JP2016034096A - Speaker device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin speaker device.SOLUTION: A voice coil 4 includes an extension line 4a that is pulled out from the vicinity of an end part Tb11 of a coupling part, crosses a space positioned between two coupling parts 22a, 22b and between two flange parts 33ca, 33cb, and is connected to a terminal part 26a in the vicinity of an end part Ta12 of the coupling part 22a, where an end part Ta22 on the terminal part 26a side of the flange part 33ca is positioned closer to the coupling part 22b than an end part Ta12 on the terminal part 26a side of the coupling part 22a. The voice coil 4 also includes an extension line 4b that is pulled out from the vicinity of an end part Ta11 of the coupling part, crosses a space positioned between the two coupling parts 22a, 22b and between the two flange parts 33ca, 33cb, and is connected to a terminal part 26b in the vicinity of an end part Tb12 of the coupling part 22b, where an end part Tb22 on the terminal part 26b side of the flange part 33cb is positioned closer to the coupling part 22a than an end part Tb12 on the terminal part 26b side of the coupling part 22b.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a speaker device.

  In a general speaker device, a voice coil is disposed so as to freely vibrate within a magnetic gap of a magnetic circuit. The leader line led out from the voice coil is fixed in a conductive state to a terminal portion provided in the speaker frame (Patent Documents 1 to 4).

JP 2004-96670 A Japanese Patent No. 4888653 Japanese Patent No. 4233745 Japanese Patent No. 3875150

  However, when the above-described speaker device is reduced in thickness, the problem is that the lead wire drawn from the voice coil may come into contact with the yoke constituting the speaker frame or the magnetic circuit to generate abnormal noise. Can be mentioned.

  This invention makes it an example of a subject to cope with such a problem. That is, an object of the present invention is to provide a thin speaker device, for example.

  In order to solve the above-described problem, a speaker device according to claim 1 includes a frame, a yoke connected in the frame, and a voice coil positioned in the yoke, and the frame includes two frames. A connecting portion, wherein the yoke has two connected portions that are in contact with the two connecting portions, respectively, and the lead wire of the voice coil is an end portion of one of the two connecting portions. And is connected to a terminal portion in the vicinity of the end of the other connecting portion across the space located between the two connecting portions and between the two connected portions, and the other connecting portion. The terminal part side end of the connected part in contact with the connecting part is located closer to the one connecting part than the terminal part side end of the other connecting part.

It is a perspective view which shows one Embodiment of the speaker apparatus of this 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 II of FIG. 1. (A) is the side view of the yoke shown in FIG. 2, (B) is the II-II sectional view taken on the line of (A), (C) is the III-III sectional view taken on the line of (A). It is a back side perspective view which shows the state which attached the speaker apparatus shown in FIG. 1 to the baffle board. 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. The two connected parts are in contact with the two connecting parts, and the lead wire of the voice coil is drawn out from the vicinity of the end of one of the two connecting parts, and between the two connecting parts and Crossing the space located between the two connected parts, connected to the terminal part in the vicinity of the end part of the other connected part, the end part on the terminal part side of the connected part contacting the other connected part is the other It is located in the said one connection part side rather than the edge part by the side of the terminal part of this connection part.

  The lead wire of the voice coil is drawn from the vicinity of one end of one of the two connecting portions, traverses the space located between the two connecting portions and between the two connected portions, and connects the other Since it is connected to the terminal part in the vicinity of the end part of the part, even if the size is reduced, it is possible to suppress the generation of noise due to the lead wire coming into contact with the yoke and the frame. In addition, since the two connecting portions of the frame and the two connected portions of the yoke are in contact with each other, the yoke can be firmly fixed to the frame by being connected at two points. Furthermore, since the end portion on the terminal portion side of the connected portion in contact with the other connecting portion is located on the one connecting portion side with respect to the end portion on the terminal portion side of the other connecting portion, the lead wire and the yoke Without the contact, it is possible to suppress a decrease in magnetic flux density in the magnetic gap.

  In addition, even if the end of the lead-out portion of the lead-out portion of the connected portion that is in contact with one of the connecting portions is located closer to the other connecting portion than the end portion of the lead-out portion of the lead-out portion of the one connecting portion Good. Thereby, the fall of the magnetic flux density in a magnetic gap can be suppressed further.

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

  In addition, a magnetic gap may be formed between the back surface of the portion of the cylindrical portion where the flange portion protrudes and the plate. Thereby, the fall of the magnetic flux density in a magnetic gap can be suppressed.

  Moreover, the attachment surface of the edge of a flame | frame may be provided with the recessed part to which a part of leader line is attached. Thereby, since the movement of a part of the leader line is restrained by the recess, the contact between the leader line and the connected part 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 easily vibrates.

  The voice coil is attached to the diaphragm via a cylinder, and the leader line is drawn out from a part of the voice coil on the diaphragm side, and the leader line is between the diaphragm or the edge and the yoke and the frame. You may pass through the space located in. By attaching the voice coil to the diaphragm via the cylinder in this way, the diaphragm side of the voice coil and the diaphragm are separated from each other, and the lead wire and the diaphragm are not in contact with each other.

  Hereinafter, a 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 a diaphragm and an edge are removed from the speaker device shown in FIG. FIG. 3 is a front view showing a state where 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 line II of FIG. 5A is a side view of the yoke shown in FIG. 2, FIG. 5B is a cross-sectional view taken along line II-II in FIG. 5A, and FIG. 5C is FIG. 5A. It is the III-III sectional view taken on the line. FIG. 6 is a rear perspective view showing a state where 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 that is supported by the frame 2 and forms a magnetic gap G, a voice coil 4 that is inserted in the magnetic gap G so as to vibrate, A cylinder (coil bobbin) 5 around which the voice coil 4 is wound, a diaphragm 6 on 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, and ABS, and is provided in a substantially rectangular shape (substantially square shape in the present embodiment) when viewed from the front. The frame 2 is provided at a circular opening 21 provided substantially at the center, two connecting portions 22a and 22b projecting inward from the edge of the opening 21, and the edge of the opening 21 on the front surface. A mounting surface 23 to which an outer edge of the edge 7 to be described later is attached, a wall portion 24 standing so as to surround the outer edge of the edge 7 to be described later, and two attachments for attaching to the baffle plate 10 shown in FIGS. Part 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 is inserted through the opening 21 into the magnetic gap G of the magnetic circuit 3 disposed on the back surface.

  On the front side of the frame 2, as shown in FIGS. 2 and 3, two terminal portions 26 a and 26 b respectively connected to the lead wires 4 a and 4 b of the voice coil 4 are provided. The two terminal portions 26 a and 26 b are respectively provided at two corner portions facing diagonally out of the four corner portions outside the wall portion 24 of the substantially rectangular frame 2. In the connecting portion 22a, one end portion Ta11 in the direction Y1 around the axis of the voice coil 4 described later is provided in the middle between the two terminal portions 26a and 26b, and the other end portion Ta12 is provided at a position facing the terminal portion 26a. It has been. In the connecting portion 22b, one end portion Tb11 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. Thereby, the terminal portions 26a and 26b are provided in the vicinity of the end portions Ta12 and Tb12 of the connecting portions 22a and 22b, respectively.

  Concave portions 23 a and 24 a to which the end portions (parts) of the lead wires 4 a and 4 b are attached are provided at portions of the mounting surface 23 and the wall portion 24 facing the terminal portions 26 a and 26 b. The recesses 23a and 24a are provided so as to penetrate from the inner edge of the mounting surface 23 and the wall 24 to the outer edge. The ends of the lead wires 4a and 4b are connected to the terminal portions 26a and 26b through the recesses 23a and 24a. The concave portion 23a is provided obliquely so as to gradually approach the end portions Ta12 and Tb12 of the connecting portions 22a and 22b as it goes from the inner edge to the outer edge.

  The attached portions 25 are respectively provided on the remaining two of the four corner portions of the substantially rectangular frame 2 where the terminal portions 26a and 26b are not provided. As shown in FIGS. 6 and 7, the mounted portion 25 is provided in a concave shape into which two bosses 10 a erected 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 facing each other on the diagonal line of the frame 2, the speaker device 1 of the present embodiment is centered on the axial direction Y1 of the voice coil 4. , 180 ° rotational symmetry.

  As shown in FIG. 4, the magnetic circuit 3 is, for example, an internal magnetic circuit, and includes a magnet 31, a plate 32 in which one pole of the magnet 31 is magnetically coupled, and the other pole of the magnet 31 magnetically. And a combined yoke 33. The magnet 31 is provided in a disk shape, and a through hole (not shown) is provided at the center. The plate 32 is provided in a disc shape, and is superimposed on a surface of the magnet 31 on the vibration plate 6 side (= one pole side) described later. The plate 32 is also provided with a through hole (not shown) that overlaps the through hole of the magnet 31.

  The yoke 33 is erected from the outer surface of the magnet 31 to the vibration plate 6 from the outer edge of the bottom wall portion 33a. A cylindrical yoke body 33b (= cylinder part) and two flange parts 33ca and 33cb (= connected parts) projecting toward the frame 2 from the end of the yoke body 33b on the side away from the bottom wall part 33a. And have.

  The bottom wall 33 a is provided with the magnet 31 and the plate 32, and a through hole (not shown) that overlaps the through hole of the magnet 31 and the plate 32 is provided. By inserting poles (not shown) into the through holes of the magnet 31, plate 32 and yoke 33, the magnet 31, plate 32 and yoke 33 can be positioned and fixed. Moreover, the magnet 31 and the plate 32 are arrange | positioned in the cylindrical fork main body 33b by mounting the magnet 31 and the plate 32 on the bottom wall part 33a. The yoke body 33 b 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 side) of the portion of the yoke body 33b where the flange portions 33ca and 33cb protrude, and penetrates in the axial direction Y2 of the voice coil 4 described later. doing.

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

  Next, the voice coil 4 and the coil bobbin 5 will be described before the detailed relationship between the flange portions 33ca and 33cb and the connecting portions 22a and 22b. The voice coil 4 is formed, for example, by winding a conductive wire around a coil bobbin 5 in a spiral shape. The coil bobbin 5 is provided in a cylindrical shape, one end in the axial direction Y2 is inserted into the magnetic gap G, and the voice coil 4 is disposed in the magnetic gap G. When the voice coil 4 is energized in this state, a force that vibrates in the axial direction Y2 is generated in the voice coil 4. The coil bobbin 5 has the other end in the axial direction Y <b> 2 fixed to the diaphragm 6, and vibrates the diaphragm 6 by vibration generated in the voice coil 4.

  As shown in FIG. 2, the lead lines 4a and 4b are drawn from the voice coil 4 on the diaphragm 6 side. The lead wire 4a of the voice coil 4 is drawn from the vicinity of the end portion Tb11 on the side away from the terminal portion 26b of the connecting portion 22b (= one connecting portion), and between the two connecting portions 22a and 22b and the two flanges. It crosses the space located between the parts 33ca and 33cb and is connected to the terminal portion 26a in the vicinity of the end portion Ta12 of the connecting portion 22a (= the other connecting portion).

  The lead wire 4b of the voice coil 4 is drawn from the vicinity of the end portion Ta11 on the side away from the terminal portion 26a of the connecting portion 22a (= one connecting portion), and between the two connecting portions 22a and 22b and the two flanges. It crosses the space located between the parts 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 approach the edge portion of the opening portion 21 as they approach the end portion in the vicinity of the lead portion (so that the angle θ formed by the lead portion and the tangent line at the lead portion becomes an acute angle). It is bent toward the outer side, bent toward the inner side in the middle, and provided 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. 5B and 5C, the height H1 of the yoke body 33b where the flange portions 33ca and 33cb are projected is a portion where the flange portions 33ca and 33cb are not projected. The yoke body 33b 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 is eliminated from the plate 32, 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 place where the flange portions 33ca and 33cb are not provided in order to pass the lead wires 4a and 4b. In the present embodiment, one of the purposes is to prevent the magnetic flux density in the magnetic gap G from being lowered by providing the flange portions 33ca and 33cb in as wide a range as possible without interfering with the lead wires 4a and 4b.

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

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

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

  Further, the width W1 of the flange portions 33ca and 33cb is shorter than the width W2 of the connecting portions 22a and 22b. Therefore, the outer edge of the flange portions 33ca and 33cb near the end portions Ta22 and Tb22 and the inner edge of the opening portion 21 A gap S is generated between them. And the edge part of leader line 4a, 4b can be passed through this clearance gap S. FIG. Further, the end portions of the lead wires 4a and 4b are connected to the terminal portions 26a and 26b by solder or the like, and the movement is restricted by the recess portions 23a and 24b. The ends of 4a and 4b are unlikely to vibrate. Thereby, even if the end portions Ta22 and Tb22 on the terminal portions 26a and 26b side of the flange portions 33ca and 33cb are brought closer to the connecting portions 22b and 22a side, the lead wires 4a and 4b are not contacted.

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

  The diaphragm 6 is made of a resin such as paper or polyetherimide, and is provided in a circular shape. A 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 provided with a circular through hole 7a. The outer periphery of the edge 7 is attached to the inner periphery 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 overlap therewith.

  The speaker device 1 having the above-described configuration is attached to a baffle plate 10 as shown in FIGS. 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 in the baffle plate 10, particularly in the center. Two bosses 10 a are erected 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 10 a into the attached portions 25 of the frame 2. The shape of the baffle plate 10 is not limited to the above-described rectangular shape in plan view, and may be a polygon including a square, a shape including a linear portion including a track shape and a curved portion, 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 drawn out from the vicinity of the end portions Tb11 and Ta11 of the one coupling portion 22b and 22a, and the two flange portions. Since it is connected to the terminal portions 26a and 26b in the vicinity of the ends Ta12 and Tb12 of the other connecting portions 22a and 22b across 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 to generate abnormal noise. In addition, since the two connecting portions 22a and 22b of the frame 2 are in contact with the two flange portions 33ca and 33cb of the yoke 33, the yoke 33 can be firmly fixed to the frame 2 by being connected at two points. Furthermore, the end portions Ta22 and Tb22 on the terminal portions 26a and 26b side of the flange portions 33ca and 33cb in contact with the other connecting portions 22a and 22b are the end portions Ta12 and 26b on the other connecting portions 22a and 22b, respectively. Since the lead wires 4a, 4b and the yoke 33 are not in contact with each other, the flange portions 33ca, 33cb are provided over a wide area (along the yoke body 33b). It is possible to suppress the decrease in the magnetic flux density in the magnetic gap G.

  Further, according to the above-described embodiment, the end portions Tb21 and Ta21 on the lead portion side of the lead lines 4a and 4b of the flange portions 33cb and 33ca in contact with the one connection portions 22b and 22a are connected to the one connection portions 22b and 22a. The lead wires 4a and 4b are located on the other connecting portion 22a and 22b side with respect to 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 inner surface of the portion of the yoke body 33 b where the flange portions 33 ca and 33 cb protrude and the plate 32. Thereby, the fall of the magnetic flux density in the magnetic gap G can be suppressed.

  Moreover, according to embodiment mentioned above, the recessed part 23a to which a part of leader line 4a, 4b is attached is provided in the attachment surface 23 of the edge 7 of the flame | frame 2. As shown in FIG. Thereby, since the movement of the terminal portions 26a and 26b of the lead wires 4a and 4b is restricted by the recess 23a, the lead wires 4a and 4b and the terminal portions 26a and 26b of the flange portions 33ca and 33cb of the yoke 33 are more reliably connected. 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 22 a and 22 b 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 embodiment described above, the voice coil 4 is attached to the diaphragm 6 via the coil bobbin 5, and the lead wires 4a and 4b are drawn out from the end of the voice coil 4 on the diaphragm 6 side. The lead wires 4 a and 4 b pass through a 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 way, the diaphragm 6 side of the voice coil 4 and the diaphragm 6 are separated from each other, and the lead wires 4a and 4b and the diaphragm 6 are separated. There is no contact.

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

  Further, according to the above-described embodiment, an internal magnet type magnetic circuit is used as the magnetic circuit 3, but the present invention is not limited to this. An external magnetic type magnetic circuit may be used.

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

  Further, according to the embodiment described above, 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 this is not a limitation. You may make it attach to the diaphragm 6 via the cylinder different from the coil bobbin 5 in which the voice coil 4 is not wound, without providing the coil bobbin 5. FIG.

  Moreover, according to embodiment mentioned above, the leader lines 4a and 4b of the voice coil 4 have crossed the space located between the two connection parts 22a and 22b and between the two flange parts 33ca and 33cb. Here, when the lead wires 4a and 4b of the voice coil 4 cross 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 are used. , 33cb may cross a second space located above the first space. The voice coil 4 may enter a 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 portion of the voice coil 4 on the diaphragm 6 side, but this is not restrictive. The lead wires 4a and 4b only have to be drawn from a part of the voice coil 4 in the vicinity of the diaphragm 6.

  Further, the above-described embodiments are merely representative 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 scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Speaker apparatus 2 Frame 4 Voice coil 4a Leader 4b Leader 5 Coil bobbin (cylinder)
6 Diaphragm 7 Edge 22a Connecting portion 22b Connecting portion 23 Mounting surface 26a Terminal portion 26b Terminal portion 31 Magnet 32 Plate 33 Yoke 33a Bottom wall portion 33b Yoke body (tubular portion)
33ca Flange (Connected part)
33cb flange (connected part)
G Magnetic gap Ta11, Ta12 End of connecting part Ta21, Ta22 End of flange Tb11, Tb12 End of connecting Tb21, Tb22 End of flange

Claims (7)

A frame, a yoke coupled in the frame, and a voice coil located in the yoke;
The frame has two connecting portions;
The yoke has two connected parts respectively contacting the two connecting parts;
The lead wire of the voice coil is drawn out from the vicinity of the end of one of the two connecting parts, and a space located between the two connecting parts and between the two connected parts. Crossed, connected to the terminal portion in the vicinity of the end of the other connecting portion
The terminal part side end of the connected part in contact with the other connecting part is located closer to the one connecting part than the terminal part side end of the other connecting part. Speaker device. An end portion of the connected portion in contact with the one connecting portion on the lead portion side of the lead line is positioned on the other connecting portion side with respect to an end portion on the lead portion side of the lead line of the one connecting portion. The speaker device according to claim 1, wherein: The distance between the terminal part side end of the connected part in contact with the other connecting part and the terminal part side end of the other connecting part is the distance of the connected part in contact with the one connecting part. The speaker device according to claim 2, wherein the distance is longer than a distance between an end portion of the lead line on the lead portion side and an end portion of the one connecting portion on the lead portion side of the lead line. The yoke has a cylindrical portion, and a flange portion protruding from the cylindrical portion toward the frame,
A magnet and a plate are disposed in the cylindrical portion,
The speaker device according to any one of claims 1 to 3, wherein a magnetic gap is formed between a back surface of a portion of the cylindrical portion where the flange portion protrudes and the plate. A diaphragm, and an edge for supporting the diaphragm on the frame,
The speaker device according to claim 4, wherein a concave portion to which a part of the lead wire is attached is provided on a mounting surface of the edge of the frame. The speaker device according to claim 5, wherein an opening is formed between the two connecting portions of the frame. The voice coil is attached to the diaphragm via a cylinder,
The lead wire is drawn from a part of the voice coil on the diaphragm side,
The speaker device according to claim 5, wherein the lead line passes through the space located between the diaphragm or the edge, the yoke, and the frame.

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