CN114919505A

CN114919505A - Speaker device and vehicle door

Info

Publication number: CN114919505A
Application number: CN202210106723.4A
Authority: CN
Inventors: 佐藤明善
Original assignee: Yamaha Corp
Current assignee: Yamaha Corp
Priority date: 2021-02-12
Filing date: 2022-01-28
Publication date: 2022-08-19
Also published as: JP2022123478A

Abstract

A speaker device (1) is provided with: a speaker unit (2); a mounting member (40) for mounting the speaker unit (2) to a mounting target member (50); and a plate spring (30) which is disposed so that the plate thickness direction thereof is along the direction of the center axis (O) of the speaker unit, is positioned between the speaker unit (2) and the mounting member (40), and supports the speaker unit (2). A part of the mounting member (40) includes a stopper (43) extending inward in the radial direction (Y) of the speaker unit (2). The stopper (43) overlaps a part of the speaker unit (2) when viewed from the direction of the center axis (O) of the speaker unit (2).

Description

Speaker device and vehicle door

Technical Field

The invention relates to a speaker device and a vehicle door.

Background

A speaker device includes: a housing in which a speaker unit is built; an installation component for installing the housing on the installation object component; and a spring member provided between the housing and the mounting member (see, for example, patent document 1).

Patent document 1: japanese patent No. 6424963 Specification

Disclosure of Invention

For example, if the displacement of the speaker unit becomes large, the spring member may be broken. In addition, the speaker device is required to suppress an increase in the number of components. The invention provides a speaker device capable of suppressing increase of the number of parts and reducing the possibility of breakage of a spring member.

The speaker device of the present invention includes: a speaker unit; a mounting member for mounting the speaker unit to a mounting target member; and an elastic member which is positioned between the speaker unit and the mounting member and supports the speaker unit. A part of the mounting member includes a stopper extending inward in a radial direction of the speaker unit. The stopper overlaps with a part of the speaker unit when viewed from the center axis direction of the speaker unit.

The speaker device of the present invention includes: a speaker unit; a mounting member for mounting the speaker unit to a mounting target member; and a plate spring which is disposed so that a plate thickness direction thereof is along a 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 which is disposed inside the speaker unit in a radial direction thereof and fixed to the speaker unit; an outer portion which is disposed outside in a radial direction of the speaker unit and fixed to the mounting member; and a connecting portion connecting the medial portion and the lateral portion. The speaker unit includes: a plate spring fixing part for fixing the inner side part; and an extending portion that extends further to the outside than the plate spring fixing portion in a radial direction of the speaker unit. The plate spring includes a stopper portion extending inward in the radial direction of the speaker unit so as to overlap a part of the extension portion when viewed from the center axis direction of the speaker unit.

The speaker device of the present invention includes: a speaker unit held in the opening of the mounting object member; a mounting member for mounting the speaker unit to a mounting target member; and an elastic member which is located between the speaker unit and the mounting member and supports the speaker unit. The elastic member is disposed apart from the member to be mounted in the central axis direction. A part of the speaker unit is disposed so as to overlap the mounting target member when viewed from the center axis direction.

The vehicle door of the present invention includes the speaker device and the mounting object member having the opening. The speaker device is held in the opening.

Drawings

Fig. 1 is a sectional view of a speaker device according to embodiment 1.

Fig. 2 is a perspective view showing the plate spring.

Fig. 3 is a partial sectional view showing the speaker device according to embodiment 2.

Fig. 4 is an enlarged plan view showing a part of a coupling portion of the leaf spring.

Fig. 5 is a plan view showing a part of a coupling portion of the leaf spring according to the modification in an enlarged manner.

Fig. 6 is a partial sectional view showing the speaker device according to embodiment 3.

Fig. 7 is an exploded perspective view showing a vehicle door having a speaker device.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the dimensions and scales of the respective portions are appropriately different from the actual dimensions and scales. The embodiments described below are specific preferred examples of the present invention. Therefore, in the present embodiment, various limitations that are technically preferable are attached. However, the scope of the present invention is not limited to these embodiments unless specifically described in the following description.

Fig. 1 is a sectional view of a speaker device 1 according to embodiment 1. The speaker device 1 shown in fig. 1 is used as a speaker device for vehicle mounting, for example, as shown in fig. 7.

The speaker device 1 can be attached to a door 100 of a vehicle via an inner panel 104, which is an attachment target member 50, for example. The application of the speaker device 1 is not limited to the vehicle-mounted application, and may be another application. The member 50 to be mounted with the speaker device 1 is not limited to the inner panel. The mounting object member 50 may be another member such as a door trim 103. An opening 50a for holding the speaker device 1 is formed in the mounting object member 50. For example, the speaker device 1 is fixed to a peripheral edge portion surrounding the opening 50a via a mounting member 40 described later.

Fig. 1 shows a state in which the speaker device 1 is inserted into the opening 50a of the mounting object member 50. The cross section shown in fig. 1 is a cross section taken along the axis O of the speaker unit 2. The axis O is a line segment parallel to the vibration direction of the diaphragm 3 described later and passing through the center of the diaphragm 3. The direction intersecting the axis O is the radial direction Y of the speaker unit 2. In the axis O direction, the side on which the diaphragm 3 is disposed is the front side, and the opposite side is the back side B. The front side is a sound reproduction surface side F. The axis O of the speaker unit 2 is an axis O of a magnetic circuit 6 described later. The vibrating plate 3 comprises a sound-emitting surface. The back surface of the speaker device 1 may be, for example, the back surface of the magnetic circuit 6, or may be a portion of the speaker frame 5 that covers the magnetic circuit 6 from the back surface side B.

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

The vibrating plate 3 is a vibrating body made of a sheet material and configured to perform sound emission by vibration. The sheet is obtained by, for example, curing or solidifying a resin material in a state of being impregnated into a fiber base material. Examples of the resin material include acrylic resin, polyurethane, melamine resin, modified rubber resin, and phenol resin. Examples of the fiber base material include carbon fibers, aramid fibers, glass fibers, ceramic fibers, silica fibers, metal fibers, potassium titanate fibers, zirconia fibers, polyacrylate fibers, polyphenylene sulfide fibers, vinylon fibers, rayon fibers, nylon fibers, polyester fibers, acrylic fibers, polypropylene fibers, polyethylene fibers, cotton fibers, hemp fibers, and cellulose fibers.

The diaphragm 3 vibrates in a direction along the axis O. The diaphragm 3 is of a cone (cone) type. The shape of the diaphragm 3 is not limited to a conical shape, and may be, for example, a dome (dome) shape.

The driving unit 4 includes a mechanism for driving the diaphragm 3 based on the input electric signal. The drive unit 4 includes: a magnetic circuit 6 that generates a magnetic field; and a voice coil 7 connected to the diaphragm 3.

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 disposed on the back side B of the diaphragm 3 in the axis O direction. 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 a magnetic material.

The magnetic flux generated from the magnet 8 passes through the yoke 9 and the center rod 10. A magnetic field is formed around the magnetic circuit 6 due to the magnetic flux passing through the magnetic circuit 6. The voice coil 7 is disposed in the magnetic field formed by the magnetic circuit 6.

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 11 b. The center cover 11b closes the front side opening of the cylindrical portion 11 a. The voice coil 7 is wound around the outer peripheral surface of the cylindrical portion 11a of the bobbin 11. The front side means a side opposite to the back side in the direction in which the axis O extends.

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

The speaker unit 2 has an edge portion 12, and the edge portion 12 has elasticity. The edge portion 12 is annular when viewed from the axis O direction 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 coupled to the speaker frame 5 via the edge portion 12.

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

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

The flange 15 extends outward in the radial direction Y from an end 13a of the conical portion 13 on the sound emission surface side F. The flange 15 is annular when viewed from the axis O direction.

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

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

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

The leaf spring fixing portion 20 may be disposed apart from the flange 15 in the axis O direction. The plate spring fixing portion 20 is not limited to a ring-shaped structure. The plate spring fixing portion 20 may be formed partially in the circumferential direction of the speaker unit 2. The plate spring fixing portion 20 may include a portion extending in the axis O direction. 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 plate spring fixing portion 20 may be disposed further inward than the flange 15 or further outward than the flange 15 in the radial direction Y of the speaker unit 2.

Fig. 2 is a perspective view showing the plate spring 30. The plate spring 30 shown in fig. 1 and 2 is located between the speaker unit 2 and the mounting object 50 in the force transmission path between the speaker unit 2 and the mounting object 50. The force transmission path between the speaker unit 2 and the mounting target member 50 includes a member to which a force for supporting the speaker unit 2 is transmitted. In the speaker device 1, a force transmission path between the speaker unit 2 and the mounting object member 50 includes the plate spring fixing portion 20, the plate spring 30, and the mounting member 40.

The plate spring 30 is a ring-shaped plate spring. The plate thickness direction of the plate spring is along the axis O direction. The plate spring 30 may be formed of metal or resin. The plate spring 30 may be formed of rubber. The leaf spring 30 may also be formed of other materials. The plate spring 30 is not limited to the annular structure, and may be configured to extend in the radial direction Y. The plate 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. The plate spring 30 may be made of any material and may have any shape as long as it is an elastic member capable of supporting the speaker unit 2. For example, it may be an O-ring or an annular viscoelastic body.

The plate spring 30 has a 1 st ring portion (inner portion) 31, a 2 nd ring portion (outer portion) 32, and a coupling portion 33. The 1 st ring portion 31 is disposed on the inner circumferential side, and the 2 nd ring portion 32 is disposed on the outer circumferential side. The inner peripheral side is on the side close to the axis O in the radial direction Y of the speaker unit 2. The outer peripheral side is on the side away from the axis O in the radial direction of the speaker unit 2. The inner peripheral side is the inner side in the radial direction Y, and the outer peripheral side is the outer side in the radial direction Y.

The connection portion 33 is disposed between the 1 st ring portion 31 and the 2 nd ring portion 32 in the radial direction Y, and connects the 1 st ring portion 31 and the 2 nd ring portion 32. The plate spring 30 has a plurality of coupling portions 33. The plate spring 30 has, for example, 4 coupling portions 33. The coupling portions 33 are separated from each other in the circumferential direction.

The coupling portion 33 includes: a portion 33a having a circular arc shape; a portion 33b connecting the portion 33a and the 1 st ring portion 31; and a portion 33c connecting the portion 33a and the 2 nd ring portion 32. The arc-shaped portion 33a has a predetermined length in the circumferential direction of the plate spring 30. A gap G1 exists between the circumferentially adjacent coupling portions 33. In the radial direction Y, there is a gap G2 between the 1 st ring portion 31 and the portion 33 a. There is a gap G3 between the 2 nd ring portion 32 and the portion 33 a. In the longitudinal direction of the arcuate portion 33a, one end is connected to the portion 33b, and the other end is connected to the portion 33 c.

As shown in fig. 1, the 1 st ring portion 31 is engaged with the leaf spring fixing portion 20, and the 2 nd ring portion 32 is engaged with the mounting member 40. The 1 st ring portion 31 is engaged with the rear surface 20b of the leaf spring fixing portion 20. The 2 nd collar portion 32 engages with the mounting member 40. The plate spring 30 may be screwed or bonded to the rear surface 20b of the plate spring fixing portion 20. The leaf spring 30 may also be engaged with the back face 20b by other methods.

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

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

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 main body 41. The flange 42 is fixed to the 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 separated in the direction of the axis O.

The mounting target member 50 is provided with an opening 50 a. The flange 42 is attached to the peripheral edge portion 50b of the opening portion 50 a. The mounting target member 50 includes a front surface 50c and a rear surface 50 d. The back surface 42b of the flange 42 is joined to the front surface 50c of the mounting target component 50.

The flange 42 is screwed to the target member 50. The flange 42 may be joined to the mounting target member 50 by other methods. The front surface 42a of the flange 42 may be joined to the rear surface 50d of the component 50 to be mounted.

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

The stopper 43 has an inner diameter smaller than the outer diameter of the flange 15 of the speaker frame 5. The stopper 43 has a base portion 43a and an inner peripheral edge portion 43 b. The base 43a of the stopper 43 is connected to the main body 41. The stopper 43 is disposed on the sound emission surface side F of the flange 15. The stopper 43 includes a front surface 43c and a rear surface 43d separated in the axis O direction. The inner peripheral edge portion 43b is separated from the front face 15a of the flange 15 in the axis O direction. In the axis O direction, a gap is formed between the front face 15a of the flange 15 and the back face 43d of the stopper 43.

The mounting member 40 has a back surface portion 45. The back surface 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 disposed at a position overlapping the main body 41 when viewed from the axis O direction. The 2 nd ring portion 32 of the plate spring 30 is disposed between the main body 41 and the support portion 46 in the axis O direction. The 2 nd ring portion 32 of the plate spring 30 is sandwiched by the support portion 46 and the main body 41 in the axis O direction. The support portion 46 is fastened to the main body 41 by a screw, for example. The support portion 46 may be bonded to the 2 nd ring portion 32 of the plate spring 30. The support portion 46 may be fixed with respect to the main body 41 by other methods.

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

The inner diameter of the stopper 47 is smaller than the outer diameter of the plate spring fixing portion 20. The stopper 47 has a base portion 47a and an inner peripheral edge portion 47 b. The base 47a of the stopper 47 is connected to the support portion 46. The stopper 47 is disposed on the rear side B of the plate spring fixing portion 20. The stopper 47 includes a front surface 47c and a rear surface 47d separated in the direction of the axis O. The inner peripheral edge 47b is separated from the back surface 20b of the leaf spring fixing portion 20 in the axis O direction. In the axis O direction, a gap is formed between the 1 st ring portion 31 of the plate spring 30 and the front face 47c of the stopper 47.

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

The speaker device 1 includes a sealing member 16 for sealing a gap between the mounting member 40 and the speaker unit 2. One end of the sealing member 16 is engaged with the flange 15. The other end of the seal member 16 is engaged with the stopper 43. The seal member 16 is a member having elasticity, and is, for example, a rubber film. The material of the sealing member 16 is not limited to rubber, and may be resin or the like. The sealing member 16 is not limited to a film shape, and may be, for example, a block shape.

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.

The plate spring 30 is connected to the speaker unit 2. The plate thickness direction of the plate spring 30 is along the axis O direction. The plate spring 30 is more easily deformed in the axis O direction than in the radial direction Y. The vibration in the axis O direction of the speaker unit 2 is damped by the plate spring 30. This makes it difficult for the vibration of the speaker unit 2 to be transmitted to the mounting member 40 and the mounting object member 50.

The speaker device 1 has a stopper 43 disposed on the sound emission surface side F of the flange 15. If the speaker unit 2 is largely displaced toward the sound emission surface side F, the flange 15 of the speaker frame 5 abuts on the stopper 43. This suppresses the movement of the speaker unit 2 to the sound emission surface side F.

The mounting member 40 of the speaker apparatus 1 includes a stopper 43. The stopper 43 may be formed as a separate member from the main body 41, but in the present embodiment, since it is formed integrally with the main body 41, the number of components is reduced. In the speaker device 1, the number of components can be reduced and the displacement of the speaker unit 2 can be suppressed. In the speaker device 1, since the stopper 43 is formed integrally with the main body 41 of the mounting member 40, the work for mounting the member to be mounted 50 is simplified. In the case where the mounting member 40 has the stopper of a separate member, the number of steps for the mounting work to the mounting object member 50 increases, but according to the speaker device 1 of the present invention, the mounting member 40 has the stopper 43, and therefore, the mounting work is simplified.

In the speaker device 1, the rear surface 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 member 50. The stopper 47 is also attached to the member 50 by attaching the attachment member 40 to the member 50.

The speaker device 1 has a stopper 47 disposed on the rear side B of the plate spring fixing portion 20. If the speaker unit 2 is largely displaced toward the back surface side B, the 1 st ring portion 31 of the plate spring 30 fixed to the back surface 20B of the plate spring fixing portion 20 abuts on the stopper 47. This suppresses the movement of the speaker unit 2 to the back surface side B.

As described above, in the speaker device 1 according to embodiment 1, since the displacement of the speaker unit 2 is suppressed, the possibility of the plate spring 30 being damaged is reduced. In the speaker device 1, the plate spring 30 is prevented from being broken, and vibration of the speaker unit 2 can be suppressed. In the speaker device 1, since the displacement of the speaker unit 2 can be suppressed within a certain range, the load applied to the plate spring 30 is reduced, and the possibility of fatigue fracture of the plate spring 30 is reduced. In the speaker device 1, the life of the plate spring 30 can be extended.

In the speaker device 1, the axis O direction extends in the horizontal direction, and the spring constant of the plate spring 30 in the axis O direction is lower than the spring constant of the plate spring 30 in the radial direction Y. Therefore, the speaker device 1 is flexible in the horizontal direction and stiff in the vertical direction. The speaker device 1 has a vertical structure suitable for arranging the axis O direction in the horizontal direction. The fact that the speaker unit 2 is flexible in the horizontal direction means that the speaker unit is easily displaced in the horizontal direction. Stiff in the vertical direction means that the speaker unit 2 is not easily displaced in the vertical direction. The speaker unit 2 is more easily displaced in the horizontal direction than in the vertical direction.

The speaker device 1 further includes a sealing member 16 for sealing a gap between the speaker unit 2 and the mounting member 40. Therefore, the sound is suppressed from entering from the back surface side B to the sound emission surface side F.

Next, a speaker device 1B according to embodiment 2 will be described with reference to fig. 3. Fig. 3 is a partial sectional view showing a speaker device 1B according to embodiment 2. The speaker device 1B according to embodiment 2 differs from the speaker device 1 according to embodiment 1 in that: has an extension 62 projecting from the flange 15 towards the outside in the radial direction Y; a mounting member 70 provided in place of the mounting member 40; and the back surface portion 45 having the stopper 47 is not provided, and the portion 33c of the plate spring 30 functions as the stopper portion 75. Note that, in the description of the speaker device 1B according to embodiment 2, the same description as that of embodiment 1 is omitted.

The speaker device 1B has an extension 62 extending outward in the radial direction Y from the flange 15. The extension 62 is integrally formed with the flange 15. The extending portion 62 is disposed outside the leaf spring fixing portion 20 in the radial direction Y. The extending portion 62 is disposed so as to overlap the coupling portion 33 of the leaf spring 30 when viewed from the axis O direction. The extending portion 62 is disposed at a position overlapping the portion 33c of the coupling portion 33.

The extension 62 is formed over the entire circumference of the flange 15 in the circumferential direction. The extension portion 62 is not limited to a structure formed over the entire circumference in the circumferential direction of the flange 15, and may be formed partially in the circumferential direction. The extension 62 may be formed integrally with the flange 15, or may be formed as a separate member from the flange 15. If the flange 15 is formed integrally, the number of components can be reduced.

The speaker device 1 has a mounting member 70 for mounting the speaker unit 2 to the mounting target member 50. The mounting member 70 has 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 embodiment 1. The flange 72 has substantially the same structure as the flange 42 of embodiment 1, and is partially different. A stepped surface 72c on which the 2 nd ring portion 32 of the leaf spring 30 is disposed is formed on the back surface 72b of the flange 72. The flange 72 may not have the stepped surface 72 c.

The stopper 73 projects inward in the radial direction Y from the main body 71. The stopper 73 is annular when viewed from the axis O direction. The stopper 73 is formed over the entire circumference 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.

The stopper 73 has an inner diameter smaller than the outer diameter of the extension 62 of the speaker frame 5. The stopper 73 has a base 73a and an inner peripheral edge 73 b. The base 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 62. The stopper 73 includes a front surface 73c and a rear surface 73d separated in the axis O direction. The inner peripheral edge 73b is separated from the front surface 62a of the extension 62 in the axis O direction. In the axis O direction, a gap is formed between the front surface 62a of the extension 62 and the rear surface 73d of the stopper 73. The stopper 73 is an example of a stopper on the sound reproduction surface side.

Fig. 4 is an enlarged plan view of a part of the coupling portion 33 of the leaf spring 30. The portion 33c of the coupling portion 33 of the leaf spring 30 shown in fig. 3 and 4 functions as a stopper portion 75. The stopper portion 75 includes a projecting portion projecting inward in the radial direction Y from the 2 nd ring portion 32. The 2 nd ring portion 32 is attached to the stepped surface 72c of the flange 72 of the mounting member 70. The 2 nd ring part 32 is sandwiched by the flange 72 and the peripheral edge part 50b of the mounting object member 50 in the axis O direction. The stopper portion 75 is disposed so as to overlap the extension portion 62 when viewed from the axis O direction. The tip 75a of the stopper 75 shown in fig. 4 is located inward of the extension 62 in the radial direction Y. The front end 75a of the stopper portion 75 is located at the innermost position in the stopper portion 75 in the radial direction Y.

The speaker device 1B has a sealing member 76 for sealing a gap between the mounting member 70 and the speaker unit 2. One end of the sealing member 76 is engaged with the flange 15. The sealing member 76 may also be coupled to the extension 62. The other end of the seal member 76 engages the stopper 73. The seal member 76 is a member having elasticity, and is, for example, a rubber film. The material of the sealing member 76 is not limited to rubber, and may be resin or the like. The sealing member 76 is not limited to a film shape, and may be, for example, a block shape.

The speaker device 1B according to embodiment 2 as described above has the same operational advantages as the speaker device 1 according to embodiment 1. The speaker device 1B has the plate spring 30, and thus the vibration of the speaker unit 2 is damped. This makes it difficult for the vibration of the speaker unit 2 to be transmitted to the mounting member 70 and the mounting object member 50.

The speaker device 1B includes an extension portion 62 disposed at a position further outside than the leaf spring fixing portion 20 in the radial direction Y, and a stopper 73 projecting to a position overlapping the extension portion 62 when viewed from the axis O direction. If the displacement of the speaker unit 2 toward the sound emission surface side F becomes large, the extension 62 of the speaker frame 5 abuts on the stopper 73. This suppresses the movement of the speaker unit 2 to the sound emission surface side F.

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, since it is formed integrally with the main body 71, the number of components is reduced. In the speaker device 1B, the number of components can be reduced and the displacement of the speaker unit 2 can be suppressed. Further, since the stopper 73 is formed integrally with the main body 71 of the mounting member 70, the work for mounting the member to be mounted 50 can be simplified.

The speaker device 1B has a stopper portion 75 that protrudes to a position overlapping with the extension portion 62 when viewed from the axis O direction. In the speaker device 1B, a portion 33c which is a part of the connection portion 33 of the plate spring 30 functions as a stopper portion 75. If the displacement of the speaker unit 2 toward the back surface side B becomes large, the extension 62 abuts against the stopper portion 75. This suppresses the movement of the speaker unit 2 to the back surface side B.

As described above, in the speaker device 1B according to embodiment 2, since the displacement of the speaker unit 2 is suppressed, the possibility of the plate spring 30 being damaged is reduced. In the speaker device 1B, the plate spring 30 is prevented from being damaged, and vibration of the speaker unit 2 can be suppressed.

Next, a leaf spring 30B including a stopper 77 according to a modification will be described with reference to fig. 5. The plate spring 30B shown in fig. 5 is different from the plate spring 30 of the speaker device 1B according to embodiment 2 in that a portion 32a on the inner side in the radial direction Y of the 2 nd ring part 32 functions as a stopper 77. Note that, in the description of the modification, the same description as that of the speaker devices 1 and 1B according to embodiment 1 and embodiment 2 is omitted.

In fig. 5, the opening 50a of the mounting object member 50 is indicated by a broken line. The plate 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 disposed inside the portion 32b in the radial direction Y. The portion 32a is disposed inside the opening 50a, and the portion 33b is disposed outside the opening 50 a.

The portion 32a protrudes inward of the opening 50a when viewed from the axis O direction. The portion 32a is disposed so as to overlap the extension 62 shown in fig. 3 when viewed from the axis O direction. The outer diameter of the extension portion 62 is larger than the inner diameter of the 2 nd ring portion 32 of the plate spring 30B.

The portion 32a of the 2 nd ring portion 32 of the plate spring 30B as described above is an example of an inner edge portion functioning as the stopper portion 77. The plate spring 30B includes

stopper portions

75, 77. The speaker device 1B may have a plate spring 30B instead of the plate spring 30. In the speaker device 1B having the plate spring 30B as described above, if the speaker unit 2 is largely displaced toward the back surface side B, the extending portion 62 abuts on the

stopper portions

75, 77. This suppresses the movement of the speaker unit 2 toward the back surface side B.

The leaf springs 30, 30B may also include other portions that function as stopper portions. For example, the gap G1 between the circumferentially adjacent coupling portions 33 may have a projection extending inward in the radial direction Y from the 2 nd ring portion 32. The protruding portion is formed so as to overlap the extending portion 62 when viewed from the direction of the axis O. The projection as described above functions as a stopper portion.

Next, a speaker device 1C according to embodiment 3 will be described with reference to fig. 6. Fig. 6 is a partial sectional view showing a speaker device 1C according to embodiment 3. The speaker device 1C according to embodiment 3 is different from the speaker device 1 according to embodiment 1 in that: the rear surface portion 45 having the stopper 47 is not provided, and the peripheral edge portion 50b of the opening 50a of the attachment target member 50 has a function of suppressing displacement of the speaker unit 2; and a differently configured mounting member 80 having a flange 82 in place of the mounting member 40. The mounting member 80 has a stopper 83 having the same structure as the stopper 43 of embodiment 1. In the description of embodiment 3, the same descriptions as those of embodiments 1 and 2 are omitted. The stopper 83 is an example of a sound reproduction surface side stopper.

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 member 50. The leaf spring fixing portion 20 is provided on the back surface 15b of the flange 15. The outer diameter of the plate spring fixing portion 20 is substantially the same as the outer diameter OD1 of the flange 15. The inner peripheral edge 83b of the stopper 83, the flange 15, the leaf spring fixing portion 20, the 1 st ring portion 31 of the leaf spring 30, and the peripheral edge 50b of the opening 50a of the attachment target member 50 are disposed at positions overlapping each other when viewed from the axis O direction. In embodiment 3, the peripheral edge portion 50b of the attachment target member 50 has a function of suppressing displacement of the speaker unit 2.

The mounting member 80 has 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 embodiment 1. The flange 82 projects outward from the main body 81 in the radial direction Y. The flange 82 has a front surface 82a and a back surface 82b separated in the axis O direction. The flange 82 is formed with a stepped surface 82c and a projecting portion 82 d. A step surface 82c is formed inside the projecting portion 82d in the radial direction Y. The step surface 82c includes a surface orthogonal to the axis O. The projecting portion 82d projects toward the back side B in the axis O direction than the step surface 82 c. The back surface 82b of the flange 82 is a surface of the projection 82d, and is joined to the front surface 50c of the mounting target component 50. The stepped surface 82c is separated from the front surface 50c of the mounting target member 50 in the axis O direction.

The 2 nd ring portion 32 of the plate spring 30 is attached to the stepped surface 82 c. The plate spring 30 is separated from the front surface 50c of the mounting object member 50 in the axis O direction. A gap is formed between the plate spring 30 and the front surface 50c of the mounting object member 50. In other words, a gap exists between the plate spring 30 and the peripheral edge portion 50b of the opening portion 50a in the axis O direction.

The speaker device 1C according to embodiment 3 also has the same operational advantages as the speaker device 1 according to embodiment 1. 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 attachment target member 50, the peripheral edge 50b of the opening 50a has a function of suppressing displacement of the speaker unit 2. In the speaker device 1C, if the speaker unit 2 is largely displaced toward the back surface side B, the 1 st ring portion 31 of the plate spring 30 attached to the plate spring fixing portion 20 abuts on the peripheral edge portion 50B. This suppresses the movement of the speaker unit 2 to the back surface side B.

In embodiment 3, the peripheral edge portion 50b of the opening 50a of the attachment target member 50 suppresses displacement of the speaker unit 2. Therefore, it is not necessary to provide a separate stopper on the back side B of the plate spring 30. In embodiment 3, the displacement of the speaker unit 2 can be suppressed with a simple structure while suppressing the increase in components.

As described above, in the speaker device 1C according to embodiment 3, since the displacement of the speaker unit 2 is suppressed, the possibility of the plate spring 30 being damaged is reduced. In the speaker device 1C, the plate spring 30 is prevented from being damaged, and vibration of the speaker unit 2 can be suppressed. The peripheral edge portion 50b of the opening 50a may include a portion protruding inward in the radial direction of the opening 50 a. The inwardly protruding portion is disposed so as to overlap a part of the speaker unit 2 in the direction of the axis O. This can suppress displacement of the speaker unit 2 in the axis O direction.

Next, a vehicle door (vehicle door) 100 having the speaker device 1 will be described with reference to fig. 7. Fig. 7 is an exploded perspective view showing a vehicle door 100 having the speaker device 1 according to the embodiment. As shown in fig. 7, the vehicle door 100 includes: a 1 st panel 102 called an outer panel which is contiguous to the outside; a 2 nd panel 103, which is provided as an interior trim on the vehicle compartment side in the vehicle door 100 and is referred to as a door trim; a 3 rd panel 104, called an inner panel, disposed between the 1 st panel 102 and the 2 nd panel 103; and a speaker device 1 mounted on the 3 rd panel 104. The 3 rd panel 104 is an example of a panel member, and corresponds to the mounting target member 50.

The 1 st panel 102 and the 3 rd panel 104 are generally made of steel plates, and their front, rear, and lower peripheral portions are bonded to each other. The 1 st panel 102 and the 3 rd panel 104 can also use an aluminum alloy or a carbon material. The 2 nd panel 103 is generally formed of a synthetic resin. However, in the present invention, the material constituting these

panels

102, 103, and 104 is not limited to the above-described material. A frame 107 for vertically movably housing the window glass 106 is provided above the 1 st panel 102 and the 3 rd panel 104.

The 3 rd panel 104 is provided with an opening 104a (opening 50a) for housing the speaker device 1, and a plurality of openings 104b for housing a motor, a door lock actuator, and the like (not shown) for moving the window glass 106 up and down. In the present embodiment, at least a part of the opening 104b is not closed by a motor, a door lock actuator, or the like, which is not shown, and a dedicated member for closing the opening 104b is not provided.

The 2 nd panel 103 is attached to the 3 rd panel 104 by detachably fixing the outer edge portion of the 2 nd panel 103 to the 3 rd panel 104 by the

coupling members

109X and 109Y. A groove-like gasket attachment portion is provided along an outer edge portion of the 2 nd panel 103, and a gasket 110 is fitted in the gasket attachment portion, and the gasket 110 maintains airtightness of a space between the 2 nd panel 103 and the 3 rd panel 104. The space and the space formed between the 1 st panel 102 and the 3 rd panel 104 communicate with each other through at least a part of the opening provided in the 3 rd panel 104.

The speaker unit 2 is attached to the 3 rd panel 104 via the attachment 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.

The above-described embodiments are merely representative embodiments of the present invention, and the present invention is not limited to the above-described embodiments, and various modifications and additions can be made without departing from the scope of the present invention.

In the above-described embodiment, the flange 15 is illustrated 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 portion in contact with the stopper 43 may be other portion connected to the flange 15. The portion in contact with the stopper 43 may also be a portion capable of suppressing displacement of the speaker unit 2 by being in contact with the stopper 43.

In the above-described embodiment, the 1 st ring portion 31 of the leaf spring 30 is illustrated as the portion that contacts the stopper 47, but the portion that contacts the stopper 47 may be the leaf spring fixing portion 20 or may be another portion. For example, the portion that contacts the stopper 47 may be another portion that protrudes outward in the radial direction Y from the speaker frame 5. The portion in contact with the stopper 47 may be any portion that can suppress the displacement of the speaker unit 2 by coming into contact with the stopper 47.

In the above-described embodiment, the case where the plate spring 30 is disposed on the back surface side B of the flange 15 in the axis O direction is exemplified, but the plate spring 30 may be disposed on the sound emission surface side F of the flange 15.

In the above-described embodiment, the case where the flange 15 is disposed on the front surface 50c side of the mounting object member 50 in the axis O direction has been exemplified, but the flange 15 may be disposed on the rear surface 50d side of the mounting object member 50.

In the above-described embodiment, the case where the

stoppers

43 and 47 are provided on both sides of the flange 15 in the axis O direction has been exemplified, but the stopper may be provided only on the sound emission surface side F or the rear surface side B.

In the above-described embodiment, the case where the axis O is arranged in the horizontal direction was described, but the speaker device 1 may be arranged such that the axis O is in the vertical direction, or the speaker device 1 may be arranged such that the axis O direction is inclined with respect to the horizontal direction.

In the above-described embodiment, the speaker device 1 is shown as being disposed in the vehicle door, but the speaker device 1 may be disposed in other portions of the vehicle. The speaker device 1 may be applied to an article other than a vehicle.

In the above-described embodiment, the seal member 16 for sealing the gap between the mounting member 40 and the flange 15 has been described, but the seal member 16 may have another structure. The speaker device 1 may have a structure without the sealing member 16. The speaker device 1 may have a sealing member for sealing a gap between other members. The speaker device 1 may have a sealing member for sealing a gap of the plate spring 30. The sealing member may be formed of a stretchable rubber film to seal the gap between the leaf springs 30. The sealing member may be disposed in the gap of the plate spring 30, or may be disposed to cover the gap. In addition, the speaker device 1 may have a spring member functioning as a sealing member. The speaker device 1 may have a structure having a spring member made of rubber without forming a gap. The sealing member may seal a gap between other members.

Description of the reference numerals

1. 1B, 1C … speaker device, 2 … speaker unit, 3 … diaphragm, 5 … speaker frame, 15 … flange (part of speaker unit), 20 … plate spring fixing portion, 30B … plate spring, 31 … first ring portion (inner portion), 32 … second ring portion (outer portion, retainer), portion inside 32a … (edge portion inside), 33 … connecting portion, 33C … portion (projecting portion, retainer portion), 40, 70, 80 … mounting part, 43 … retainer (retainer on sound emitting surface side), 47 … retainer (retainer on back surface side), 50 … mounting object part, 50a … opening portion, 50B … peripheral portion (peripheral portion of opening portion) 62 … extending portion, 73 … retainer on sound emitting surface side, 75, 77 … retainer portion, 83 … (retainer on sound emitting surface side), 100 … vehicle door (vehicle door), 104 … rd panel 3 (mounting object member, panel member), 104a … opening, B … back side, F … sound emission surface side, center axis of O … speaker unit, Y … radial.

Claims

1. A speaker device has:

a speaker unit;

a mounting member for mounting the speaker unit to a mounting target member; and

an elastic member that is located between the speaker unit and the mounting member and supports the speaker unit,

a part of the mounting part includes a stopper extending inward in a radial direction of the speaker unit,

the stopper overlaps with a part of the speaker unit when viewed from a center axis direction of the speaker unit.

2. The speaker device of claim 1,

the elastic member is a plate spring, and is disposed so that a plate thickness direction thereof is along a central axis direction of the speaker unit.

3. The speaker device according to claim 1 or 2,

a part of the speaker unit includes a flange projecting outward in a radial direction of the speaker unit,

the stopper is disposed apart from the flange in a center axis direction of the speaker unit.

4. The speaker device according to any one of claims 1 to 3,

the loudspeaker unit has a sound-emanating face and a rear face,

the stopper includes:

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

and a stopper on the back side for suppressing displacement of the speaker unit in a direction from the sound emitting surface to the back surface.

5. A speaker device has:

a speaker unit;

a plate spring disposed so that a plate thickness direction thereof is along a central axis direction of the speaker unit, located between the speaker unit and the mounting member, and supporting the speaker unit,

the plate spring has: an inner portion that is disposed inside the speaker unit in a radial direction thereof and is fixed to the speaker unit; an outer portion that is disposed outside in a radial direction of the speaker unit and is fixed to the mounting member; and a coupling portion that couples the medial portion and the lateral portion,

the speaker unit includes:

a plate spring fixing portion fixing the inner portion; and

an extension portion protruding outward in a radial direction of the speaker unit than the plate spring fixing portion,

the plate spring includes a stopper portion extending inward in a radial direction of the speaker unit so as to overlap a part of the extension portion when viewed from a central axis direction of the speaker unit.

6. The speaker device of claim 5,

the coupling portion includes a protruding portion protruding inward from the outer portion in a radial direction of the speaker unit,

the stopper portion is the projection.

7. The speaker device of claim 5,

the stopper portion includes a radially inner edge of the speaker unit of the outer portion.

8. The speaker arrangement according to any one of claims 5 to 7,

the speaker unit has a flange projecting outward in a radial direction of the speaker unit,

the extension portion protrudes outward from the flange in a radial direction of the speaker unit,

the plate spring fixing portion protrudes from the flange in a central axis direction of the speaker unit,

the plate spring is disposed away from the extending portion in the center axis direction of the speaker unit.

9. The speaker arrangement according to any one of claims 5 to 8,

the mounting member includes a stopper that is separated from the extension portion toward the opposite side of the stopper portion in the center axis direction of the speaker unit, and extends inward in the radial direction of the speaker unit so as to overlap with a part of the extension portion when viewed from the center axis direction of the speaker unit.

10. A speaker apparatus, comprising:

a speaker unit held in the opening of the mounting object member;

a mounting member for mounting the speaker unit to the mounting target member; and

an elastic member which is located between the speaker unit and the mounting member and supports the speaker unit,

the elastic member is disposed apart from the member to be mounted in the central axis direction,

a part of the speaker unit is disposed so as to overlap the mounting target member when viewed from the center axis direction.

11. The speaker device of claim 10,

12. The speaker device according to claim 10 or 11,

the flange has an outer diameter larger than an inner diameter of the opening of the member to be mounted,

the flange is disposed apart from the member to be mounted in a center axis direction of the speaker unit.

13. The speaker arrangement according to any one of claims 10 to 12,

the mounting member includes a stopper that is separated from a portion of the speaker unit in a central axis direction of the speaker unit on a side opposite to a peripheral edge portion of the opening, and extends inward in a radial direction of the speaker unit so as to overlap the portion of the speaker unit when viewed from the central axis direction of the speaker unit.

14. A vehicle door includes:

the speaker arrangement of any one of claims 1 to 13; and

the component to be mounted having an opening formed therein,

the speaker device is held in the opening.