JPH08186887A - Speaker and mounting structure of speaker - Google Patents

Abstract

PURPOSE: To reduce the member cost, assembling cost and mounting cost by reducing component members and to make a speaker light in weight by preventing the leakage or the sound outputted from the speaker in a lateral direction by the projecting part of an edge and an elastic body. CONSTITUTION: An edge 12 is formed into an annulus ring shape by the supporting member of a diaphragm 11, and a seal part 13 preventing the lateral leakage of the sound outputted from a speaker 10 is integrally formed with the edge 12 on the outer periphery part. In the seal part 13, grooves 14 are formed all over the peripheries to weaken the elastic intensity and make it easy to fit to an opposite member, and the shapes of the grooves 14 and the number of the grooves 14 are determined by the shape and material, etc., of the seal part 13. Because the elastic projecting part which is integrally formed with the edge 12 and the elastic body provided on this projecting part form a wall all over the outer peripheries of the front opening part of the speaker, the leakage of the sound outputted from the speaker 10 in the lateral direction is prevented. Because the edge 12 and the elastic projecting part are integrally formed, the number of component parts is reduced and cost is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker structure and a speaker mounting structure, and more particularly to a gasketless speaker and a spacerless mounting structure for mounting a speaker.

[0002]

2. Description of the Related Art A conventional speaker structure and a speaker mounting structure will be described with reference to FIGS. FIG. 5 is a sectional view showing a structure of a general vehicle-mounted speaker, and FIG. 6 is a sectional view showing a mounting structure of the vehicle-mounted speaker. First, the structure of the in-vehicle speaker will be described.

A speaker 70 is composed of a magnetic circuit section, a vibrating section, a frame and the like. The vibrating section is composed of a diaphragm (body), a voice coil, a voice coil bobbin, and the like. 71 is a diaphragm, and voice coil 73
Vibration that is converted from mechanical input into mechanical vibration is emitted as sound corresponding to the input signal, and pulp or resin is used as the material. The diaphragm 71 has a central portion bonded and fixed to one end of a cylinder of the voice coil bobbin 74, an outer peripheral portion bonded to an inner peripheral portion of an edge 72 described later, and an outer peripheral portion of the edge 72 bonded to an adhesive portion 76 of the frame 75. It is fixed. Further, in the voice coil bobbin 74 to which the diaphragm 71 is fixed, the outer periphery of the voice coil bobbin 74 is adhered to the inner peripheral portion of the damper 77, and the damper 77
Since the outer peripheral portion of the diaphragm 71 is adhered to the adhesive portion 78 of the frame 75, the diaphragm 71 is connected and fixed in a suspended state by the edge 72 and the damper 77.

The edge 72 is a support member for the diaphragm 71, and has an annular shape. The inner peripheral portion of the edge 72 is adhesively fixed to the outer peripheral portion of the diaphragm 71, and the outer peripheral portion is adhesively fixed to the adhesive portion 76 of the frame 75. And supports the diaphragm 71. still,
A urethane material or the like is molded and used as the material. Reference numeral 79 denotes a gasket, which has a ring shape and is a member for preventing the sound output from the speaker from leaking in the lateral direction. The gasket 79 is adhesively fixed onto the outer peripheral portion of the edge 72 adhesively fixed to the frame 75. As the material, paper, a resin material, or the like is formed into an annular shape and used.

The front cushion 80 has an annular shape and is adhered to the front end portion 81 of the gasket 79, and when the speaker is attached to the vehicle, the rib 8 for sealing the interior trim 82 of the vehicle is used.
The front end portion 84 of No. 3 is embedded in the front cushion 80 to prevent the sound output from the speaker from leaking laterally.
Since urethane foam or the like is used as the material, even if the sealing rib 83 of the interior trim (door interior member of the door) 82 has some dimensional variation, sound leaks only by slightly changing the depth of the embedding. Can be sealed. Frame 7
A member 5 holds the magnetic circuit portion and the vibrating portion. The vibrating portion 5 is held inside the frame 75, and the magnetic circuit portion is adhesively fixed to the rear portion (downward in the drawing). As the material, rolled steel plate, aluminum die cast, resin material and the like are used.

Next, a speaker mounting structure will be described with reference to FIG. FIG. 7 is a sectional view showing the mounting structure of the vehicle-mounted speaker. The same components as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted. Reference numeral 86 is a spacer, for example, when the speaker 70 is mounted in a limited space such as the inside of a vehicle door, the interior trim 82 and the vehicle body (inner plate) 9
3 is a member used as a spacing member when the distance from the position of the mounting hole 94 of No. 3 does not match the dimensions of the mounting surface 95 of the frame 71 of the speaker 70 and the front cushion 80. The speaker 70 is inserted into the mounting space, and a mounting hole 88 for mounting the speaker 70 on the front face portion 87 of the spacer 86 and a mounting hole 90 for the vehicle body 93 are formed on the rear face portion 89. A resin material or the like is used as the material and is formed by resin molding.

An example of mounting the speaker on the vehicle door will be described. First, the mounting hole 85 of the speaker 70 and the mounting hole 88 of the front surface portion 87 of the spacer 86 are aligned with each other, and the speaker 70
From the side, the screw 91 is inserted and the speaker 70 and the spacer 86 are fixed by screwing. Next, the mounting hole 90 of the rear surface portion 89 of the spacer 86 integrated with the speaker 70 and the vehicle body 9
The mounting holes 94 of No. 3 are aligned with each other, the screws 92 are inserted from the side of the spacer 86, and the spacer 86 is screwed and fixed to the vehicle body 93.

Next, the tip 84 of the sealing rib 83 of the interior trim 82 is brought into contact with the front cushion 80 of the speaker 70 from the vehicle interior direction, and the interior trim 82 is fixed to the vehicle body by screwing or clipping. To do.

[0009]

However, in the above-described speaker 70, the gasket 79, the front cushion 80, etc. are used in the seal structure for preventing the output sound from leaking in the lateral direction. Assembly costs are relatively high. Also, regarding the installation of the speaker, the speaker 7
In some cases, a spacer 86 for adjusting the position of 0 may be required, resulting in a high material cost, assembly cost, and the like. Further, there is a problem that the weight corresponding to the spacer 86 becomes heavy.

Therefore, the present invention is intended to solve the above-mentioned problems, and it is an object of the present invention to reduce the member cost, the assembly cost, the mounting cost, and the like by reducing the number of constituent members, and to further reduce the weight of the speaker.

[0011]

The present invention achieves the above-mentioned object, and in the structure of a speaker, the outer periphery of the diaphragm of the speaker and the outer periphery of the edge that is adhered to the frame and holds the diaphragm on the frame. An elastic protrusion formed integrally with the edge and an elastic body provided on the protrusion so as to protrude in the opening direction of the speaker, and the protrusion of the edge and the elastic body. Thus, the sound output from the speaker is prevented from leaking in the lateral direction.

Further, the invention is characterized in that a seal portion composed of the elastic convex portion and the elastic body is formed integrally with the edge. Also, an engaging groove that is provided over the entire circumference of the seal portion on the front opening side of the speaker and that engages with a front member provided on the front surface of the speaker, and an elasticity formed in the opening direction from the bottom of the seal portion. A groove is provided.

Also, in the structure of the speaker, a convex portion is formed so as to project in the opening direction of the speaker over the entire outer peripheral portion of the frame of the speaker, and the convex portion projects in the opening direction of the speaker. It is characterized in that the sound output from the speaker is prevented from leaking in the lateral direction by the convex portion of the frame and the elastic body.

Further, in a speaker mounting structure for fixing a speaker at a predetermined position, a fixing member for fixing the speaker and a mounting partner member of the speaker is fixed to the frame of the speaker so as to fix the speaker at the predetermined position. It is characterized by being integrally formed with.

[0015]

According to the present invention, since the elastic convex portion integrally formed with the edge and the elastic body provided on the elastic convex portion form a wall over the entire outer peripheral portion of the front opening of the speaker, the speaker Prevents the sound output from the device from leaking laterally. In addition, since the edge and the elastic protrusion are integrally formed, the number of constituent parts can be reduced and the cost can be reduced.

According to the second aspect of the invention, since the seal portion, in which the elastic convex portion and the elastic body are integrated, is formed integrally with the edge, the sound leakage prevention effect is enhanced. Further, the number of constituent parts is reduced, and the cost can be significantly reduced. According to the third invention, the mating member engages with the engaging groove formed in the opening in the front surface of the seal portion, and the elastic strength of the seal portion is increased by the elastic groove formed in the bottom portion of the seal portion. Since it is weakened, the mating member and the seal portion are easily fitted to each other and the engaged state is improved.

According to the fourth aspect of the invention, the convex portion formed in the opening portion of the speaker frame so as to project in the opening direction, and the elastic body provided on the convex portion make the entire outer peripheral portion of the front opening portion of the speaker. Since the wall is formed over the circumference, the sound output from the speaker is prevented from leaking in the lateral direction. Moreover, since the seal portion is formed on the frame, the number of constituent parts can be reduced and the cost can be significantly reduced.

According to the fifth aspect of the invention, the fixing member is integrally formed with the frame of the speaker so as to overlap the speaker and the mounting counterpart member of the speaker at a predetermined position. It can be mounted directly, eliminating the need for a mounting position adjustment member.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A speaker structure and a speaker mounting structure of the present invention will be described. First, the structure of a vehicle-mounted speaker will be described as an embodiment of the speaker of the present invention. still,
The present invention eliminates the gasket or front cushion formed on the front surface of the speaker, and is otherwise basically the same as the conventional speaker. Therefore, in the following description, the vibration directly related to the present invention will be described. The parts and the front part will be mainly described.

A first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a sectional view showing the structure of a vehicle-mounted speaker.
Reference numeral 10 denotes a speaker, which is composed of a magnetic circuit section, a vibrating section, a frame, and the like. The vibrating section is composed of a diaphragm (body), a voice coil, a voice coil bobbin, and the like.

Reference numeral 11 denotes a diaphragm, which radiates vibrations converted from electrical input signals input to the voice coil 19 into mechanical vibrations as sound corresponding to the input signals, and pulp or resin is used as the material. . The diaphragm 11 has a central portion bonded and fixed to one end of a cylinder of the voice coil bobbin 18, and an outer peripheral portion bonded to an inner peripheral portion of an edge 12 described later,
The outer peripheral portion of the edge 12 is adhesively fixed to the frame 16. Further, in the voice coil bobbin 18 to which the diaphragm 11 is fixed, the outer periphery of the voice coil bobbin 18 is adhered to the inner peripheral portion of the damper 23, and the outer peripheral portion of the damper 23 is adhered to the adhesive portion 17 of the frame 16. , Diaphragm 11
Are connected and fixed in a suspended state by the edge 12 and the damper 23.

The edge 12 is a support member for the diaphragm 11, and has a ring-shaped sealing portion (corresponding to a conventional gasket) 13 that prevents the sound output from the speaker from leaking laterally on the outer peripheral portion. It is formed integrally with 12. A groove 14 is formed over the entire circumference of the seal portion 13 in order to weaken the elastic strength and make it easier to fit the mating member.
The shape of the groove 14 and the number of the grooves 14 are determined by the shape and material of the seal portion 13. The inner peripheral portion of the edge 12 is the diaphragm 1
1 is adhered and fixed to the outer peripheral portion of the frame 1, and the outer peripheral portion is adhered and fixed to the adhesive portion 24 of the frame 16 to support the diaphragm 11. In addition, the edge 12 and the seal portion 13 are integrally molded and used for the material, such as a urethane material.

The front cushion 25 has an annular shape and is adhered to the tip portion 15 of the seal portion 13 of the edge 12. Interior trim of the vehicle when installing the speaker in the vehicle 2
The front end portion 22 of the sealing rib 21 of 0 is the front cushion 2
The sound output from the speaker is prevented from leaking in the lateral direction by being embedded in No. 5. Since urethane foam or the like is used as the material, sound leakage can be sealed only by slightly changing the depth of the embedding even if the sealing rib 21 of the interior trim 20 has some dimensional variations. .

The frame 16 is a member for holding the magnetic circuit portion and the vibrating portion. The vibrating portion is held inside the frame 16, and the magnetic circuit portion is adhesively fixed to the rear portion (downward in the drawing). As the material, rolled steel plate, aluminum die cast, resin material and the like are used. As described above, according to the present embodiment, since the edge 12 and the seal portion 13 are integrally formed, the gasket used in the related art is no longer required, and the number of constituent parts of the front surface of the speaker can be reduced.
Therefore, the material cost of the gasket, the number of assembling steps, etc. can be reduced, and the cost can be significantly reduced.

A second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a partial cross-sectional view showing the structure of the vehicle-mounted speaker. The present invention is a modification of the edge 12 of the first embodiment, and since the other points are substantially the same as those of the first embodiment, the same components are designated by the same reference numerals and the description thereof will be omitted. Reference numeral 29 denotes an edge, which is a support member of the diaphragm 11, and has a ring-shaped sealing portion (corresponding to a conventional gasket and front cushion) 26 that prevents the sound output from the speaker from leaking laterally in the outer peripheral portion. It is formed integrally with the portion 29. A groove 27 with which the tip end 22 of the sealing rib 21 of the vehicle interior trim 20 is engaged is formed on the upper portion of the seal portion 26 over the entire circumference. Further, a groove 28 is formed in the lower portion of the seal portion 26 over the entire circumference in order to weaken the elastic strength, and the shape of the groove 28 and the number of the grooves 28 may be determined depending on the shape and material of the seal portion 26. The inner peripheral portion of the edge 12 is adhesively fixed to the outer peripheral portion of the diaphragm 11, and the outer peripheral portion is adhesively fixed to the adhesive portion 24 of the frame 16 to support the diaphragm 11. As the material, a urethane material is used for the edge portion, a soft rubber is used for the sealing portion, a urethane material is used for the edge portion, a urethane foam material is used for the sealing portion, or both the edge portion sealing portion is made of urethane material or soft rubber. 26 is integrally molded and used.

As described above, in this embodiment, since the gasket 26 used conventionally and the seal portion 26 having the function of the front cushion are integrally formed with the edge 12, the gasket used conventionally is No front cushion is required, and the number of components on the front of the speaker can be reduced. Therefore, the cost of members for the gasket and the front cushion, the number of assembling steps, and the like can be reduced, and the cost can be significantly reduced.

A third embodiment of the present invention will be described with reference to FIG. FIG. 3 is a sectional view showing the structure of a vehicle-mounted speaker.
Incidentally, the present invention is a modification of the frame 16 of the first embodiment, and other points are substantially the same as those of the first embodiment.
The same components are designated by the same reference numerals and the description thereof will be omitted. The frame 30 is a member that holds the magnetic circuit portion and the vibrating portion. The vibrating portion is held inside the frame 30, and the magnetic circuit portion is adhesively fixed to the rear portion (downward in the drawing). Frame 30
A seal portion 31 (corresponding to a conventional gasket) that protrudes forward (upward in the drawing) from the outer periphery of the adhesive portion 34 of the edge 33 is formed over the entire front opening of the seal portion 31. A front cushion 25 is adhered to this to form a seal portion that prevents the sound output from the speaker from leaking laterally. As the material, rolled steel plate, aluminum die cast, resin material and the like are used.

The edge 33 is a support member for the diaphragm 11, and has an annular shape. The inner peripheral portion is adhered and fixed to the outer peripheral portion of the diaphragm 11, and the outer peripheral portion is adhered and fixed to the adhesive portion 34 of the frame 30. , Supports the diaphragm 11. A urethane material or the like is used as the material. As described above, according to this embodiment, since the seal portion 31 is integrally formed with the frame 30, the conventionally used gasket is no longer necessary, and the number of constituent parts of the front surface of the speaker can be reduced. Therefore, the material cost of the gasket, the number of assembling steps, and the like can be reduced, and the cost can be significantly reduced.

Next, a vehicle door speaker mounting structure will be described as an embodiment of the speaker mounting structure of the present invention. It should be noted that the present invention is the one in which the shape of the speaker frame is changed and the spacer used when mounting the speaker is deleted, and the other features are basically the same as the conventional speaker mounting structure. The frames that are directly related are mainly explained.

An embodiment of the present invention will be described with reference to FIG.
FIG. 4 is a cross-sectional view showing the mounting structure of the vehicle-mounted speaker.
Reference numeral 40 denotes a speaker frame, which is a member for holding the magnetic circuit portion and the vibrating portion. The vibrating portion is held inside the frame 40, and the magnetic circuit portion is adhesively fixed to the rear portion (downward in the drawing). An attachment portion 41 to the vehicle body 50 is formed integrally with the frame 40 toward the rear (downward in the drawing) on the outer periphery of the frame 40, and an attachment hole 42 to the body 50 is formed in the attachment portion 41. As the material, rolled steel plate, aluminum die cast, resin material and the like are used.

An example of mounting the speaker on the vehicle door will be described. First, the mounting hole 42 of the speaker 10 is formed in the vehicle body 5
Aligning the position of the mounting hole 51 of 0, the screw 55 is inserted from the speaker 10 side, and the speaker 10 is screwed and fixed to the vehicle body 50. Next, the tip 22 of the sealing rib 21 of the interior trim 20 is brought into contact with the front cushion 25 of the speaker 10 from the vehicle interior direction, and the interior trim 20 is fixed to the vehicle body 50 by screwing or clipping.

As described above, according to this embodiment,
By forming the attachment member of the speaker frame 50 to the vehicle body 50 integrally with the speaker frame 40,
When the speaker 10 is attached to the door of a vehicle, a spacer or the like that has been conventionally used is not required, and it is possible to reduce the member cost, the assembly cost, the installation cost, and the weight corresponding to the spacer.

[0033]

As described above, according to the present invention,
A seal structure with a cushion and a gasket to prevent the sound output from the speaker from leaking laterally, and simplification of components such as a spacer for adjusting the position of the speaker, which was necessary for mounting the speaker, or It is possible to reduce the cost of materials, assembly costs, installation costs, etc.
Further, the weight of the speaker can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view showing the structure of a vehicle-mounted speaker according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing the structure of a vehicle-mounted speaker according to a second embodiment of the present invention.

FIG. 3 is a partial cross-sectional view showing the structure of a vehicle-mounted speaker according to a third embodiment of the present invention.

FIG. 4 is a sectional view showing a mounting structure of a vehicle-mounted speaker according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view showing a structure of a conventional vehicle-mounted speaker.

FIG. 6 is a cross-sectional view showing a conventional mounting structure for a vehicle-mounted speaker.

[Explanation of symbols]

 10 ... Speaker 11 ... Vibration plate 12, 29, 33 ... Edge 13, 26, 31 ... Seal part 16, 30, 40 ... Frame 20 ...・ ・ ・ Interior trim 21 ・ ・ ・ Sealing rib 25 ・ ・ ・ Front cushion 50 ・ ・ ・ Vehicle body

Claims (5)

[Claims] 1. A structure of a speaker, comprising: an elastic convex portion integrally formed with the edge over the entire outer peripheral portion of an edge that is adhered to the outer periphery of the diaphragm of the speaker and holds the diaphragm on the frame. An elastic body provided on the convex portion so as to project in the opening direction of the speaker, and the convex portion of the edge and the elastic body prevent the sound output from the speaker from leaking in the lateral direction. A speaker characterized by being prevented. 2. The speaker according to claim 1, wherein a seal portion composed of the elastic convex portion and the elastic body is formed integrally with the edge. 3. An engaging groove formed on the entire circumference of the seal portion on the front opening side of the speaker and engaging with a front member provided on the front surface of the speaker, and formed in the opening direction from the bottom portion of the seal portion. The speaker according to claim 2, further comprising: an elastic groove formed therein. 4. In a structure of a speaker, a convex portion formed so as to protrude in the opening direction of the speaker over the entire outer peripheral portion of a frame of the speaker, and the convex portion protruding in the opening direction of the speaker. The speaker is characterized in that the sound output from the speaker is prevented from leaking in a lateral direction by the convex portion of the frame and the elastic body. 5. A speaker mounting structure for fixing a speaker to a predetermined position, wherein a fixing member for fixing the speaker and a mounting member of the speaker is fixed to the speaker so as to fix the speaker at the predetermined position. A speaker mounting structure characterized by being formed integrally with a frame.