 4 b pass through the space located between the diaphragm 6 or the edge 7 and the yoke 33 and the frame 2. By attaching the voice coil 4 to the diaphragm 6 via the coil bobbin 5 in this manner, the diaphragm 6 side of the voice coil 4 and the diaphragm 6 are separated from each other, and the leader lines 4a and 4b and the diaphragm 6 are separated. There is no contact with.

According to the above-described embodiment, the end portions Tb21, Ta21 of the lead wires 4a, 4b of the flange portions 33cb, 33ca on the lead portion side are the end portions of the lead wires 4a, 4b of the connecting portions 22b, 22a on the lead portion side. Although it is located closer to the connecting portions 22a and 22b than the portions Tb11 and Ta11, the present invention is not limited to this. For example, the end portions Tb21, Ta21 of the lead wires 4a, 4b of the flange portions 33cb, 33ca on the lead portion side, and the end portions Tb11, Ta11 of the lead portions 4a, 4b of the connecting portions 22b, 22a on the lead portion side are shafts. It may be the same position in the circumferential direction Y1.

Further, according to the above-described embodiment, the inner magnet type magnetic circuit is used as the magnetic circuit 3, but the magnetic circuit is not limited to this. An outer magnet type magnetic circuit may be used.

Further, according to the above-described embodiment, the height H1 of the yoke body 33b in the portion provided with the flange portions 33ca, 33cb is higher than the height H2 of the yoke body 33b in the portion not provided with the flange portions 33ca, 33cb. Also, although the flange portions 33ca and 33cb are provided higher by the thickness of the flange portions 33ca and 33cb, the invention is not limited to this. The height H1 may be set higher than the height H2, and may be set higher than the thickness of the flange portions 33ca and 33cb, for example.

Further, according to the above-described embodiment, the voice coil 4 is wound around the coil bobbin 5 and one end of the coil bobbin 5 is attached to the diaphragm 6, but the present invention is not limited to this. Instead of providing the coil bobbin 5, the voice coil 4 may be attached to the diaphragm 6 via a tube different from the coil bobbin 5 on which the voice coil 4 is not wound.

Further, according to the above-described embodiment, the lead wires 4a and 4b of the voice coil 4 cross the space located between the two connecting portions 22a and 22b and between the two flange portions 33ca and 33cb. Here, when the leader lines 4a and 4b of the voice coil 4 traverse between the two connecting portions 22a and 22b and between the two flange portions 33ca and 33cb, the two connecting portions 22a and 22b and the two flange portions 33ca. , 33cb, the first space may be crossed, and the second space located above the first space may be crossed. The voice coil 4 may enter the space located between the two connecting portions 22a and 22b and between the two flange portions 33ca and 33cb.

Further, according to the above-described embodiment, the lead wires 4a and 4b are drawn from the end of the voice coil 4 on the diaphragm 6 side, but the present invention is not limited to this. The lead lines 4 a and 4 b may be drawn from a part of the voice coil 4 near the diaphragm 6.

In addition, the above-described embodiments merely show typical forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the gist of the present invention.

1 Speaker Device 2 Frame 4 Voice Coil 4a Lead Wire 4b Lead Wire 5 Coil Bobbin (Cylinder)
6 diaphragm 7 edge 22a connecting part 22b connecting part 23 mounting surface 26a terminal part 26b terminal part 31 magnet 32 plate 33 yoke 33a bottom wall part 33b yoke body (cylindrical part)
33ca Flange part (connected part)
33cb Flange part (connected part)
G Magnetic gap Ta11, Ta12 End of connecting part Ta21, Ta22 End of flange part Tb11, Tb12 End of connecting part Tb21, Tb22 End of flange part

Claims (1)

Voice coil,
A frame,
A yoke having two connected parts connected to the frame,
A speaker device, wherein a lead wire drawn from the voice coil crosses a space located between ends of the two connected parts.

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