Speaker device and vehicle door

Abstract

To reduce the risk of breakage of a leaf spring while suppressing an increase of the number of components.SOLUTION: A speaker device 1 includes: a speaker unit 2; an attachment member 40 for attaching the speaker unit 2 to an attachment object member 50; and a leaf spring 30 arranged to allow a direction of the thickness to meet a direction of a center axis O of the speaker unit and positioned between the speaker unit 2 and the attachment member 40, so as to support the speaker unit 2. A part of the attachment member 40 includes a stopper 43 extending inward in a radial direction Y of the speaker unit 2. The stopper 43 is overlapped with a part of the speaker unit 2 when viewed from the direction of the center axis O of the speaker unit 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a speaker device and a vehicle door. [Background technology]

[0002] Some speaker devices include a housing that houses a speaker unit, a mounting member that mounts the housing to a mounting target member, and a spring member provided between the housing and the mounting member (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6424963 specification Summary of the Invention [Problem to be solved by the invention]

[0004] For example, if the displacement of the speaker unit becomes large, the spring member may be damaged. Also, it is required to suppress an increase in the number of parts in the speaker device. The present disclosure provides a speaker device capable of suppressing an increase in the number of parts while reducing the risk of damage to the spring member. [Means for solving the problem]

[0005] The speaker device of the present disclosure includes a speaker unit, a mounting member for mounting the speaker unit to a mounting target member, and a leaf spring disposed between the speaker unit and the mounting member such that the plate thickness direction is aligned with the central axis direction of the speaker unit and supports the speaker unit. A portion of the mounting member includes a stopper extending inward in the radial direction of the speaker unit. The stopper overlaps with a portion of the speaker unit when viewed from the central axis direction of the speaker unit.

[0006] The speaker device of the present disclosure includes a speaker unit, a mounting member for mounting the speaker unit to a mounting target member, and a leaf spring that is disposed such that its plate thickness direction is along the central axis direction of the speaker unit, is positioned between the speaker unit and the mounting member, and supports the speaker unit. The leaf spring has an inner portion that is disposed on the inner side in the radial direction of the speaker unit and fixed to the speaker unit, an outer portion that is disposed on the outer side in the radial direction of the speaker unit and fixed to the mounting member, and a connecting portion that connects the inner portion and the outer portion. The speaker unit includes a leaf spring fixing portion to which the inner portion is fixed, and an extension portion that protrudes outward in the radial direction of the speaker unit beyond the leaf spring fixing portion. The leaf spring includes a stopper portion that extends inward in the radial direction of the speaker unit so as to overlap a part of the extension portion when viewed from the central axis direction of the speaker unit.

[0007] The speaker device of the present disclosure includes a speaker unit held in an opening of a target member, a mounting member for mounting the speaker unit to the target member, and a leaf spring disposed between the speaker unit and the mounting member with its plate thickness direction aligned with a central axis direction of the speaker unit, the leaf spring being disposed apart from the target member in the central axis direction, and a portion of the speaker unit being disposed so as to overlap with the target member when viewed from the central axis direction.

[0008] A vehicle door according to the present disclosure includes the above-mentioned speaker device and an attachment target member having an opening formed therein. The speaker device is held in the opening. [Brief description of the drawings]

[0009] [Figure 1] 1 is a sectional view of the speaker device according to the first embodiment. [Diagram 2] FIG. [Diagram 3] FIG. 11 is a partial cross-sectional view showing a speaker device according to a second embodiment. [Figure 4]FIG. 4 is an enlarged plan view showing a part of a connecting portion of the leaf spring. [Diagram 5] 13 is an enlarged plan view showing a part of a connecting portion of a leaf spring according to a modified example. FIG. [Figure 6] FIG. 11 is a partial cross-sectional view showing a speaker device according to a third embodiment. [Figure 7] 1 is an exploded perspective view showing a vehicle door equipped with a speaker device; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Note that the dimensions and scale of each part in the drawings are appropriately different from the actual ones. In addition, the embodiment described below is a preferred specific example of the present disclosure. Therefore, various technically preferable limitations are attached to this embodiment. However, the scope of the present disclosure is not limited to these forms unless otherwise specified in the following description to limit the present disclosure.

[0011] Fig. 1 is a cross-sectional view of a speaker device 1 according to a first embodiment. The speaker device 1 shown in Fig. 1 is used as an in-vehicle speaker device, for example, as shown in Fig. 7.

[0012] The speaker device 1 may be attached to a vehicle door 100 via an inner panel 104, which is an attachment target member 50, for example. The use of the speaker device 1 is not limited to in-vehicle use, and may be for other purposes. The attachment target member 50 to which the speaker device 1 is attached is not limited to an inner panel. The attachment target member 50 may be another member such as a door trim 103. The attachment target member 50 has an opening 50a in which the speaker device 1 is held. For example, the speaker device 1 is fixed to a peripheral portion surrounding the opening 50a via an attachment member 40, which will be described later.

[0013] FIG. 1 shows a state in which the speaker device 1 is inserted into an opening 50a of a mounting target member 50. The cross section shown in FIG. 1 is a cross section cut along an axis O of the speaker unit 2. The axis O is a line segment parallel to the vibration direction of a diaphragm 3 described later and passing through the center of the diaphragm 3. The direction intersecting the axis O is a radial direction Y of the speaker unit 2. In the direction of the axis O, the side on which the diaphragm 3 is arranged is the front side, and the opposite side is the back side B. The front side is the sound-emitting surface side F. The axis O of the speaker unit 2 is the axis O of a magnetic circuit 6 described later. The diaphragm 3 includes a sound-emitting surface. The back side of the speaker device 1 may be, for example, the back side of the magnetic circuit 6, or may be a part of the speaker frame 5 that covers the magnetic circuit 6 from the back side B.

[0014] The speaker device 1 includes a speaker unit 2. The speaker unit 2 has a diaphragm 3, a driving section 4, and a speaker frame 5. The speaker unit 2 is a structure in which the diaphragm 3, the driving section 4, and the speaker frame 5 are unitized.

[0015] The diaphragm 3 is a vibrating body made of a sheet material that emits sound by vibration. The sheet material is obtained, for example, by impregnating a fiber base material with a resin material and then curing or solidifying the resin material. Examples of the resin material include acrylic resin, polyurethane, melamine resin, modified rubber resin, and phenolic resin. Examples of the fiber base material include carbon fiber, aramid fiber, glass fiber, ceramic fiber, silica fiber, metal fiber, potassium titanate fiber, zirconia fiber, polyacrylate fiber, polyphenylene sulfide fiber, vinylon fiber, rayon fiber, nylon fiber, polyester fiber, acrylic fiber, polypropylene fiber, polyethylene fiber, cotton fiber, hemp fiber, and cellulose fiber.

[0016] The diaphragm 3 vibrates in a direction along the axis O. The diaphragm 3 is cone-shaped. Note that the shape of the diaphragm 3 is not limited to the cone shape, and may be, for example, a dome shape.

[0017] The driving unit 4 includes a mechanism for driving the diaphragm 3 based on an input electric signal. The driving unit 4 includes a magnetic circuit 6 that generates a magnetic field, and a voice coil 7 connected to the diaphragm 3.

[0018] The magnetic circuit 6 includes a magnet 8, a yoke 9, and a center pole 10. The magnet 8, the yoke 9, and the center pole 10 are arranged on the back side B of the diaphragm 3 in the direction of the axis O. The magnet 8, the yoke 9, and the center pole 10 are arranged coaxially with the axis O. The magnet 8 is annular, the yoke 9 is disk-shaped, and the center pole 10 is cylindrical. The yoke 9 and the center pole 10 are made of magnetic materials.

[0019] The magnetic flux generated from the magnet 8 passes through the yoke 9 and the center pole 10. The magnetic flux passing through the magnetic circuit 6 forms a magnetic field around the magnetic circuit 6. The voice coil 7 is disposed within the magnetic field generated by the magnetic circuit 6.

[0020] The speaker unit 2 includes a bobbin 11 around which a voice coil 7 is wound. The bobbin 11 includes a cylindrical portion 11a and a center cap 11b. The center cap 11b closes the opening on the front side of the cylindrical portion 11a. The voice coil 7 is wound around the outer circumferential surface of the cylindrical portion 11a of the bobbin 11. The front side is the side opposite to the back side in the direction in which the axis O extends.

[0021] The diaphragm 3 is formed around the center cap 11b when viewed from the direction of the axis O. An inner periphery 3a of the diaphragm 3 is connected to an outer periphery of the center cap 11b.

[0022] The speaker unit 2 has an elastic edge portion 12. When viewed from the direction of the axis O, the edge portion 12 is ring-shaped and is provided along the outer periphery 3b of the diaphragm 3. The outer periphery 3b of the diaphragm 3 is connected to the edge portion 12. The diaphragm 3 is connected to the speaker frame 5 via the edge portion 12.

[0023] The speaker frame 5 holds the diaphragm 3 and the magnetic circuit 6. The speaker frame 5 is made of iron or a metal material, or a resin material. The shape of the speaker frame 5 is not limited to the shape shown in FIG. 1 and may be any shape as long as it can hold the diaphragm 3 and the magnetic circuit 6.

[0024] The speaker frame 5 includes a cone portion 13, a magnetic circuit accommodating portion 14, and a flange 15. The cone portion 13 is formed so as to cover the diaphragm 3 from the outside in the radial direction Y. The magnetic circuit accommodating portion 14 is disposed on the back side B of the cone portion 13 in the direction of the axis O. The magnetic circuit accommodating portion 14 accommodates the magnet 8 and the yoke 9 of the magnetic circuit 6. The back side B portion of the center pole 10 is accommodated in the magnetic circuit accommodating portion 14. The sound emitting surface side F portion of the center pole 10 extends into the cone portion 13. The magnetic circuit accommodating portion 14 accommodates a part of the magnetic circuit 6.

[0025] The flange 15 protrudes outward in the radial direction Y from an end portion 13a on the sound emitting surface side F of the cone portion 13. The flange 15 has an annular shape when viewed from the axis O direction.

[0026] The speaker device 1 includes a leaf spring fixing part 20, a leaf spring 30, and a mounting member 40. The leaf spring fixing part 20 fixes the leaf spring 30 to the speaker frame 5. The leaf spring fixing part 20 is provided on the back surface 15b of the flange 15. The leaf spring fixing part 20 is ring-shaped when viewed from the axis O direction. A cross section of the leaf spring fixing part 20 perpendicular to the circumferential direction is rectangular. The inner diameter of the leaf spring fixing part 20 is larger than, for example, the outer diameter of the end part 13a on the sound emitting surface side F of the cone part 13. The flange 15 is disposed outside the cone part 13 in the radial direction Y of the speaker unit 2.

[0027] The outer diameter of the leaf spring fixing part 20 may be the same as the outer diameter of the flange 15. The leaf spring fixing part 20 has a predetermined thickness. The thickness of the leaf spring fixing part 20 is the distance between the front surface 20a and the back surface 20b of the leaf spring fixing part 20 in the direction of the axis O. The back surface 20b of the leaf spring fixing part 20 is disposed on the back surface side B of the back surface 15b of the flange 15 by the thickness of the leaf spring fixing part 20.

[0028] The leaf spring fixing part 20 is not limited to being fixed to the flange 15. The leaf spring fixing part 20 may be fixed to, for example, the cone part 13 of the speaker frame 5. The leaf spring fixing part 20 may be formed integrally with the speaker frame 5. The leaf spring fixing part 20 may be formed as a separate member from the flange 15, or may be formed integrally with the flange 15.

[0029] The leaf spring fixing portion 20 may be disposed so as to be spaced apart from the flange 15 in the direction of the axis O. The leaf spring fixing portion 20 is not limited to being ring-shaped. The leaf spring fixing portion 20 may be formed partially in the circumferential direction of the speaker unit 2. The leaf spring fixing portion 20 may include a portion extending in the direction of the axis O. The leaf spring fixing portion 20 is not limited to being disposed on the back side B of the flange 15, and may be disposed on the front side of the flange 15. The leaf spring fixing portion 20 may be disposed inside the flange 15 or outside the flange 15 in the radial direction Y of the speaker unit 2.

[0030] Fig. 2 is a perspective view showing a leaf spring 30. The leaf spring 30 shown in Figs. 1 and 2 is a support member that is located between the speaker unit 2 and the attachment target member 50 in the force transmission path between the speaker unit 2 and the attachment target member 50 and supports the speaker unit 2. The force transmission path between the speaker unit 2 and the attachment target member 50 includes parts to which force for supporting the speaker unit 2 is transmitted. In the speaker device 1, the force transmission path between the speaker unit 2 and the attachment target member 50 includes the leaf spring fixing part 20, the leaf spring 30, and the attachment member 40.

[0031] The leaf spring 30 is a ring-shaped leaf spring. The thickness direction of the leaf spring is along the axis O direction. The leaf spring 30 may be made of metal or resin. The leaf spring 30 may be made of rubber. The leaf spring 30 may be made of other materials. The leaf spring 30 is not limited to being ring-shaped, and may extend in the radial direction Y. The leaf spring 30 may include an arc-shaped portion arranged along the circumferential direction of the speaker unit 2 and a portion arranged along the radial direction Y.

[0032] The leaf spring 30 has a first ring (inner portion) 31, a second ring (outer portion) 32, and a connecting portion 33. The first ring 31 is disposed on the inner periphery side, and the second ring 32 is disposed on the outer periphery side. The inner periphery side is the side closer to the axis O in the radial direction Y of the speaker unit 2. The outer periphery side is the side farther from the axis O in the radial direction of the speaker unit 2. The inner periphery side is the inside in the radial direction Y, and the outer periphery side is the outside in the radial direction Y.

[0033] The connecting portion 33 is disposed between the first ring 31 and the second ring 32 in the radial direction Y, and connects the first ring 31 and the second ring 32. The leaf spring 30 has a plurality of connecting portions 33. The leaf spring 30 has, for example, four connecting portions 33. The connecting portions 33 are spaced apart from each other in the circumferential direction.

[0034] The connecting portion 33 includes an arc-shaped portion 33a, a portion 33b connecting the portion 33a and the first ring 31, and a portion 33c connecting the portion 33a and the second ring 32. The arc-shaped portion 33a has a predetermined length in the circumferential direction of the leaf spring 30. A gap G1 exists between the connecting portions 33 adjacent to each other in the circumferential direction. In the radial direction Y, a gap G2 exists between the first ring 31 and the portion 33a. A gap G3 exists between the second ring 32 and the portion 33a. In the longitudinal direction of the arc-shaped portion 33a, the portion 33b is connected to one end, and the portion 33c is connected to the other end.

[0035] 1, the first ring 31 is joined to the leaf spring fixing part 20, and the second ring 32 is joined to the mounting member 40. The first ring 31 is joined to the back surface 20b of the leaf spring fixing part 20. The second ring 32 is joined to the mounting member 40. The leaf spring 30 may be screwed to the back surface 20b of the leaf spring fixing part 20 or may be glued. The leaf spring 30 may also be joined to the back surface 20b by other methods.

[0036] The mounting member 40 is a member for mounting the speaker unit 2 to a mounting target member 50. The mounting member 40 includes a main body 41, a flange 42, and a stopper 43. The main body 41 is ring-shaped when viewed from the direction of the axis O. The length of the main body 41 in the direction of the axis O is longer than the sum of the thickness of the flange 15 of the speaker frame 5 and the thickness of the leaf spring fixing portion 20. The inner diameter of the main body 41 is larger than the outer diameter of the flange 15.

[0037] In the radial direction Y of the speaker unit 2, the main body 41 is disposed outside the flange 15. In the radial direction Y, the flange 15 and the leaf spring fixing portion 20 are disposed inside the main body 41. The flange 15 and the leaf spring fixing portion 20 do not protrude outward from the main body 41 in the axial O direction.

[0038] The flange 42 protrudes from the main body 41 in the radial direction Y. The flange 42 is disposed on the back side B of the main body 41. The flange 42 is fixed to the mounting target member 50. The plate thickness direction of the flange 42 is along the axis O direction. The flange 42 includes a front surface 42a and a back surface 42b spaced apart in the axis O direction.

[0039] The attachment target member 50 has an opening 50a. The flange 42 is attached to a peripheral portion 50b of the opening 50a. The attachment target member 50 includes a front surface 50c and a back surface 50d. The back surface 42b of the flange 42 is joined to the front surface 50c of the attachment target member 50.

[0040] The flange 42 is fixed to the target member 50 with bolts. The flange 42 may be joined to the target member 50 by other methods. Note that the front surface 42a of the flange 42 may be joined to the back surface 50d of the target member 50.

[0041] The stopper 43 protrudes inward from the main body 41 in the radial direction Y. The stopper 43 is ring-shaped when viewed from the axis O direction. The stopper 43 has a predetermined width along the radial direction Y. The stopper 43 is formed over the entire circumference in the circumferential direction of the mounting member 40. The stopper 43 is disposed so as to overlap the flange 15 of the speaker frame 5 when viewed from the axis O direction.

[0042] The inner diameter of the stopper 43 is smaller than the outer diameter of the flange 15 of the speaker frame 5. The stopper 43 has a base 43a and an inner peripheral edge 43b. The base 43a of the stopper 43 is connected to the main body 41. The stopper 43 is disposed on the sound emitting surface side F of the flange 15. The stopper 43 includes a front surface 43c and a rear surface 43d spaced apart in the direction of the axis O. The inner peripheral edge 43b is spaced apart from the front surface 15a of the flange 15 in the direction of the axis O. A gap is generated between the front surface 15a of the flange 15 and the rear surface 43d of the stopper 43 in the direction of the axis O.

[0043] The mounting member 40 has a back portion 45. The back portion 45 has a support portion 46 and a stopper 47. The support portion 46 is ring-shaped when viewed from the axis O direction. The support portion 46 is disposed at a position overlapping the main body 41 when viewed from the axis O direction. The second ring 32 of the leaf spring 30 is disposed between the main body 41 and the support portion 46 in the axis O direction. The second ring 32 of the leaf spring 30 is sandwiched between the support portion 46 and the main body 41 in the axis O direction. The support portion 46 is screwed to the main body 41, for example. The support portion 46 may be bonded to the second ring 32 of the leaf spring 30. The support portion 46 may be fixed to the main body 41 by other methods.

[0044] The stopper 47 protrudes inward from the support portion 46 in the radial direction Y. The stopper 47 is ring-shaped when viewed from the axis O direction. The stopper 47 has a predetermined width along the radial direction Y. The stopper 47 is formed over the entire circumference in the circumferential direction of the mounting member 40. The stopper 47 is disposed so as to overlap the leaf spring fixing portion 20 when viewed from the axis O direction.

[0045] The inner diameter of the stopper 47 is smaller than the outer diameter of the leaf spring fixing portion 20. The stopper 47 has a base portion 47a and an inner peripheral edge portion 47b. The base portion 47a of the stopper 47 is connected to the support portion 46. The stopper 47 is disposed on the back side B of the leaf spring fixing portion 20. The stopper 47 includes a front surface 47c and a back surface 47d spaced apart in the axial direction O. The inner peripheral edge portion 47b is spaced apart from the back surface 20b of the leaf spring fixing portion 20 in the axial direction O. A gap is generated between the first ring 31 of the leaf spring 30 and the front surface 47c of the stopper 47 in the axial direction O.

[0046] The mounting member 40 is made of, for example, resin. The mounting member 40 may be made of metal. The mounting member 40 has a predetermined strength. The stopper 43 is an example of a sound emitting surface side stopper that restricts movement of the speaker unit 2 toward the sound emitting surface side F. The stopper 47 is an example of a rear side stopper that restricts movement of the speaker unit 2 toward the rear side B.

[0047] The speaker device 1 includes a sealing member 16 that seals the gap between the mounting member 40 and the speaker unit 2. One end of the sealing member 16 is joined to the flange 15. The other end of the sealing member 16 is joined to the stopper 43. The sealing member 16 is an elastic member, for example, a rubber film. The material of the sealing member 16 is not limited to rubber, and may be resin or the like. Moreover, the sealing member 16 is not limited to a film shape, and may be, for example, a block shape.

[0048] Next, a description will be given of the operation of the speaker device 1. In the speaker device 1, the speaker unit 2 may vibrate in the axis O direction, for example.

[0049] A leaf spring 30 is connected to the speaker unit 2. The thickness direction of the leaf spring 30 is along the axis O direction. The leaf spring 30 is more likely to deform in the axis O direction than in the radial direction Y. Vibrations of the speaker unit 2 in the axis O direction are damped by the leaf spring 30. As a result, vibrations of the speaker unit 2 are less likely to be transmitted to the mounting member 40 and the mounting target member 50.

[0050] The speaker device 1 includes a stopper 43 disposed on the sound emitting surface side F of the flange 15. When the displacement of the speaker unit 2 toward the sound emitting surface side F becomes large, the flange 15 of the speaker frame 5 abuts against the stopper 43. This suppresses the movement of the speaker unit 2 toward the sound emitting surface side F.

[0051] The mounting member 40 of the speaker device 1 includes a stopper 43. The stopper 43 may be formed as a separate member from the main body 41, but in this embodiment, it is formed integrally with the main body 41, thereby reducing the number of parts. In the speaker device 1, it is possible to suppress the displacement of the speaker unit 2 while reducing the number of parts. In the speaker device 1, the stopper 43 is formed integrally with the main body 41 of the mounting member 40, thereby simplifying the work of mounting the speaker device 1 to the mounting target member 50. When the mounting member 40 includes a stopper that is a separate member, the number of steps of the mounting work to the mounting target member 50 increases, but according to the speaker device 1 of the present disclosure, the mounting member 40 includes the stopper 43, thereby simplifying the mounting work.

[0052] In the speaker device 1, the rear part 45 having the stopper 47 is fixed to the main body 41. Therefore, it is not necessary to attach the stopper 43 and the stopper 47 separately to the attachment target member 50. By attaching the attachment member 40 to the attachment target member 50, the stopper 47 is also attached to the attachment target member 50.

[0053] The speaker device 1 includes a stopper 47 disposed on the rear side B of the leaf spring fixing part 20. When the displacement of the speaker unit 2 toward the rear side B increases, the first ring 31 of the leaf spring 30 fixed to the rear side 20b of the leaf spring fixing part 20 abuts against the stopper 47. This suppresses the movement of the speaker unit 2 toward the rear side B.

[0054] In this way, in the speaker device 1 according to the first embodiment, the displacement of the speaker unit 2 is suppressed, and thus the risk of damage to the leaf spring 30 is reduced. In the speaker device 1, damage to the leaf spring 30 can be prevented and vibration of the speaker unit 2 can be suppressed. In the speaker device 1, the displacement of the speaker unit 2 can be suppressed within a certain range, and thus the load on the leaf spring 30 is reduced, and the risk of fatigue failure of the leaf spring 30 is reduced. In the speaker device 1, the life of the leaf spring 30 can be extended.

[0055] In the speaker device 1, the axis O direction extends along the horizontal direction, and the spring constant of the leaf spring 30 in the axis O direction is lower than the spring constant in the radial direction Y of the leaf spring 30. Therefore, the speaker device 1 is soft in the horizontal direction and hard in the vertical direction. The speaker device 1 has a structure suitable for vertical placement in which the axis O direction is arranged along the horizontal direction. Note that being soft in the horizontal direction means that the speaker unit 2 is easily displaced in the horizontal direction. Being hard in the vertical direction means that the speaker unit 2 is less likely to be displaced in the vertical direction. The speaker unit 2 is more likely to be displaced in the horizontal direction than in the vertical direction.

[0056] Moreover, the speaker device 1 includes a sealing member 16, which seals the gap between the speaker unit 2 and the mounting member 40. Therefore, the intrusion of sound from the back side B to the sound emitting surface side F is suppressed.

[0057] Next, a speaker device 1B according to a second embodiment will be described with reference to FIG. 3. FIG. 3 is a partial cross-sectional view showing the speaker device 1B according to the second embodiment. The speaker device 1B according to the second embodiment is different from the speaker device 1 according to the first embodiment in that the speaker device 1B according to the second embodiment includes an extension portion 62 extending outward from the flange 15 in the radial direction Y, includes a mounting member 70 instead of the mounting member 40, and does not include a back portion 45 having a stopper 47, but a portion 33c of the leaf spring 30 functions as a stopper portion 75. In the description of the speaker device 1B according to the second embodiment, the same description as in the first embodiment will be omitted.

[0058] The speaker device 1B includes an extension portion 62 that protrudes outward from the flange 15 in the radial direction Y. The extension portion 62 is formed integrally with the flange 15. The extension portion 62 is disposed outside the leaf spring fixing portion 20 in the radial direction Y. When viewed from the axis O direction, the extension portion 62 is disposed so as to overlap with the connecting portion 33 of the leaf spring 30. The extension portion 62 is disposed up to a position where it overlaps with the portion 33c of the connecting portion 33.

[0059] The extension portion 62 is formed over the entire circumference in the circumferential direction of the flange 15. The extension portion 62 is not limited to being formed over the entire circumference in the circumferential direction of the flange 15, and may be formed partially in the circumferential direction. In addition, the extension portion 62 may be formed integrally with the flange 15, or may be formed as a separate member from the flange 15. When the extension portion 62 is formed integrally with the flange 15, the number of parts can be reduced.

[0060] The speaker device 1 includes a mounting member 70 for mounting the speaker unit 2 to a mounting target member 50. The mounting member 70 includes a main body 71, a flange 72, and a stopper 73. The main body 71 has a configuration similar to that of the main body 41 of the first embodiment. The flange 72 has a configuration substantially the same as that of the flange 42 of the first embodiment, but is partially different. A stepped surface 72c on which the second ring 32 of the leaf spring 30 is disposed is formed on a rear surface 72b of the flange 72. Note that the stepped surface 72c may not be formed on the flange 72.

[0061] The stopper 73 protrudes inward from the main body 71 in the radial direction Y. The stopper 73 is ring-shaped when viewed from the axis O direction. The stopper 73 is formed over the entire circumference in the circumferential direction of the mounting member 70. The stopper 73 is disposed so as to overlap the extension portion 62 when viewed from the axis O direction.

[0062] The inner diameter of the stopper 73 is smaller than the outer diameter of the extension portion 62 of the speaker frame 5. The stopper 73 has a base portion 73a and an inner peripheral edge portion 73b. The base portion 73a of the stopper 73 is connected to the main body 71. The stopper 73 is disposed on the sound emitting surface side F of the extension portion 62. The stopper 73 includes a front surface 73c and a rear surface 73d spaced apart in the direction of the axis O. The inner peripheral edge portion 73b is spaced apart from the front surface 62a of the extension portion 62 in the direction of the axis O. A gap is generated between the front surface 62a of the extension portion 62 and the rear surface 73d of the stopper 73 in the direction of the axis O. The stopper 73 is an example of a stopper on the sound emitting surface side.

[0063] FIG. 4 is a plan view showing an enlarged portion of the connecting portion 33 of the leaf spring 30. The portion 33c of the connecting portion 33 of the leaf spring 30 shown in FIG. 3 and FIG. 4 functions as a stopper portion 75. The stopper portion 75 includes a protruding portion protruding inward in the radial direction Y from the second ring 32. The second ring 32 is attached to a step surface 72c of the flange 72 of the mounting member 70. The second ring 32 is sandwiched between the flange 72 and the peripheral portion 50b of the mounting target member 50 in the axial direction O. The stopper portion 75 is disposed so as to overlap with the extension portion 62 as viewed from the axial direction O. The tip 75a of the stopper portion 75 shown in FIG. 4 is located inside the extension portion 62 in the radial direction Y. The tip 75a of the stopper portion 75 is located at the innermost position of the stopper portion 75 in the radial direction Y.

[0064] The speaker device 1B includes a sealing member 76 that seals the gap between the mounting member 70 and the speaker unit 2. One end of the sealing member 76 is joined to the flange 15. The sealing member 76 may be connected to the extension portion 62. The other end of the sealing member 76 is joined to the stopper 73. The sealing member 76 is an elastic member, for example, a rubber film. The material of the sealing member 76 is not limited to rubber, and may be resin or the like. Moreover, the sealing member 76 is not limited to a film shape, and may be, for example, a block shape.

[0065] The speaker device 1B according to the second embodiment has the same effect as the speaker device 1 according to the first embodiment. Since the speaker device 1B includes the leaf spring 30, the vibration of the speaker unit 2 is damped. As a result, the vibration of the speaker unit 2 is less likely to be transmitted to the mounting member 70 and the mounting target member 50.

[0066] The speaker device 1B includes an extension portion 62 disposed outside the leaf spring fixing portion 20 in the radial direction Y, and a stopper 73 extending out to a position overlapping with the extension portion 62 as viewed from the axial direction O. When the displacement of the speaker unit 2 toward the sound emitting surface side F becomes large, the extension portion 62 of the speaker frame 5 comes into contact with the stopper 73. This suppresses the movement of the speaker unit 2 toward the sound emitting surface side F.

[0067] In the speaker device 1B, the mounting member 70 includes a stopper 73. The stopper 73 may be formed as a separate member from the main body 71, but in this embodiment, it is formed integrally with the main body 71, thereby reducing the number of parts. In the speaker device 1B, it is possible to suppress the displacement of the speaker unit 2 while reducing the number of parts. In addition, since the stopper 73 is formed integrally with the main body 71 of the mounting member 70, it is possible to simplify the work of mounting the mounting member 70 to the mounting target member 50.

[0068] The speaker device 1B includes a stopper portion 75 that protrudes to a position overlapping with the extending portion 62 when viewed from the axis O direction. In the speaker device 1B, a portion 33c that is a part of the connecting portion 33 of the leaf spring 30 functions as the stopper portion 75. When the displacement of the speaker unit 2 toward the rear side B becomes large, the extending portion 62 abuts against the stopper portion 75. This suppresses the movement of the speaker unit 2 toward the rear side B.

[0069] In this manner, in the speaker device 1B according to the second embodiment, the displacement of the speaker unit 2 is suppressed, thereby reducing the risk of damage to the leaf spring 30. In the speaker device 1B, damage to the leaf spring 30 is prevented, and the vibration of the speaker unit 2 can be suppressed.

[0070] Next, a leaf spring 30B including a stopper portion 77 according to a modified example will be described with reference to Fig. 5. The leaf spring 30B shown in Fig. 5 is different from the leaf spring 30 of the speaker device 1B according to the second embodiment in that an inner portion 32a in the radial direction Y of the second ring 32 functions as the stopper portion 77. In the description of the modified example, the same description as that of the speaker devices 1 and 1B according to the first and second embodiments will be omitted.

[0071] 5, an opening 50a of the mounting target member 50 is indicated by a dashed line. The leaf spring 30B includes a portion 32a disposed on the inside in the radial direction Y and a portion 32b disposed on the outside. The portion 32a is disposed on the inside of the portion 32b in the radial direction Y. The portion 32a is disposed on the inside of the opening 50a, and the portion 32b is disposed on the outside of the opening 50a.

[0072] The portion 32a protrudes toward the inside of the opening 50a when viewed from the direction of the axis O. The portion 32a is disposed so as to overlap with the extension portion 62 shown in Fig. 3 when viewed from the direction of the axis O. The outer diameter of the extension portion 62 is larger than the inner diameter of the second ring 32 of the leaf spring 30B.

[0073] The portion 32a of the second ring 32 of the leaf spring 30B is an example of an inner edge portion functioning as a stopper portion 77. The leaf spring 30B includes stopper portions 75, 77. The speaker device 1B may be configured to include the leaf spring 30B instead of the leaf spring 30. In the speaker device 1B including such a leaf spring 30B, when the displacement of the speaker unit 2 toward the rear side B increases, the extension portion 62 abuts against the stopper portions 75, 77. This suppresses the movement of the speaker unit 2 toward the rear side B.

[0074] The leaf springs 30, 30B may include other portions that function as stoppers. For example, the leaf springs 30, 30B may have a protruding portion that protrudes inward in the radial direction Y from the second ring 32 in the gap G1 between the connecting portions 33 adjacent in the circumferential direction. This protruding portion is formed so as to overlap with the extending portion 62 when viewed from the axis O direction. Such a protruding portion functions as a stopper.

[0075] Next, a speaker device 1C according to a third embodiment will be described with reference to FIG. 6. FIG. 6 is a partial cross-sectional view showing the speaker device 1C according to the third embodiment. The speaker device 1C according to the third embodiment is different from the speaker device 1 according to the first embodiment in that the speaker device 1C does not include a rear part 45 having a stopper 47, and a peripheral part 50b of an opening 50a of an attachment target member 50 has a function of suppressing displacement of the speaker unit 2, and that the attachment member 80 having a different structure of a flange 82 is provided instead of the attachment member 40. The attachment member 80 has a stopper 83 having a similar configuration to the stopper 43 of the first embodiment. In the description of the third embodiment, the same description as in the first and second embodiments will be omitted. The stopper 83 is an example of a stopper on the sound emitting surface side.

[0076] The outer diameter OD1 of the flange 15 of the speaker device 1C is larger than the inner diameter ID1 of the opening 50a of the mounting target member 50. The leaf spring fixing part 20 is provided on the back surface 15b of the flange 15. The outer diameter of the leaf spring fixing part 20 is approximately the same as the outer diameter OD1 of the flange 15. When viewed from the axis O direction, the inner peripheral edge part 83b of the stopper 83, the flange 15, the leaf spring fixing part 20, the first ring 31 of the leaf spring 30, and the peripheral edge part 50b of the opening 50a of the mounting target member 50 are arranged at positions overlapping each other. In the third embodiment, the peripheral edge part 50b of the mounting target member 50 has a function of suppressing the displacement of the speaker unit 2.

[0077] The mounting member 80 includes a main body 81, a flange 82, and a stopper 83. The main body 81 has the same configuration as the main body 41 of the first embodiment. The flange 82 protrudes outward from the main body 81 in the radial direction Y. The flange 82 has a front surface 82a and a back surface 82b spaced apart in the axial direction O. The flange 82 is formed with a step surface 82c and a protruding portion 82d. The step surface 82c is formed inside the protruding portion 82d in the radial direction Y. The step surface 82c includes a surface perpendicular to the axial line O. The protruding portion 82d protrudes toward the back surface side B in the axial direction O beyond the step surface 82c. The back surface 82b of the flange 82 is the surface of the protruding portion 82d, and is joined to the front surface 50c of the mounting target member 50. The step surface 82c is spaced apart from the front surface 50c of the mounting target member 50 in the axial direction O.

[0078] The second ring 32 of the leaf spring 30 is attached to the step surface 82c. The leaf spring 30 is spaced apart from the front surface 50c of the attachment target member 50 in the direction of the axis O. A gap is generated between the leaf spring 30 and the front surface 50c of the attachment target member 50. In other words, a gap exists between the leaf spring 30 and the peripheral portion 50b of the opening 50a in the direction of the axis O.

[0079] The speaker device 1C according to the third embodiment also has the same effect as the speaker device 1 according to the first embodiment. Since the outer diameter OD1 of the flange 15 of the speaker device 1C is larger than the inner diameter ID1 of the opening 50a of the mounting target member 50, the peripheral portion 50b of the opening 50a has a function of suppressing the displacement of the speaker unit 2. In the speaker device 1C, when the displacement of the speaker unit 2 toward the rear side B increases, the first ring 31 of the leaf spring 30 attached to the leaf spring fixing portion 20 abuts against the peripheral portion 50b. This suppresses the movement of the speaker unit 2 toward the rear side B.

[0080] In the third embodiment, the peripheral portion 50b of the opening 50a of the attachment target member 50 suppresses the displacement of the speaker unit 2. Therefore, there is no need to separately provide a stopper on the back side B of the leaf spring 30. In the third embodiment, an increase in parts is suppressed, and the displacement of the speaker unit 2 can be suppressed with a simple configuration.

[0081] In this way, in the speaker device 1C according to the third embodiment, the displacement of the speaker unit 2 is suppressed, and the risk of damage to the leaf spring 30 is reduced. In the speaker device 1C, damage to the leaf spring 30 can be prevented and vibration of the speaker unit 2 can be suppressed. Note that the peripheral portion 50b of the opening 50a may include a portion that protrudes inward in the radial direction of the opening 50a. This inward protruding portion is disposed so as to overlap a part of the speaker unit 2 when viewed in the axial O direction. This makes it possible to suppress the displacement of the speaker unit 2 in the axial O direction.

[0082] Next, a vehicle door (vehicle door) 100 including the speaker device 1 will be described with reference to Fig. 7. Fig. 7 is an exploded perspective view showing the vehicle door 100 including the speaker device 1 according to the embodiment. As shown in Fig. 7, the vehicle door 100 includes a first panel 102 called an outer panel in contact with the outside, a second panel 103 called a door trim that is provided on the passenger compartment side of the vehicle door 100 as an interior material, a third panel 104 called an inner panel that is provided between the first panel 102 and the second panel 103, and the speaker device 1 attached to the third panel 104. The third panel 104 is an example of a panel member and corresponds to the attachment target member 50.

[0083] The first panel 102 and the third panel 104 are generally made of steel plates, and the front, rear and lower outer edge portions thereof are joined together. The first panel 102 and the third panel 104 may also be made of an aluminum alloy or carbon material. The second panel 103 is generally made of a synthetic resin molded plate. However, in the present disclosure, the constituent materials of these panels 102, 103, 104 are not limited to those mentioned above. A frame 107 is provided at the top of the first panel 102 and the third panel 104, and houses the window glass 106 so that it can move up and down.

[0084] The third panel 104 is provided with an opening 104a (opening 50a) for accommodating the speaker device 1, and a plurality of openings 104b for accommodating a motor, a door lock actuator, etc. (not shown) for vertically moving the window glass 106. In this embodiment, at least a part of these openings 104b is not blocked by a motor, a door lock actuator, etc. (not shown), and no dedicated member for blocking the openings 104b is provided.

[0085] The second panel 103 is attached to the third panel 104 by removably fixing an outer edge portion of the second panel 103 to the third panel 104 with connecting members 109X, 109Y. A groove-shaped packing attachment portion is provided along the outer edge portion of the second panel 103, and packing 110 is fitted into the packing attachment portion, and this packing 110 maintains the airtightness of the space between the second panel 103 and the third panel 104. This space communicates with the space formed between the first panel 102 and the third panel 104 through at least a portion of an opening provided in the third panel 104.

[0086] The speaker unit 2 is attached to the third panel 104 via an attachment member 40. The attachment member 40 is fixed using a screw. The vehicle door 100 may include speaker devices 1B and 1C instead of the speaker device 1.

[0087] It should be noted that the above-described embodiments merely illustrate typical forms of the present disclosure, and the present disclosure is not limited to the above-described embodiments, and various modifications and additions are possible without departing from the gist of the present disclosure.

[0088] In the above embodiment, the flange 15 is exemplified as a part of the speaker unit 2 that comes into contact with the stopper 43, but the part that comes into contact with the stopper 43 may be another part. For example, the part that comes into contact with the stopper 43 may be another part connected to the flange 15. The part that comes into contact with the stopper 43 may be any part that can suppress the displacement of the speaker unit 2 by coming into contact with the stopper 43.

[0089] In the above embodiment, the first ring 31 of the leaf spring 30 is exemplified as the portion that comes into contact with the stopper 47, but the portion that comes into contact with the stopper 47 may be the leaf spring fixing portion 20 or another portion. For example, the portion that comes into contact with the stopper 47 may be another portion that protrudes outward in the radial direction Y from the speaker frame 5. The portion that comes into contact with the stopper 47 may be any portion that can suppress displacement of the speaker unit 2 by coming into contact with the stopper 47.

[0090] In the above-described embodiment, the leaf spring 30 is arranged on the back side B of the flange 15 in the direction of the axis O. However, the leaf spring 30 may be arranged on the sound emitting surface side F of the flange 15.

[0091] In the above-described embodiment, an example is given of the case where the flange 15 is arranged on the front surface 50c side of the mounting target member 50 in the direction of the axis O, but the flange 15 may also be arranged on the back surface 50d side of the mounting target member 50.

[0092] In the above embodiment, the stoppers 43, 47 are provided on both sides of the flange 15 in the direction of the axis O, but the stoppers may be arranged only on the sound emitting surface side F or the back surface side B.

[0093] In the above-described embodiment, the speaker device 1 is arranged so that the axis O is horizontal, but the speaker device 1 may be arranged so that the axis O is vertical, or the speaker device 1 may be arranged so that the axis O is inclined with respect to the horizontal.

[0094] In the above embodiment, the speaker device 1 is disposed in a vehicle door, but the speaker device 1 may be disposed in other parts of the vehicle. Also, the speaker device 1 may be applied to objects other than a vehicle.

[0095] In the above embodiment, the sealing member 16 that seals the gap between the mounting member 40 and the flange 15 has been described, but the sealing member 16 may have other configurations. The speaker device 1 may be configured without the sealing member 16. The speaker device 1 may be configured with a sealing member that seals the gaps of other components. The speaker device 1 may be configured with a sealing member that seals the gaps of the leaf spring 30. The sealing member may be formed of a rubber film having elasticity and may seal the gaps of the leaf spring 30. The sealing member may be disposed in the gaps of the leaf spring 30, or may be disposed so as to cover the gaps. The speaker device 1 may also be configured with a spring member that functions as the sealing member. The speaker device 1 may be configured with a rubber spring member that does not have any gaps. The sealing member may seal the gaps between a plurality of other components. [Explanation of symbols]

[0096] 1, 1B, 1C...speaker device, 2...speaker unit, 3...diaphragm, 5...speaker frame, 15...flange (part of speaker unit), 20...leaf spring fixing part, 30, 30B...leaf spring, 31...first ring (inner part), 32...second ring (outer part, stopper), 32a...inner part (inner edge part), 33...connecting part, 33c...part (protruding part, stopper part), 40, 70, 80...mounting member, 43...stopper (stopper on the sound emitting surface side) ), 47... stopper (rear side stopper), 50... mounting member, 50a... opening, 50b... peripheral portion (periphery of opening) 62... extension portion, 73... stopper (sound emitting surface side stopper), 75, 77... stopper portion, 83... stopper (sound emitting surface side stopper), 100... vehicle door (vehicle door), 104... third panel (mounting member, panel member), 104a... opening, B... rear side, F... sound emitting surface side, O... central axis of speaker unit, Y... radial direction.

Claims

1. A speaker unit; A mounting member for mounting the speaker unit to a mounting target member; a support member positioned between the speaker unit and the mounting member and supporting the speaker unit; Equipped with a portion of the mounting member including a stopper extending inward in a radial direction of the speaker unit; the stopper overlaps with a portion of the speaker unit when viewed from a central axis direction of the speaker unit, The support member is disposed so that a plate thickness direction thereof is aligned with a central axis direction of the speaker unit. Speaker equipment.

2. The support member is a leaf spring. The speaker device according to claim 1.

3. the support member is more likely to deform in a direction along the central axis of the speaker unit than in a radial direction of the speaker unit; The speaker device according to claim 1.

4. The support member has a lower spring constant in a central axis direction of the speaker unit than in a radial direction of the speaker unit. The speaker device according to claim 1.

5. The support member is an inner portion disposed radially inside the speaker unit and fixed to the speaker unit; an outer portion disposed radially outward of the speaker unit and fixed to the mounting member; a longitudinal connecting portion connecting the inner portion and the outer portion; The speaker device according to claim 1 .

6. A portion of the speaker unit includes a flange that protrudes outward in a radial direction of the speaker unit, The stopper is disposed apart from the flange in the central axis direction of the speaker unit. The speaker device according to any one of claims 1 to 5.

7. The speaker unit has a sound emitting surface and a rear surface, The stopper is a stopper on the sound emitting surface side that suppresses displacement of the speaker unit in a direction from the rear surface toward the sound emitting surface; a rear stopper that suppresses displacement of the speaker unit in a direction from the sound emitting surface toward the rear surface, The speaker device according to any one of claims 1 to 6.

8. The speaker device according to any one of claims 1 to 7, The attachment target member has an opening formed therein, The speaker device is held in the opening. Vehicle door.

Images