Speaker device and vehicle door

Abstract

A speaker device (1) comprises: a speaker unit (2); a mounting component (40) for mounting the speaker unit (2) on a mounting object component (50); and a leaf spring (30) arranged in a manner such that the plate thickness direction is along the center axis (O) direction of the speaker unit, located between the speaker unit (2) and the mounting component (40), and supporting the speaker unit (2). A portion of the mounting component (40) includes a stopper (43) extending inwardly along the radial direction (Y) of the speaker unit (2). The stopper (43) overlaps a portion of the speaker unit (2) when viewed from the center axis (O) direction of the speaker unit (2).

Description

Technical Field

[0001] The present invention relates to a speaker device and a vehicle door. Background Art

[0002] The speaker device includes a housing that houses a speaker unit, a mounting member that mounts the housing to a mounting target member, and a spring member that is provided between the housing and the mounting member (see, for example, Patent Document 1).

[0003] Patent Document 1: Japanese Patent No. 6424963 Summary of the invention

[0004] For example, if the displacement of the speaker unit increases, the spring component may be damaged. In addition, it is required to suppress the increase in the number of components for the speaker device. The present invention provides a speaker device that can suppress the increase in the number of components and reduce the possibility of damage to the spring component.

[0005] The speaker device of the present invention comprises: a speaker unit; a mounting member for mounting the speaker unit on a mounting target member; and an elastic member located between the speaker unit and the mounting member to support the speaker unit. A portion of the mounting member includes a stopper extending inwardly along the radial direction of the speaker unit. The stopper overlaps a portion of the speaker unit when viewed from the center axis direction of the speaker unit.

[0006] The speaker device of the present invention comprises: a speaker unit; a mounting component for mounting the speaker unit on a mounting target component; and a leaf spring which is arranged in a manner that the plate thickness direction is along the central axis direction of the speaker unit, is located between the speaker unit and the mounting component, and supports the speaker unit. The leaf spring comprises: an inner portion which is arranged on the inner side in the radial direction of the speaker unit and is fixed to the speaker unit; an outer portion which is arranged on the outer side in the radial direction of the speaker unit and is fixed to the mounting component; and a connecting portion which connects the inner portion and the outer portion. The speaker unit includes: a leaf spring fixing portion which fixes the inner portion; and an extending portion which extends outwardly in the radial direction of the speaker unit than the leaf spring fixing portion. The leaf spring includes a stopper portion which extends inwardly in the radial direction of the speaker unit in a manner that overlaps with a portion of the extending portion when viewed from the central axis direction of the speaker unit.

[0007] The speaker device of the present invention comprises: a speaker unit, which is held in an opening of a mounting object component; a mounting component, which is used to mount the speaker unit on the mounting object component; and an elastic component, which is located between the speaker unit and the mounting component and supports the speaker unit. The elastic component is arranged to be separated from the mounting object component in the central axis direction. A part of the speaker unit is arranged to overlap with the mounting object component when viewed from the central axis direction.

[0008] The vehicle door of the present invention includes the above-mentioned speaker device and a mounting target member having an opening formed therein. The speaker device is held in the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional view of the speaker device according to the first embodiment.

[0010] Figure 2 It is an oblique view showing a leaf spring.

[0011] Figure 3 It is a partial cross-sectional view showing a speaker device according to a second embodiment.

[0012] Figure 4 It is a plan view showing a part of the connecting portion of the leaf spring in an enlarged manner.

[0013] Figure 5 It is a plan view showing a part of a connecting portion of a leaf spring according to a modified example in an enlarged manner.

[0014] Figure 6 It is a partial cross-sectional view showing a speaker device according to a third embodiment.

[0015] Figure 7 It is an exploded perspective view showing a vehicle door having a speaker device. DETAILED DESCRIPTION

[0016] Below, the embodiments of the present invention are described with reference to the accompanying drawings. In addition, the size and scale of each part in the accompanying drawings are appropriately different from the actual size and scale. In addition, the embodiments described below are preferred specific examples of the present invention. Therefore, in this embodiment, various technically preferred limitations are attached. However, the scope of the present invention is not limited to these modes as long as there is no record of the content that specifically limits the present invention in the following description.

[0017] Figure 1 It is a cross-sectional view of the speaker device 1 according to the first embodiment. Figure 1 The loudspeaker device 1 shown is, for example, Figure 7 As shown, it is used as a car-mounted speaker device.

[0018] The speaker device 1 can be mounted on the vehicle door 100 via the mounting object component 50, i.e., the inner panel 104, for example. In addition, the use of the speaker device 1 is not limited to vehicle-mounted use, and other uses are also possible. The mounting object component 50 on which the speaker device 1 is mounted is not limited to the inner panel. The mounting object component 50 may also be other components such as the door trim 103. An opening 50a for holding the speaker device 1 is formed in the mounting object component 50. For example, the speaker device 1 is fixed to the peripheral portion surrounding the opening 50a via the mounting component 40 described later.

[0019] exist Figure 1 , the figure shows a state where the speaker device 1 is inserted into the opening 50 a of the mounting target component 50 . Figure 1 The section shown is a section cut along the axis O of the speaker unit 2. In addition, the axis O is a line segment that is parallel to the vibration direction of the vibration plate 3 described later and passes through the center of the vibration plate 3. The direction intersecting the axis O is the radial direction Y of the speaker unit 2. In the direction of the axis O, the side on which the vibration plate 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 the magnetic circuit 6 described later. The vibration plate 3 includes a sound-emitting surface. The back side of the speaker device 1 can be, for example, the back side of the magnetic circuit 6, or it can be a part of the speaker frame 5 that covers the magnetic circuit 6 from the back side B.

[0020] The speaker device 1 includes a speaker unit 2. The speaker unit 2 includes a diaphragm 3, a driving unit 4, and a speaker frame 5. The speaker unit 2 is a structure in which the diaphragm 3, the driving unit 4, and the speaker frame 5 are unitized.

[0021] The vibration plate 3 is a vibrating body composed of a sheet material, which emits sound by vibration. The sheet material is obtained, for example, by hardening or curing a fiber substrate after impregnating a resin material. Examples of the resin material include acrylic resin, polyurethane, melamine resin, modified rubber resin, and phenolic resin. Examples of the fiber substrate include carbon fiber, aramid fiber, glass fiber, ceramic fiber, silica fiber, metal fiber, potassium titanate fiber, zirconium oxide 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.

[0022] The vibration plate 3 vibrates in a direction along the axis O. The vibration plate 3 is a cone shape. The shape of the vibration plate 3 is not limited to the cone shape, and may be a dome shape, for example.

[0023] 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 for generating a magnetic field and a voice coil 7 connected to the diaphragm 3 .

[0024] The magnetic circuit 6 includes a magnet 8, a yoke 9, and a center rod 10. The magnet 8, the yoke 9, and the center rod 10 are arranged on the back side B of the vibration plate 3 in the direction of the axis O. The magnet 8, the yoke 9, and the center rod 10 are arranged coaxially with the axis O. The magnet 8 is annular, the yoke 9 is disc-shaped, and the center rod 10 is cylindrical. The yoke 9 and the center rod 10 are made of magnetic material.

[0025] The magnetic flux generated by the magnet 8 passes through the yoke 9 and the center rod 10. The magnetic flux passing through the magnetic circuit 6 forms a magnetic field around the magnetic circuit 6. The voice coil 7 is arranged in the magnetic field formed by the magnetic circuit 6.

[0026] The speaker unit 2 has a bobbin 11 around which the voice coil 7 is wound. The bobbin 11 includes a cylindrical portion 11a and a center cover 11b. The center cover 11b closes the opening on the front side of the cylindrical portion 11a. The voice coil 7 is wound along the outer peripheral surface of the cylindrical portion 11a of the bobbin 11. In addition, the front side refers to the side opposite to the back side in the direction in which the axis O extends.

[0027] The vibration plate 3 is formed around the center cover 11 b when viewed from the direction of the axis O. The inner periphery 3 a of the vibration plate 3 is connected to the outer periphery of the center cover 11 b.

[0028] The speaker unit 2 has an elastic edge 12. The edge 12 is annular when viewed from the axis O 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 12. The diaphragm 3 is connected to the speaker frame 5 via the edge 12.

[0029] The speaker frame 5 holds the vibration plate 3 and the magnetic circuit 6. The speaker frame 5 is made of iron, metal material or resin material. The shape of the speaker frame 5 is not limited to any shape as long as it can hold the vibration plate 3 and the magnetic circuit 6. Figure 1 The shapes shown are arbitrary

[0030] 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 to cover the vibration plate 3 from the outside in the radial direction Y. The magnetic circuit accommodating portion 14 is arranged 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 in the magnetic circuit 6. The back side B of the center rod 10 is accommodated in the magnetic circuit accommodating portion 14. The sound emitting surface side F of the center rod 10 extends into the cone portion 13. The magnetic circuit accommodating portion 14 accommodates a part of the magnetic circuit 6.

[0031] The flange 15 extends outward in the radial direction Y from an end 13 a of the conical portion 13 on the sound emitting surface side F. The flange 15 has an annular shape when viewed from the axis O direction.

[0032] The speaker device 1 includes a leaf spring fixing portion 20, a leaf spring (elastic member) 30, and a mounting member 40. The leaf spring fixing portion 20 fixes the leaf spring 30 to the speaker frame 5. The leaf spring fixing portion 20 is provided on the back surface 15b of the flange 15. The leaf spring fixing portion 20 is annular when viewed from the axis O direction. The cross section of the leaf spring fixing portion 20 orthogonal to the circumferential direction is rectangular. The inner diameter of the leaf spring fixing portion 20 is, for example, larger than the outer diameter of the end portion 13a on the sound emitting surface side F of the conical portion 13. The flange 15 is arranged on the outer side of the conical portion 13 in the radial direction Y of the speaker unit 2.

[0033] The outer diameter of the leaf spring fixing portion 20 may be the same as the outer diameter of the flange 15. The leaf spring fixing portion 20 has a predetermined thickness. The thickness of the leaf spring fixing portion 20 is the distance between the front surface 20a and the back surface 20b of the leaf spring fixing portion 20 in the direction of the axis O. The back surface 20b of the leaf spring fixing portion 20 is arranged at a position closer to the back surface side B than the back surface 15b of the flange 15 by the thickness of the leaf spring fixing portion 20.

[0034] The leaf spring fixing portion 20 is not limited to a structure fixed to the flange 15. The leaf spring fixing portion 20 may be fixed to the conical portion 13 of the speaker frame 5, for example. In addition, the leaf spring fixing portion 20 may be formed integrally with the speaker frame 5. The leaf spring fixing portion 20 may be formed as a component separate from the flange 15, or may be formed integrally with the flange 15.

[0035] In addition, the leaf spring fixing portion 20 may be arranged separately from the flange 15 in the direction of the axis O. The leaf spring fixing portion 20 is not limited to an annular structure. The leaf spring fixing portion 20 may also be formed locally 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 arranged on the back side B of the flange 15, and may be arranged on the front side of the flange 15. In addition, the leaf spring fixing portion 20 may be arranged on the inner side than the flange 15 in the radial direction Y of the speaker unit 2, and may also be arranged on the outer side than the flange 15.

[0036] Figure 2 It is a perspective view showing the leaf spring 30 . Figure 1 and Figure 2The leaf spring 30 shown is located between the speaker unit 2 and the mounting target component 50 in the force transmission path between the speaker unit 2 and the mounting target component 50. The force transmission path between the speaker unit 2 and the mounting target component 50 includes a component to which a 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 mounting target component 50 includes the leaf spring fixing portion 20, the leaf spring 30, and the mounting component 40.

[0037] The leaf spring 30 is an annular leaf spring. The thickness direction of the leaf spring is along the axis O direction. The leaf spring 30 can be formed of metal or resin. The leaf spring 30 can be formed of rubber. The leaf spring 30 can also be formed of other materials. The leaf spring 30 is not limited to an annular structure, and can also be a structure extending in the radial direction Y. The leaf spring 30 can include an arc-shaped portion arranged along the circumference of the speaker unit 2, and a portion arranged along the radial direction Y. Furthermore, the leaf spring 30 can be made of any material and can be in any shape as long as it is an elastic component that can support the speaker unit 2. For example, it can be an O-ring or an annular viscoelastic body.

[0038] The leaf spring 30 includes a first ring portion (inner portion) 31, a second ring portion (outer portion) 32, and a connecting portion 33. The first ring portion 31 is disposed on the inner circumference side, and the second ring portion 32 is disposed on the outer circumference side. The inner circumference side is the side close to the axis O in the radial direction Y of the speaker unit 2. The outer circumference side is the side away from the axis O in the radial direction of the speaker unit 2. The inner circumference side is the inner side in the radial direction Y, and the outer circumference side is the outer side in the radial direction Y.

[0039] The connection portion 33 is disposed between the first ring portion 31 and the second ring portion 32 in the radial direction Y, and connects the first ring portion 31 and the second ring portion 32. The leaf spring 30 has a plurality of connection portions 33. For example, the leaf spring 30 has four connection portions 33. The connection portions 33 are separated from each other in the circumferential direction.

[0040] The connecting portion 33 includes: an arc-shaped portion 33a; a portion 33b connecting the portion 33a and the first ring portion 31; and a portion 33c connecting the portion 33a and the second ring portion 32. The arc-shaped portion 33a has a predetermined length in the circumferential direction of the leaf spring 30. There is a gap G1 between the connecting portions 33 adjacent to each other in the circumferential direction. In the radial direction Y, there is a gap G2 between the first ring portion 31 and the portion 33a. There is a gap G3 between the second ring portion 32 and the portion 33a. In the length direction of the arc-shaped portion 33a, one end is connected to the portion 33b, and the other end is connected to the portion 33c.

[0041] like Figure 1As shown, the first ring portion 31 is engaged with the leaf spring fixing portion 20, and the second ring portion 32 is engaged with the mounting member 40. The first ring portion 31 is engaged with the back surface 20b of the leaf spring fixing portion 20. The second ring portion 32 is engaged with the mounting member 40. The leaf spring 30 may be screwed or bonded to the back surface 20b of the leaf spring fixing portion 20. The leaf spring 30 may also be engaged with the back surface 20b by other methods.

[0042] The mounting member 40 is a member for mounting the speaker unit 2 on the mounting object member 50. The mounting member 40 includes a main body 41, a flange 42, and a stopper 43. The main body 41 is annular when viewed from the axis O direction. The length of the main body 41 in the axis O direction is longer than the total 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.

[0043] In the radial direction Y of the speaker unit 2, the body 41 is arranged outside the flange 15. In the radial direction Y, the flange 15 and the leaf spring fixing portion 20 are arranged inside the body 41. The flange 15 and the leaf spring fixing portion 20 do not protrude outward from the body 41 in the axis O direction.

[0044] The flange 42 extends from the body 41 in the radial direction Y. The flange 42 is disposed on the back side B of the body 41. The flange 42 is fixed to the mounting object component 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 separated in the axis O direction.

[0045] The mounting object component 50 is provided with an opening 50a. The flange 42 is mounted on the peripheral edge 50b of the opening 50a. The mounting object component 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 mounting object component 50.

[0046] The flange 42 is screwed to the mounting object component 50. The flange 42 may be joined to the mounting object component 50 by other methods. In addition, the front surface 42a of the flange 42 may be joined to the back surface 50d of the mounting object component 50.

[0047] The stopper 43 extends inward from the main body 41 along the radial direction Y. The stopper 43 is annular when viewed from the axis O direction. The stopper 43 has a predetermined width along the radial direction Y. The stopper 43 is formed all over the circumference of the mounting member 40. The stopper 43 is arranged so as to overlap with the flange 15 of the speaker frame 5 when viewed from the axis O direction.

[0048] 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 includes 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 arranged on the sound emitting surface side F of the flange 15. The stopper 43 includes a front surface 43c and a back surface 43d separated in the axis O direction. The inner peripheral edge 43b is separated from the front surface 15a of the flange 15 in the axis O direction. In the axis O direction, a gap is formed between the front surface 15a of the flange 15 and the back surface 43d of the stopper 43.

[0049] 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 annular when viewed from the axis O direction. The support portion 46 is arranged at a position overlapping with the main body 41 when viewed from the axis O direction. In the axis O direction, the second ring portion 32 of the leaf spring 30 is arranged between the main body 41 and the support portion 46. The second ring portion 32 of the leaf spring 30 is sandwiched by the support portion 46 and the main body 41 in the axis O direction. The support portion 46 is, for example, fastened to the main body 41 by screws. The support portion 46 may also be bonded to the second ring portion 32 of the leaf spring 30. The support portion 46 may also be fixed to the main body 41 by other methods.

[0050] The stopper 47 extends inward from the support portion 46 along the radial direction Y. The stopper 47 is annular when viewed from the axis O direction. The stopper 47 has a predetermined width along the radial direction Y. The stopper 47 is formed to be spread over the entire circumference of the mounting member 40. The stopper 47 is arranged to overlap with the leaf spring fixing portion 20 when viewed from the axis O direction.

[0051] The inner diameter of the stopper 47 is smaller than the outer diameter of the leaf spring fixing portion 20. The stopper 47 includes 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 arranged on the back side B of the leaf spring fixing portion 20. The stopper 47 includes a front side 47c and a back side 47d separated in the axis O direction. The inner peripheral edge portion 47b is separated from the back side 20b of the leaf spring fixing portion 20 in the axis O direction. In the axis O direction, a gap is formed between the first ring portion 31 of the leaf spring 30 and the front side 47c of the stopper 47.

[0052] The material of the mounting member 40 is, for example, resin. The material of the mounting member 40 may also be metal. The mounting member 40 has a predetermined strength. The stopper 43 is an example of a stopper on the sound emitting surface side that restricts the movement of the speaker unit 2 to the sound emitting surface side F. The stopper 47 is an example of a stopper on the back side that restricts the movement of the speaker unit 2 to the back side B.

[0053] The speaker device 1 has a sealing member 16 for sealing 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, such as a rubber film. The material of the sealing member 16 is not limited to rubber, and may be resin or the like. In addition, the sealing member 16 is not limited to a film shape, and may be a block shape, for example.

[0054] Next, the operation of the speaker device 1 will be described. In the speaker device 1, for example, the speaker unit 2 vibrates in the axis O direction.

[0055] The leaf spring 30 is connected to the speaker unit 2. The plate thickness direction of the leaf spring 30 is along the axis O direction. The leaf spring 30 is more easily deformed in the axis O direction than in the radial direction Y. The vibration of the speaker unit 2 in the axis O direction is attenuated by the leaf spring 30. Therefore, the vibration of the speaker unit 2 is not easily transmitted to the mounting component 40 and the mounting object component 50.

[0056] The speaker device 1 has a stopper 43 disposed on the sound emitting surface side F of the flange 15. When the speaker unit 2 is displaced toward the sound emitting surface side F, the flange 15 of the speaker frame 5 abuts against the stopper 43. Thus, the movement of the speaker unit 2 toward the sound emitting surface side F is suppressed.

[0057] The mounting member 40 of the speaker device 1 includes a stopper 43. The stopper 43 may be formed as a separate component from the main body 41, but in the present embodiment, it is formed integrally with the main body 41, thereby achieving a reduction in the number of components. In the speaker device 1, it is possible to reduce the number of components and suppress the displacement of the speaker unit 2. In the speaker device 1, the stopper 43 is formed integrally with the main body 41 of the mounting member 40, so the work when mounting to the mounting target component 50 is simplified. In the case where the mounting member 40 has a separate stopper, the man-hours for the mounting work to the mounting target component 50 increase, but according to the speaker device 1 of the present invention, the mounting member 40 has the stopper 43, thereby achieving a simplification of the mounting work.

[0058] In the speaker device 1, the back portion 45 having the stopper 47 is fixed to the main body 41. Therefore, it is not necessary to separately attach the stopper 43 and the stopper 47 to the mounting target component 50. By attaching the mounting component 40 to the mounting target component 50, the stopper 47 is also attached to the mounting target component 50.

[0059] The speaker device 1 has a stopper 47 disposed on the back side B of the leaf spring fixing portion 20. When the speaker unit 2 is displaced toward the back side B, the first ring portion 31 of the leaf spring 30 fixed to the back side 20b of the leaf spring fixing portion 20 abuts against the stopper 47. Thus, the movement of the speaker unit 2 toward the back side B is suppressed.

[0060] As described above, in the speaker device 1 according to the first embodiment, the displacement of the speaker unit 2 is suppressed, so the possibility of damage to the leaf spring 30 is reduced. In the speaker device 1, it is possible to prevent the leaf spring 30 from being damaged and suppress the vibration of the speaker unit 2. In the speaker device 1, the displacement of the speaker unit 2 can be suppressed within a certain range, so the load applied to the leaf spring 30 is reduced, and the possibility of fatigue fracture of the leaf spring 30 is reduced. In the speaker device 1, the life of the leaf spring 30 can be extended.

[0061] In the speaker device 1, the axis O direction extends in 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 is a longitudinal structure suitable for arranging the axis O direction in the horizontal direction. In addition, being soft in the horizontal direction means that the speaker unit 2 is easy to displace in the horizontal direction. Being hard in the vertical direction means that the speaker unit 2 is not easy to displace in the vertical direction. The speaker unit 2 is easier to displace in the horizontal direction than in the vertical direction.

[0062] Furthermore, the speaker device 1 includes the sealing member 16 to seal the gap between the speaker unit 2 and the mounting member 40. Therefore, sound is prevented from entering from the back surface side B to the sound emitting surface side F.

[0063] Next, refer to Figure 3 , a speaker device 1B according to a second embodiment will be described. Figure 3 1 is a partial cross-sectional view showing a speaker device 1B according to a 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 it has an extension portion 62 extending outward from the flange 15 in the radial direction Y, a mounting member 70 is provided instead of the mounting member 40, and the back surface portion 45 having the stopper 47 is not provided, and the portion 33c of the leaf spring 30 functions as the stopper portion 75. In the description of the speaker device 1B according to the second embodiment, the same description as that of the first embodiment is omitted.

[0064] The speaker device 1B includes an extension portion 62 extending from the flange 15 to the outside in the radial direction Y. The extension portion 62 is formed integrally with the flange 15. The extension portion 62 is arranged outside the leaf spring fixing portion 20 in the radial direction Y. When viewed from the axis O direction, the extension portion 62 is arranged so as to overlap with the connecting portion 33 of the leaf spring 30. The extension portion 62 is arranged to a position overlapping with the portion 33c of the connecting portion 33.

[0065] The extension portion 62 is formed all around the circumference of the flange 15. The extension portion 62 is not limited to being formed all around the circumference of the flange 15, and may be formed partially in the circumference. In addition, the extension portion 62 may be formed integrally with the flange 15, or may be formed as a component separate from the flange 15. If it is formed integrally with the flange 15, the number of components can be reduced.

[0066] The speaker device 1 includes a mounting member 70 for mounting the speaker unit 2 on the mounting object member 50. The mounting member 70 includes a main body 71, a flange 72, and a stopper 73. The main body 71 has the same structure as the main body 41 of the first embodiment. The flange 72 has a substantially same structure as the flange 42 of the first embodiment, but differs in one part. A stepped surface 72c is formed on the back surface 72b of the flange 72, where the second ring portion 32 of the leaf spring 30 is disposed. In addition, the stepped surface 72c may not be formed on the flange 72.

[0067] The stopper 73 extends inward from the main body 71 in the radial direction Y. The stopper 73 is annular when viewed from the axis O. The stopper 73 is formed over the entire circumference of the mounting member 70. The stopper 73 is arranged to overlap the extension portion 62 when viewed from the axis O.

[0068] 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 includes 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 arranged on the sound emitting surface side F of the extension portion 62. The stopper 73 includes a front surface 73c and a back surface 73d separated in the axis O direction. The inner peripheral edge portion 73b is separated from the front surface 62a of the extension portion 62 in the axis O direction. In the axis O direction, a gap is formed between the front surface 62a of the extension portion 62 and the back surface 73d of the stopper 73. The stopper 73 is an example of a stopper on the sound emitting surface side.

[0069] Figure 4 It is a plan view showing a part of the connecting portion 33 of the leaf spring 30 in an enlarged manner. Figure 3 and Figure 4The portion 33c of the connecting portion 33 of the leaf spring 30 shown in the figure functions as a stopper portion 75. The stopper portion 75 includes a protruding portion protruding inward from the second ring portion 32 in the radial direction Y. The second ring portion 32 is mounted on the stepped surface 72c of the flange 72 of the mounting member 70. The second ring portion 32 is sandwiched between the flange 72 and the peripheral edge portion 50b of the mounting object member 50 in the axis O direction. The stopper portion 75 is arranged so as to overlap with the extending portion 62 when viewed from the axis O direction. Figure 4 The front end 75 a of the stopper portion 75 shown is located inwardly of the extending portion 62 in the radial direction Y. The front end 75 a of the stopper portion 75 is located inwardly of the stopper portion 75 in the radial direction Y.

[0070] The speaker device 1B has 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 also 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, such as a rubber film. The material of the sealing member 76 is not limited to rubber, and may be resin or the like. In addition, the sealing member 76 is not limited to a film shape, and may be a block shape, for example.

[0071] The speaker device 1B according to the second embodiment described above has the same effects as the speaker device 1 according to the first embodiment. The speaker device 1B includes the leaf spring 30, so that the vibration of the speaker unit 2 is attenuated. Therefore, the vibration of the speaker unit 2 is not easily transmitted to the mounting member 70 and the mounting object member 50.

[0072] The speaker device 1B includes an extension portion 62 disposed at an outer side of the leaf spring fixing portion 20 in the radial direction Y, and a stopper 73 extending to a position overlapping with the extension portion 62 when viewed from the axis O. When the speaker unit 2 is displaced toward the sound emitting surface side F, the extension portion 62 of the speaker frame 5 abuts against the stopper 73. Thus, the movement of the speaker unit 2 toward the sound emitting surface side F is suppressed.

[0073] 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 the present embodiment, it is formed integrally with the main body 71, thereby reducing the number of components. In the speaker device 1B, the number of components can be reduced and the displacement of the speaker unit 2 can be suppressed. In addition, the stopper 73 is formed integrally with the main body 71 of the mounting member 70, so that the work of mounting to the mounting target member 50 can be simplified.

[0074] The speaker device 1B has a stopper portion 75 extending to a position overlapping with the extension portion 62 when viewed from the axis O direction. In the speaker device 1B, a portion 33c 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 increases, the extension portion 62 abuts against the stopper portion 75. Thus, the movement of the speaker unit 2 toward the rear side B is suppressed.

[0075] As described above, in the speaker device 1B according to the second embodiment, since the displacement of the speaker unit 2 is suppressed, the possibility of damage to the leaf spring 30 is reduced. In the speaker device 1B, the vibration of the speaker unit 2 can be suppressed by preventing damage to the leaf spring 30.

[0076] Next, refer to Figure 5 A leaf spring 30B including a stopper portion 77 according to a modified example will be described. Figure 5 The flat spring 30B shown is different from the flat spring 30 of the speaker device 1B according to the second embodiment in that the inner portion 32a of the second ring portion 32 in the radial direction Y functions as a 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 is omitted.

[0077] exist Figure 5 , the opening 50a of the mounting object component 50 is indicated by a dotted line. The leaf spring 30B has a portion 32a arranged on the inner side in the radial direction Y, and a portion 32b arranged on the outer side. The portion 32a is arranged on the inner side of the portion 32b in the radial direction Y. The portion 32a is arranged on the inner side of the opening 50a, and the portion 33b is arranged on the outer side of the opening 50a.

[0078] The portion 32a extends toward the inner side of the opening 50a when viewed from the axis O direction. Figure 3 The extension portions 62 shown are arranged in an overlapping manner. The outer diameter of the extension portion 62 is larger than the inner diameter of the second ring portion 32 of the leaf spring 30B.

[0079] The portion 32a of the second ring portion 32 of the leaf spring 30B described above is an example of the inner edge portion that functions as the stopper portion 77. The leaf spring 30B includes the stopper portions 75 and 77. The speaker device 1B may have a structure including the leaf spring 30B instead of the leaf spring 30. In the speaker device 1B including the leaf spring 30B described above, when the displacement of the speaker unit 2 toward the back side B increases, the extension portion 62 abuts against the stopper portions 75 and 77. Thus, the movement of the speaker unit 2 toward the back side B is suppressed.

[0080] The leaf springs 30 and 30B may also include other parts that function as stopper parts. For example, a protrusion extending from the second ring part 32 to the inner side in the radial direction Y may be provided in the gap G1 between the circumferentially adjacent connecting parts 33. The protrusion is formed so as to overlap with the extending part 62 when viewed from the axis O direction. The protrusion as described above functions as a stopper part.

[0081] Next, refer to Figure 6 , a speaker device 1C according to a third embodiment will be described. Figure 6 1 is a partial cross-sectional view showing a speaker device 1C according to a 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 back surface portion 45 having the stopper 47 is not provided, the peripheral portion 50b of the opening portion 50a of the mounting object component 50 has a function of suppressing the displacement of the speaker unit 2, and the mounting component 80 having a different structure with a flange 82 is provided instead of the mounting component 40. The mounting component 80 has a stopper 83 having the same structure as the stopper 43 of the first embodiment. In the description of the third embodiment, the same description as that of the first and second embodiments is omitted. The stopper 83 is an example of a stopper on the sound emitting surface side.

[0082] 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 object component 50. The leaf spring fixing portion 20 is provided on the back surface 15b of the flange 15. The outer diameter of the leaf spring fixing portion 20 is substantially the same as the outer diameter OD1 of the flange 15. When viewed from the axis O direction, the inner peripheral edge portion 83b of the stopper 83, the flange 15, the leaf spring fixing portion 20, the first ring portion 31 of the leaf spring 30, and the peripheral edge portion 50b of the opening 50a of the mounting object component 50 are arranged at a position where they overlap with each other. In the third embodiment, the peripheral edge portion 50b of the mounting object component 50 has a function of suppressing displacement of the speaker unit 2.

[0083] The mounting component 80 includes a main body 81, a flange 82, and a stopper 83. The main body 81 has the same structure as the main body 41 of the first embodiment. The flange 82 extends outward from the main body 81 along the radial direction Y. The flange 82 includes a front face 82a and a back face 82b separated in the direction of the axis O. A step surface 82c and a protrusion 82d are formed on the flange 82. The step surface 82c is formed on the inner side of the protrusion 82d in the radial direction Y. The step surface 82c includes a surface orthogonal to the axis O. The protrusion 82d protrudes further toward the back side B than the step surface 82c in the direction of the axis O. The back face 82b of the flange 82 is the surface of the protrusion 82d, and is engaged with the front face 50c of the mounting object component 50. The step surface 82c is separated from the front face 50c of the mounting object component 50 in the direction of the axis O.

[0084] The second ring portion 32 of the leaf spring 30 is mounted on the step surface 82c. The leaf spring 30 is separated from the front surface 50c of the mounting target component 50 in the direction of the axis O. A gap is formed between the leaf spring 30 and the front surface 50c of the mounting target component 50. In other words, in the direction of the axis O, a gap exists between the leaf spring 30 and the peripheral edge 50b of the opening 50a.

[0085] In the speaker device 1C according to the third embodiment described above, the same effects as those of the speaker device 1 according to the first embodiment described above are achieved. 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 edge 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 back side B increases, the first ring portion 31 of the leaf spring 30 attached to the leaf spring fixing portion 20 abuts against the peripheral edge 50b. As a result, the movement of the speaker unit 2 toward the back side B is suppressed.

[0086] In the third embodiment, the peripheral edge portion 50b of the opening portion 50a of the mounting target component 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, the increase in components can be suppressed, and the displacement of the speaker unit 2 can be suppressed with a simple structure.

[0087] As described above, in the speaker device 1C according to the third embodiment, the displacement of the speaker unit 2 is suppressed, so the possibility of damage to the leaf spring 30 is reduced. In the speaker device 1C, the damage of the leaf spring 30 can be prevented and the vibration of the speaker unit 2 can be suppressed. In addition, the peripheral edge portion 50b of the opening 50a may include a portion protruding inwardly along the radial direction of the opening 50a. The portion protruding inwardly is arranged so as to overlap with a portion of the speaker unit 2 when viewed from the axis O direction. As a result, the displacement of the speaker unit 2 in the axis O direction can be suppressed.

[0088] Next, refer to Figure 7 A vehicle door (vehicle door) 100 including the speaker device 1 will be described. Figure 7 FIG. 1 is an exploded perspective view showing a vehicle door 100 having the speaker device 1 according to the embodiment. Figure 7 As shown, the vehicle door 100 includes: a first panel 102, which is called an outer panel, which is in contact with the outside; a second panel 103, which is provided as an interior trim on the vehicle compartment side of the vehicle door 100 and is called a door trim; a third panel 104, which is provided between the first panel 102 and the second panel 103 and is called an inner panel; and the speaker device 1 mounted on the third panel 104. The third panel 104 is an example of a panel component, and corresponds to the mounting target component 50.

[0089] The first panel 102 and the third panel 104 are usually made of steel plates, and their front, rear and lower outer edge portions are bonded to each other. The first panel 102 and the third panel 104 can also be made of aluminum alloy or carbon material. The second panel 103 is usually made of a synthetic resin molded plate. However, in the present invention, the constituent materials of these panels 102, 103, and 104 are not limited to the above-mentioned materials. A frame 107 is provided on the upper portion of the first panel 102 and the third panel 104 to accommodate the window glass 106 so that it can move up and down.

[0090] 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 or door lock actuator (not shown) for moving the window glass 106 up and down. In the present embodiment, at least a portion of the openings 104b is not blocked by the motor or door lock actuator (not shown), and no dedicated component for blocking the openings 104b is provided.

[0091] The outer edge of the second panel 103 is detachably fixed to the third panel 104 by the connecting parts 109X and 109Y, so that the second panel 103 is installed relative to the third panel 104. A groove-shaped gasket mounting portion is provided along the outer edge of the second panel 103, and a gasket 110 is embedded in the gasket mounting portion. The gasket 110 maintains the airtightness of the space between the second panel 103 and the third panel 104. The space is connected to the space formed between the first panel 102 and the third panel 104 through at least a portion of the opening provided in the third panel 104.

[0092] The speaker unit 2 is mounted on the third panel 104 via the mounting member 40. The mounting member 40 is fixed using screws. The vehicle door 100 may include speaker devices 1B and 1C instead of the speaker device 1.

[0093] The above-mentioned embodiments are merely representative forms of the present invention, and the present invention is not limited to the above-mentioned embodiments, and various changes and additions can be made without departing from the gist of the present invention.

[0094] In the above-mentioned embodiment, the flange 15 is exemplified as a part of the speaker unit 2 that contacts the stopper 43, but the part that contacts the stopper 43 may be another part. For example, the part that contacts the stopper 43 may be another part connected to the flange 15. The part that contacts the stopper 43 may be a part that can suppress the displacement of the speaker unit 2 by contacting the stopper 43.

[0095] In the above-mentioned embodiment, the first ring portion 31 of the leaf spring 30 is exemplified as the portion in contact with the stopper 47, but the portion in contact with the stopper 47 may be the leaf spring fixing portion 20 or another portion. For example, the portion in contact with the stopper 47 may be another portion extending outward from the speaker frame 5 in the radial direction Y. The portion in contact with the stopper 47 may be any portion as long as the portion can suppress the displacement of the speaker unit 2 by contacting with the stopper 47.

[0096] In the above-described embodiment, the plate spring 30 is arranged on the back surface side B of the flange 15 in the axis O direction. However, the plate spring 30 may be arranged on the sound emitting surface side F of the flange 15 .

[0097] In the above-described embodiment, the flange 15 is arranged on the front surface 50 c side of the mounting target component 50 in the axis O direction. However, the flange 15 may be arranged on the rear surface 50 d side of the mounting target component 50 .

[0098] In the above-described embodiment, the stoppers 43 and 47 are provided on both sides of the flange 15 in the axis O direction. However, a structure in which the stoppers are provided only on the sound emitting surface side F or the back surface side B may be adopted.

[0099] In the above-mentioned embodiment, the speaker device 1 is arranged so that the axis O is in the horizontal direction. However, the speaker device 1 may be arranged so that the axis O is in the vertical direction or so that the axis O is inclined with respect to the horizontal direction.

[0100] In the above-mentioned embodiment, the speaker device 1 is arranged in the vehicle door, but the speaker device 1 may be arranged in other parts of the vehicle. In addition, the speaker device 1 may be applied to objects other than vehicles.

[0101] In the aforementioned embodiment, the sealing member 16 for sealing the gap between the mounting member 40 and the flange 15 is described, but the sealing member 16 may also have other structures. The speaker device 1 may be a structure without the sealing member 16. The speaker device 1 may also have a sealing member for sealing the gap between other members. The speaker device 1 may also have a sealing member for sealing the gap between the leaf spring 30. The sealing member may also be formed of a rubber film having elasticity to seal the gap between the leaf spring 30. The sealing member may be arranged in the gap between the leaf spring 30, or may be arranged to cover the gap. In addition, the speaker device 1 may have a spring member that functions as a sealing member. The speaker device 1 may also have a structure having a rubber spring member that does not form a gap. The sealing member may also seal the gaps between multiple other members.

[0102] Description of the label

[0103] 1, 1B, 1C ... speaker device, 2 ... speaker unit, 3 ... diaphragm, 5 ... speaker frame, 15 ... flange (part of the speaker unit), 20 ... leaf spring fixing portion, 30, 30B ... leaf spring, 31 ... first ring portion (inner portion), 32 ... second ring portion (outer portion, stopper), 32a ... inner portion (inner edge portion), 33 ... connecting portion, 33c ... portion (protruding portion, stopper portion), 40, 70, 80 ... mounting member, 43 ... stopper (stopper on the sound emitting surface side), 4 7…Stopper (stopper on the back side), 50…Mounting object component, 50a…Opening portion, 50b…Peripheral portion (peripheral portion of the opening portion) 62…Extension portion, 73…Stopper (stopper on the sound projection surface side), 75, 77…Stopper portion, 83…Stopper (stopper on the sound projection surface side), 100…Vehicle door (door for vehicle), 104…Third panel (mounting object component, panel component), 104a…Opening portion, B…Back side, F…Sound projection surface side, O…Center axis of the speaker unit, Y…Radial direction.

Claims

1. A speaker device, comprising: Speaker unit; A mounting component for mounting the speaker unit on a mounting target component; as well as an elastic component, which is located between the speaker unit and the mounting component and supports the speaker unit, A portion of the mounting member includes a stopper extending inwardly in the radial direction of the speaker unit. The stopper overlaps a portion of the speaker unit when viewed from the center axis direction of the speaker unit. A portion of the speaker unit includes a flange extending outwardly 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.

2. The speaker device according to claim 1, wherein The elastic member is a leaf spring and is arranged such that a leaf thickness direction thereof is along a central axis direction of the speaker unit.

3. The speaker device according to claim 1 or 2, wherein: The speaker unit has a sound-emitting surface and a back surface. The stopper comprises: a stopper on the sound emitting surface side for suppressing displacement of the speaker unit in a direction from the rear surface toward the sound emitting surface; and A stopper on the rear side suppresses displacement of the speaker unit in a direction from the sound emitting surface toward the rear side.

4. A speaker device, comprising: Speaker unit; A mounting component for mounting the speaker unit on a mounting target component; as well as a leaf spring arranged so that the plate thickness direction is along the central axis direction of the speaker unit, and located between the speaker unit and the mounting member to support the speaker unit. The leaf spring includes an inner portion, which is arranged on the inner side in the radial direction of the speaker unit and fixed to the speaker unit; an outer portion, which is arranged on the outer side in the radial direction of the speaker unit and fixed to the mounting member; and a connecting portion, which connects the inner portion and the outer portion. The speaker unit comprises: a leaf spring fixing portion fixing the inner portion; and An extension portion extending outwardly from the leaf spring fixing portion in the radial direction of the speaker unit, The leaf spring includes a stopper portion extending inwardly in a radial direction of the speaker unit so as to overlap with a portion of the extending portion when viewed from a central axis direction of the speaker unit.

5. The speaker device according to claim 4, wherein The connecting portion includes a protrusion extending inward from the outer portion along the radial direction of the speaker unit. The stopper portion is the protruding portion.

6. The speaker device according to claim 4, wherein The stopper portion includes an edge portion of the outer portion located on the inner side in the radial direction of the speaker unit.

7. The speaker device according to any one of claims 4 to 6, wherein: The speaker unit has a flange extending outward in a radial direction of the speaker unit. The extension portion extends outward from the flange along the radial direction of the speaker unit. The leaf spring fixing portion protrudes from the flange along the central axis direction of the speaker unit. The leaf spring is disposed apart from the extending portion in the central axis direction of the speaker unit.

8. The speaker device according to any one of claims 4 to 6, wherein: The mounting member includes a stopper separated from the extension portion in the central axis direction of the speaker unit to the side opposite to the stopper portion and extending inwardly in the radial direction of the speaker unit so as to overlap with a portion of the extension portion when viewed from the central axis direction of the speaker unit.

9. A speaker device, comprising: a speaker unit held in an opening of a mounting target component; a mounting member for mounting the speaker unit on the mounting target member; and an elastic component, which is located between the speaker unit and the mounting component and supports the speaker unit, The elastic member is arranged in a direction of the central axis of the speaker unit and is separated from the mounting target member. A portion of the speaker unit is arranged to overlap the attachment target component when viewed from the central axis direction.

10. The speaker device according to claim 9, wherein The elastic member is a leaf spring and is arranged such that a leaf thickness direction thereof is along a central axis direction of the speaker unit.

11. The speaker device according to claim 9 or 10, wherein: A portion of the speaker unit includes a flange extending outwardly in a radial direction of the speaker unit. The outer diameter of the flange is larger than the inner diameter of the opening of the mounting object component. The flange is disposed apart from the attachment target component in the central axis direction of the speaker unit.

12. The speaker device according to claim 9 or 10, wherein: The mounting component includes a stopper that is separated from a portion of the speaker unit in a direction opposite to the peripheral edge of the opening portion in a direction of the central axis of the speaker unit and extends radially inwardly of the speaker unit in a manner overlapping with a portion of the speaker unit when viewed from the central axis of the speaker unit.

13. A vehicle door, comprising: The speaker device according to any one of claims 1 to 12; and The mounting target component having an opening formed therein, The speaker device is held in the opening.

Images