JP2001224090A - Passive radiator loudspeaker system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passive radiator loudspeaker system that has no limit in downsizing and causes no remarkable change in listening sense characteristic arising from a change in a listening position because of ununiformed characteristic of a low frequency sound in the case of configuring the loudspeaker system having loudspeaker function of actively drive medium and high frequency sound radiation and a low frequency sound reproduction enhancing function on the basis of passive drive by a passive radiator. SOLUTION: A frame 28 of a loudspeaker unit 27 consists of two sections; a small diameter part and a large diameter part, and has openings 29, 29 formed in the small diameter part and openings 30, 30 formed in the large diameter part. An outer circumference of a damper 31 consisting of concentric fins is fixed to a border between the small diameter part and the large diameter part, and a vibration section 32 is fixed to an inner circumferential part of the damper 31. The vibration section 32 consists of a piezoelectric disk element and its outer circumference is fixed to the edge of the large diameter part of the frame 28 via an edge 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passive radiator type speaker device, and more particularly to a passive radiator type speaker device having both an active sound emission function in a middle and high frequency range and a passive sound emission function in a low range.

[0002]

2. Description of the Related Art Generally, when a speaker device is constructed by mounting a speaker unit on a cabinet, it is difficult to reproduce the entire audible band with one speaker unit. It is divided into a middle and high sound band and a low sound band, and a middle and high sound speaker and a low sound speaker corresponding to each divided band are attached to a baffle plate. Further, in order to lower the reproduction lower limit frequency of the bass speaker, a large-diameter speaker unit is required. Therefore, a combination of a small-diameter bass speaker and a passive radiator may be used.

For example, as shown in FIG. 11, a mid-high range speaker 2, a low range speaker 3, and a passive radiator 4 are provided on a front plate of a cabinet 1 made of an acoustically rigid material.
Are mounted in a row to form a speaker device.
As shown in FIG. 12, a detailed configuration of the passive radiator 4 is such that a damper 8 is formed at a base of a frame 5 having a plurality of openings 6 and 7 removed and an opening having a large diameter. 9 is fixed.

As shown in the enlarged view of FIG. 13, the additional weight 9 is formed by laminating a first weight 12, a second weight 13, and a third weight 14 each having a circular plate shape in a hole formed in the center of the damper 8. The second weight 13 and the third weight 14 are fixed to the first weight 12 by the fixing screw 15. These weights are for lowering the resonance frequency and lowering the lower limit of the reproduction frequency.
A base of a diaphragm 10 supported by an edge 11 at an open portion of the frame 5 is fixed to an outer peripheral edge of the first weight 12. Reference numeral 10a is a dust cap.

The diaphragm 1 is driven by low-frequency sound waves generated inside the cabinet 1 when the low-frequency range speaker 3 is driven.
0 is driven, and the sound emission volume of low-frequency reproduction is increased. Therefore, such a speaker device does not require a large-diameter bass speaker, and has an advantage that the whole speaker device can be reduced in size by the middle-diameter bass speaker 3 and the passive radiator 4.

On the other hand, as shown in FIGS. 14 and 15, there has been proposed a speaker device having both a speaker function of emitting a middle and high frequency sound to one speaker unit and a bass reproduction enhancement function using a passive radiator.

That is, as shown in FIG. 14, a speaker unit 17 is attached to a front plate (baffle plate) of a box-shaped cabinet 16.
As shown in FIG. 15, a speaker 26 for reproducing middle and high frequency sounds and low frequencies is fixed to the base of a frame 24 having a plurality of openings 25, 25,.
The outer peripheral portion of the speaker diaphragm 23 is supported by the edge portion 22 so that sound is emitted from the speaker diaphragm 23. Further, the passive diaphragm 21 positioned between the base and the intermediate portion of the frame 24 is moved to the edge portion. The passive diaphragm 19, which is supported between the intermediate portion and the open portion of the frame 24, is supported by the edge portion 20 and the edge portion 18.

Therefore, by driving the speaker 26, a part of the mid-high range and the low range (closer to the middle range) is emitted forward as it is, and the low range is formed by the passive vibration plate 21 and the passive vibration from the inside of the cabinet 16. The plate 19 is passively driven to perform bass enhancement (for example,
JP-A-4-248799).

[0009]

The conventional passive radiator-type speaker device has an advantage that when a passive radiator-type speaker is added, a large-diameter bass speaker is not required, and the entire speaker device can be reduced in size. However, the use of a plurality of speaker units limits the miniaturization of the device.

When one speaker unit is provided with both a speaker function of emitting a medium-high sound and a function of enhancing low-frequency sound reproduction by a passive radiator, a speaker diaphragm for emitting a sound in a medium-high sound band is provided. The ring-shaped passive radiator diaphragm is formed coaxially on the outer periphery, so that the behavior of passive drive sound emission becomes equivalent to the sound emission from the ring-shaped vibration source. The sound field characteristics of the sound range are not equalized, and peak components are generated at specific frequencies, and the audible characteristics change significantly due to changes in the listening position.These are corrected by improving the material of the electric circuit and the vibration member. Is not easy to do.

It is an object of the present invention to reduce the size of a speaker device having both a speaker function of actively driving the emission of middle and high frequencies and a bass reproduction enhancement function based on passive driving performed by a passive radiator. It is an object of the present invention to provide a passive radiator-type speaker device in which there is no limit, the characteristics of the low frequency range are not uniform, and the perceptual characteristics change accompanying the change of the listening position does not significantly occur.

[0012]

In order to solve the above problems, a passive radiator type speaker device according to the present invention employs the following characteristic configuration.

(1) A damper having an outer peripheral portion fixed to a frame fixed to the speaker enclosure and a sound emission portion fixed to a central portion, and an outer peripheral portion fixed to the frame via an edge portion, And a diaphragm portion located at a sound emitting portion of the sound emitting portion, and the sound emitting portion is actively driven when a predetermined audio signal is supplied to the sound emitting portion, A passive radiator-type speaker device, wherein the diaphragm portion is passively driven by a sound wave component from inside the speaker enclosure.

(2) The sound emitting section of (1) is fixed to the center of the damper, and the periphery of the vibrating section of the sound emitting section is fixed to the base of the diaphragm. The passive radiator type speaker device according to claim 1, wherein:

(3) The sound emission section of (1) is fixed to the periphery of a hole formed in the center of the damper, and the inner periphery of the diaphragm is fixed to the fixed portion. Passive radiator-type speaker device.

(4) The sound emitting section of (1) is constructed by fixing a surface of one side of a plate-shaped piezoelectric element to the center of the damper, and forming a peripheral part on the other side of the piezoelectric element by the above-mentioned. A passive radiator-type speaker device fixed to the base of the diaphragm.

(5) A passive radiator type speaker device wherein the sound emitting section of (1) is fixed to a portion where the center of the damper and the base of the diaphragm are fixed in a laminated state.

(6) The sound source section of (1) is formed by fixing a surface of one side of a plate-shaped piezoelectric element to the center of the damper. A passive radiator-type speaker device fixed to the base of the diaphragm.

(7) The sound emitting section of (1) is constructed by fixing a surface of one side of a plate-shaped piezoelectric element to the center of the damper, and attaching the vibration to the other side of the piezoelectric element. A passive radiator-type speaker device in which a base surface of a plate portion is fixed.

(8) A passive radiator type speaker device wherein the sound emitting section of (1) is configured by adding a dome-shaped first sound emitting section inside the other side of the piezoelectric element.

(9) The sound source section of (1) is configured by fixing a voice coil type speaker to the center of the damper, and fixing the base of the diaphragm section to the fixed portion. A passive radiator-type speaker device comprising a dome-shaped second sound emitting unit added to a driving unit of the speaker.

(10) A damper having an outer peripheral portion fixed to a frame fixed to the speaker enclosure and an opening formed in the center portion, and a surface on one side fixed to the frame and formed on a surface on the other side. A sound emitting portion having a third sound emitting portion positioned at the opening, and a diaphragm portion having an outer peripheral portion supported by the frame via an edge portion and an inner peripheral portion fixed around the opening. When a predetermined audio signal is supplied to the sound emitting section, the sound emitting section is actively driven to emit sound from the third sound emitting section, and the diaphragm section is moved from the inside of the speaker enclosure. A passive radiator-type speaker device configured to be passively driven by a sound wave component of the same.

(11) In any one of the above (2) to (8), a connection terminal is fixed to an outer peripheral portion of the frame via a terminal plate made of an insulator, and one end of a tinsel wire is connected to the connection terminal. A passive radiator-type speaker device, wherein the other end is connected to a relay connection portion formed in the diaphragm, and the relay connection portion is connected to a lead wire from a sound source.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to FIGS. First, a first embodiment of the present invention will be described using a speaker unit 27 shown in FIG. Speaker unit 2 shown in FIG.
7 is a speaker enclosure (not shown) as a whole
The frame 28 is formed in two stages, a small diameter portion and a large diameter portion, and has a plurality of openings 29 formed in the large diameter portion and a plurality of openings 30 formed in the small diameter portion.
30.

A plurality of concentric pleats are formed at the boundary between the small-diameter portion and the large-diameter portion, and the outer peripheral portion of a damper 31 that restricts radial movement and permits axial movement is fixed. A vibrating section 32 (sound emission section) is fixed to the section. The vibrating section 32 is formed of a piezoelectric element having a disk-shaped appearance.

Such a vibrating part 32 has an outer peripheral part
A diaphragm 33 (diaphragm portion) fixed to the end of the large-diameter portion of the frame 28 via an edge portion 34 and having a hole formed in the center portion positioned at a sound emitting portion of the vibrating portion 32. It is composed. The appearance of the diaphragm 33 has a conical shape,
It resembles the shape of a normal speaker cone.

Therefore, the above-described speaker unit 27 is attached to a speaker enclosure (not shown) to constitute a speaker device, and when a driving signal corresponding to a predetermined audio signal is supplied to the vibrating section 32, The part 32 is driven to emit sound waves forward from the front surface area of the vibrating part 32, and the vibration of the front outer peripheral edge of the vibrating part 32 is transmitted to the vibrating plate 33 so that the whole of the vibrating plate 33 is moved in the axial direction. It is driven and active sound is emitted in front of it.

With such active sound emission, a sound wave generated behind the diaphragm 33 is taken into the enclosure, and the sound wave component from inside the speaker enclosure drives the diaphragm 33 passively from the back side. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Accordingly, one speaker unit has both a speaker function of emitting medium and high-frequency sounds and a function of enhancing low-frequency sound reproduction by a passive radiator, and the sound is evenly distributed by the diaphragm 33 having a relatively large area. So
Since the sound field characteristics in the low frequency range are made uniform, it is difficult for a peak component to be generated at a specific frequency or a change in audibility characteristics due to a change in the listening position.

Since the mass of the vibrating portion 32 contributes to the reduction of the resonance frequency of the diaphragm 33, there is an advantage that a weight used as an additional component in the conventional device becomes unnecessary.

In the speaker unit 27 of the present embodiment,
A lead wire connection structure for supplying a drive signal corresponding to an audio signal to the vibration unit 32 is configured, for example, as shown in FIG. That is, a terminal plate 35 made of an insulator is fixed to the outer peripheral portion of the frame 28, a connection terminal 36 made of a conductor is fixed to the terminal plate 35, one end of a tinsel wire 37 is soldered to the connection terminal 36, and the other end is vibrated. The solder connection is made to the relay connection part 38 formed in the plate 33.

Further, a connection tab 39 formed on the surface of the vibration section 32 with a film is connected to the relay connection section 38 via a lead wire 40. Although the lead wire 40 is in a state of being lifted from the surface of the diaphragm 33 in the expression according to FIG. 2, it is actually arranged in close contact with the surface of the diaphragm 33, and the portion is covered with an adhesive. Is what it is.

Such a lead wire connection structure can be realized by the respective speaker units (41, 44, 46, 48, 50, 52, 5) in the second to ninth embodiments described later.
5, 59) can be similarly configured.

Next, a second embodiment of the present invention will be described with reference to FIG. This embodiment is an example in which a part of the speaker unit of the passive radiator type speaker device according to the first embodiment is modified, and members having the same configuration and operation are denoted by the same reference numerals. The description will be simplified, and different parts will be described in detail. The same applies to the description of third to ninth embodiments described later.

The damper 3 of the speaker unit 41
An outer peripheral portion of the vibrating portion 42 is fixed to an inner peripheral portion of a hole formed in a central portion of the first portion, and an inner peripheral portion of the vibration plate 33 is fixed to the fixed portion. In addition, a dome-shaped dome-shaped diaphragm 43 is added to the sound emission section of the vibration section 42.

Therefore, the above-described speaker unit 41 is mounted on a speaker enclosure (not shown) to constitute a speaker device. When a driving signal corresponding to a predetermined audio signal is supplied to the vibrating section 42, a dome-shaped The vibration plate 43 is driven, and a sound wave is emitted forward. With this,
The whole of the diaphragm 33 is driven in the axial direction, and active sound is emitted in front of it.

Along with such active sound emission, a sound wave generated behind the diaphragm 33 is taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission. In this example, a sound wave generated in the dome-shaped diaphragm 43 acts as a horn due to the inner surface of the diaphragm 33.

Next, a third embodiment of the present invention will be described with reference to FIG. The vibrating section 45 (sound emission section) of the speaker unit 44 is configured by fixing one surface of the vibrating section 45 made of a plate-shaped piezoelectric element to the center of the damper 31. The peripheral part on the side is fixed to the base of the diaphragm 33.

Therefore, the above-described speaker unit 44 is mounted on a speaker enclosure (not shown) to constitute a speaker device, and when a driving signal corresponding to a predetermined audio signal is supplied to the vibrating section 45, 45 is piezoelectrically vibrated, a sound wave is radiated from the front thereof, and the vibration of the front outer peripheral portion of the speaker 45 is transmitted to the diaphragm 33, whereby the whole of the diaphragm 33 is driven in the axial direction and the active discharge is performed in front thereof. Be sounded.

Along with such active sound emission, sound waves generated behind the diaphragm 33 are taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The vibration section 47 (sound emission section) of the speaker unit 46 is configured by fixing a plate portion at the center of the damper 31 and a plate portion at the base of the diaphragm 33 in a stacked state.

Therefore, the above-described speaker unit 46 is attached to a speaker enclosure (not shown) to constitute a speaker device, and when a driving signal corresponding to a predetermined audio signal is supplied to the vibration unit 47, the vibration unit The entirety of the vibration plate 47 is piezoelectrically driven, and the vibration of the base peripheral edge of the vibration portion 47 is transmitted to the vibration plate 33, whereby the whole of the vibration plate 33 is driven in the axial direction and the active sound is emitted forward.

Along with such active sound emission, a sound wave generated behind the diaphragm 33 is taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The vibrating portion 49 (sound emitting portion) of the speaker unit 48 is configured by fixing a surface of one side of a plate-shaped piezoelectric element to the center of the damper 31, and connects the center of the other side of the vibrating portion 49. It is configured to be fixed to the base of the diaphragm 33.

Therefore, the speaker unit 48 as described above is attached to a speaker enclosure (not shown) to constitute a speaker device. When a driving signal corresponding to a predetermined audio signal is supplied to the vibration unit 49, the vibration unit 49 is driven, and the vibration is transmitted to the diaphragm 33 from one point at the center, and the whole of the diaphragm 33 is driven in the axial direction, so that active sound is emitted in front of it.

Along with such active sound emission, a sound wave generated behind the diaphragm 33 is taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound wave component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Next, a sixth embodiment of the present invention will be described with reference to FIG. The vibration unit 51 (sound emission unit) of the speaker unit 50 is configured by fixing one surface of a plate-like piezoelectric element to the center of the damper 31 and the base of the vibration plate 33 to the other surface. It is configured to be fixed in a state of being sandwiched between surfaces.

Therefore, the speaker unit 50 as described above is mounted on a speaker enclosure (not shown) to constitute a speaker device. When a drive signal corresponding to a predetermined audio signal is supplied to the vibration unit 51, the vibration unit 51 is piezoelectrically driven to radiate sound waves forward from the front surface area of the vibrating part 51, and the whole of the diaphragm 33 is driven in the axial direction to emit active sound forward.

With such active sound emission, sound waves generated behind the diaphragm 33 are taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound wave component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Next, a seventh embodiment of the present invention will be described with reference to FIG. The vibration unit 53 (sound emission unit) of the speaker unit 52 is configured by fixing a surface on one side of the vibration unit 53 made of a plate-shaped piezoelectric element to the center of the damper 31. The peripheral part on the side is fixed to the base of the diaphragm 33.

In this embodiment, as an additional configuration, the vibrating section 5
A dome-shaped diaphragm 54 (first sound emitting portion) formed in a dome shape is added to the inside of the other side of No. 3.

Therefore, the speaker unit 52 as described above is attached to a speaker enclosure (not shown) to constitute a speaker device, and when a driving signal corresponding to a predetermined audio signal is supplied to the vibrating section 45, 53 is vibrated, sound waves are emitted from the front of the dome-shaped diaphragm 54, and vibration of the front outer peripheral edge of the vibrating part 53 is
And the whole of the diaphragm 33 is driven in the axial direction, and active sound is emitted in front of the diaphragm 33.

Along with such active sound emission, a sound wave generated behind the diaphragm 33 is taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound wave component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Next, an eighth embodiment of the present invention will be described with reference to FIG. The sound emission section of the speaker unit 55 is constituted by a voice coil type speaker, and a magnet 56 and a magnetic circuit section 5 are provided at the center of the damper 31.
7 and a dome-shaped diaphragm 58, a voice-coil-type speaker is fixed, and the diaphragm 33 is fixed to the fixed portion.
And a dome-shaped second sound emitting section (dome-shaped diaphragm 58) is added to the speaker drive section.

Accordingly, the speaker unit 55 as described above is attached to a speaker enclosure (not shown) to constitute a speaker device, and a voice coil (not shown) in the magnetic circuit portion 57 corresponds to a predetermined audio signal. When the drive signal is supplied, the dome-shaped diaphragm 58 is vibrated,
Sound waves are radiated from the front, and the magnet 56
Is transmitted to the diaphragm 33, and the vibration of the diaphragm 3
The whole 3 is driven in the axial direction, and an active sound is emitted in front of it.

With such active sound emission, a sound wave generated behind the diaphragm 33 is taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound wave component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Next, a ninth embodiment of the present invention will be described with reference to FIG. The outer periphery of the damper 31 supported by the frame 28 fixed to the speaker enclosure is fixed to the frame 28, and an opening is formed at the center. In addition, one surface is fixed to the frame 28, and a third sound emitting portion (dome-shaped diaphragm 62) formed on the other surface is provided at the opening thereof. . In the figure, W indicates a weight.

The outer periphery of the diaphragm 33 is supported by the frame 28 via the edge 34, and the inner periphery is fixed around the opening.

Therefore, the speaker unit 59 as described above is attached to a speaker enclosure (not shown) to constitute a speaker device, and a voice coil (not shown) in the magnetic circuit section 61 corresponds to a predetermined audio signal. When the drive signal is supplied, the dome-shaped diaphragm 62 vibrates,
A sound wave is radiated from the front and active sound is emitted.

Along with such active sound emission, a sound wave generated behind the diaphragm 33 is taken into the enclosure, and the diaphragm 33 is passively driven from the back side by a sound component from inside the speaker enclosure. Passive sound emission is performed, and the low frequency component is enhanced by the passive sound emission.

Any of the sound emitting sections in the first, second, fourth, eighth and ninth embodiments has a sound emitting section made of a piezoelectric element, but has a sound emitting section made of a voice coil. You may make it comprise a sound part, and conversely, the 3rd,
Although any one of the sound emitting sections 5, 6, and 7 has a sound emitting section made of a voice coil, it may have a sound emitting section made of a piezoelectric element.

Although any of the diaphragms in the first to ninth embodiments has a substantially conical appearance, it may have a flat plate shape, or may have an ellipse or a predetermined curve. Needless to say, it may have a conical shape.

[0063]

As is apparent from the above description, the passive radiator type speaker device according to the present invention has a damper in which an outer peripheral portion is fixed to a frame fixed to a speaker enclosure, and a sound emitting portion is fixed to a center portion. And an outer peripheral portion is fixed to the frame via an edge portion, and a central portion is provided with a diaphragm portion located at a sound emitting portion of the sound emitting portion. When a speaker device that has both a speaker function for active drive of a speaker and a bass reproduction enhancement function based on passive drive performed by a passive radiator is configured, there is a limit to the miniaturization of the device, and the characteristics of the bass range are not uniform and the listening is not performed. It is possible to provide a passive radiator-type speaker device in which a change in hearing characteristics due to a change in position does not significantly occur.

[Brief description of the drawings]

FIG. 1 is a sectional view of a passive radiator type speaker device according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a lead wire connection structure of a vibrating section shown in FIG.

FIG. 3 is a sectional view of a passive radiator type speaker device according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a passive radiator type speaker device according to a third embodiment of the present invention.

FIG. 5 is a sectional view of a passive radiator type speaker device according to a fourth embodiment of the present invention.

FIG. 6 is a sectional view of a passive radiator type speaker device according to a fifth embodiment of the present invention.

FIG. 7 is a sectional view of a passive radiator type speaker device according to a sixth embodiment of the present invention.

FIG. 8 is a sectional view of a passive radiator type speaker device according to a seventh embodiment of the present invention.

FIG. 9 is a sectional view of a passive radiator type speaker device according to an eighth embodiment of the present invention.

FIG. 10 is a sectional view of a passive radiator type speaker device according to a ninth embodiment of the present invention.

FIG. 11 is an external view showing an example of a conventional passive radiator type speaker device.

FIG. 12 is a half sectional view of the passive radiator shown in FIG. 1;

FIG. 13 is an enlarged sectional view of an additional weight shown in FIG.

FIG. 14 is an external view showing another example of a conventional passive radiator type speaker device.

FIG. 15 is a half sectional view of the passive radiator shown in FIG. 14;

[Explanation of symbols]

27, 41, 44, 46, 48, 50, 52, 55, 5
9 Speaker unit 28 Frame 29, 30 Opening 31 Damper 32, 42, 45, 47, 49, 51, 53 Vibration part 33 Vibration plate 34 Edge part 35 Terminal plate 36 Connection terminal 37 Kinshi wire 38 Relay connection part 39 Connection tab 40 Lead Wires 43, 54, 58, 62 Dome-shaped diaphragm 56, 60 Magnet 57, 61 Magnetic circuit

Claims (11)

[Claims] 1. A damper having an outer peripheral portion fixed to a frame fixed to a speaker enclosure and a sound emitting portion fixed to a central portion, and an outer peripheral portion fixed to the frame via an edge portion,
A central portion comprising a diaphragm portion located at a sound emitting portion of the sound emitting portion, and when a predetermined audio signal is supplied to the sound emitting portion, the sound emitting portion is actively driven. A passive radiator-type speaker device, wherein the diaphragm is passively driven by a sound wave component from inside the speaker enclosure. 2. The sound source section is fixed to a center portion of the damper, and a peripheral portion of a vibrating portion of the sound source section is fixed to a base of the diaphragm section. Item 2. The passive radiator type speaker device according to item 1. 3. The sound source section is fixed to the periphery of a hole formed in the center of the damper, and the inner periphery of the diaphragm is fixed to the fixed portion. The passive radiator type speaker device according to claim 1, wherein: 4. The sound emission section is constructed by fixing a surface of one side of a plate-shaped piezoelectric element to a center portion of the damper, and a peripheral portion of the other side of the piezoelectric element is a base of the diaphragm section. The passive radiator-type speaker device according to claim 1, wherein the passive radiator-type speaker device is fixed to the speaker device. 5. The passive radiator according to claim 1, wherein said sound source is fixed to a portion where a center portion of said damper and a base portion of said diaphragm portion are fixed in a laminated state. Type speaker device. 6. The sound source section is constructed by fixing a surface of one side of a plate-shaped piezoelectric element to a center part of the damper, and a center part of the other side of the piezoelectric element is a base part of the vibration plate part. The passive radiator-type speaker device according to claim 1, wherein the passive radiator-type speaker device is fixed to the speaker device. 7. The sound source section is constituted by fixing a surface of one side of a plate-shaped piezoelectric element to a center portion of the damper, and a base surface of the vibration plate section is formed on the other side of the piezoelectric element. The passive radiator type speaker device according to claim 1, wherein the passive radiator type speaker device is configured to be fixed. 8. A passive radiator type speaker apparatus according to claim 1, wherein said sound emitting section is formed by adding a dome-shaped first sound emitting section inside said other side of said piezoelectric element. . 9. The sound emitting section includes a voice coil type speaker fixed to a center portion of the damper, a base of the diaphragm section fixed to the fixed portion, and a driving section of the speaker. The passive radiator-type speaker device according to claim 1, wherein a dome-shaped second sound emitting unit is added to the loudspeaker. 10. A damper having an outer peripheral portion fixed to a frame fixed to a speaker enclosure and an opening formed in a central portion, and a surface on one side fixed to the frame and formed on a surface on the other side. A sound emitting portion having a third sound emitting portion positioned at the opening; and a diaphragm portion having an outer peripheral portion supported by the frame via an edge portion and an inner peripheral portion fixed around the opening. When a predetermined sound signal is supplied to the sound emitting section, the sound emitting section is actively driven to emit sound from the third sound emitting section, and the diaphragm section is moved from the inside of the speaker enclosure. A passive radiator-type speaker device characterized by being configured to be passively driven by a sound wave component. 11. A connection terminal fixed to an outer peripheral portion of the frame via a terminal plate made of an insulator, one end of a tinsel wire is connected to the connection terminal, and the other end is provided on the diaphragm. The passive radiator-type speaker device according to any one of claims 2 to 8, wherein the passive radiator-type speaker device is connected to a connection unit, and a lead wire from the relay connection unit and the sound emission unit is connected.