JP2008193417A - Speaker unit and speaker device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve acoustic characteristic of a speaker with a simple structure. <P>SOLUTION: The speaker unit comprises: a driver unit 2 having a cone-type diaphragm 11; a sound emitting part 53 comprising a flange-like equalizer 21 which is installed at a position facing to a peripheral part in the cone-type diaphragm 11, and prevents a sound generated from the cone-type diaphragm 11 from being derived, and a horn 57 which is arranged facing to a position in the vicinity of a center side of the cone-type diaphragm 11, and derives the sound generated from the cone-type diaphragm 11 to the outside; and a peripheral part sound releasing through-hole 62 provided in the flange-like equalizer 21 so as to release a part of the sound generated from the cone-type diaphragm 11 to the outside of the horn 57. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a speaker unit and a speaker device, and is suitably applied to, for example, a cone type horn tweeter using a cone type diaphragm.

  Conventionally, as shown in FIG. 1, a cone type horn tweeter 1 with an equalizer is roughly divided into a driver unit 2 and a sound emitting unit 3 that efficiently emits the sound output from the driver unit 2 to the outside. Yes.

  The driver unit 2 includes a cone-shaped diaphragm 11 having a substantially conical shape with an opening at the tip thereof. The driver unit 2 is supported by a frame 12 via an edge of the cone-shaped diaphragm 11, while the inner side of the cone-shaped diaphragm 11. Is fixed to the voice coil bobbin 14 around which the voice coil 13 is wound.

  The cone-shaped diaphragm 11 is attached in a state in which a hemispherical head cap 11A protrudes in the expanding direction of the cone-shaped diaphragm 11 so as to cover the opening portion on the outer periphery, and the cone-shaped diaphragm 11 is deformed in the radial direction. In addition to preventing the entry of dust and the like.

  In the driver unit 2, a magnetic circuit unit 15 for vibrating the cone-type diaphragm 11 back and forth is fixed to the lower end side of the frame 12 in a fixed state.

  The magnetic circuit portion 15 has a disk-shaped yoke 16 in which a cylindrical pole piece 16A is planted from the center, and an annular magnet 17 is fixed so as to surround the outer periphery of the upper surface of the yoke 16. An annular plate 18 is laminated and fixed on the magnet 17.

  When the magnetic circuit unit 15 is attached to the frame 12 as a result of fixing the upper surface of the plate 18 and the lower surface of the frame 12, the driver unit 2 attaches the voice coil bobbin 14 around which the voice coil 13 is wound to the pole piece 16A and The magnetic gap formed between the plates 18 is held so as to be surrounded in a non-contact state.

  Further, in the driver unit 2, the opening portion on the inner peripheral side of the cone-type diaphragm 11 is supported by a damper 19 attached to the frame 12 and the voice coil bobbin 14, whereby the cone-type diaphragm 11 is supported with respect to the frame 12. When moving in the front-rear direction, the non-contact state of the voice coil bobbin 14 and the voice coil 13 in the magnetic gap can be maintained.

  Thus, in the driver unit 2, when an electromagnetic force is applied to the magnetic gap of the magnetic circuit unit 15 by an applied current based on an audio signal supplied from the outside to the voice coil 13, the voice coil 13 attracts or repels the magnet 17. Thus, the cone-shaped diaphragm 11 vibrates back and forth to generate a sound wave corresponding to the audio signal.

  On the other hand, in the sound emitting part 3 of the cone-type horn tweeter 1 with an equalizer, a flange-like equalizer 21 having a ring shape is attached to the edge of the cone-type diaphragm 11 via a gasket 20 and the flange-like equalizer 21 is attached. On the other hand, a tubular horn 8 whose opening area gradually increases toward the tip is attached.

  The horn 8 has an inner space portion called a sound path and a distal end opening portion called an opening, and a small opening portion at a proximal end portion is called a throat. It plays the role which connects the type | mold diaphragm 11 and external space, and is used in order to attain matching (matching) with air electroacoustically.

  In the sound emitting unit 3, not only the flange-like equalizer 21 is attached at a position facing the outer peripheral portion of the cone-shaped diaphragm 11, but also substantially opposite to the head cap 11 </ b> A provided at the center of the cone-shaped diaphragm 11. A bullet-shaped equalizer 31 having a bullet-shaped shape is attached to the flange-shaped equalizer 21 at, for example, a three-point support.

  The bullet-shaped equalizer 31 has a relationship in which the sound wavelength in the high frequency band is shortened, and the phase of the sound generated from the central portion of the cone-type diaphragm 11 and the sound generated from the peripheral portion of the cone-type diaphragm 11 is not aligned. Therefore, the sound generated from a predetermined concentric circumferential portion of the cone type diaphragm 11 is provided so as to be transmitted to the horn 8 where the sound output decreases due to interference with each other.

  Actually, the sound emitting unit 3 causes the horn 8 to generate a sound mainly generated from the concentric circumferential part of the cone-shaped diaphragm 11 corresponding to the opening area corresponding to the distances D1 and D2 between the flange-shaped equalizer 21 and the bullet-shaped equalizer 31. Since it is derived to the outside, the sound of the same phase is mainly output.

  Accordingly, the cone-type horn tweeter 1 with an equalizer efficiently outputs the sound generated by the cone-type diaphragm 11 of the driver unit 2 via the flange-like equalizer 21 and the horn 8 of the sound emitting unit 3.

On the other hand, when the sound from the center of the diaphragm and the sound from the periphery of the diaphragm are combined, there is no phase difference between the phase of the sound at the center and the sound of the periphery Therefore, there is a horn speaker using a so-called dome-shaped diaphragm in which an equalizer called a phase equalizer is provided on the front surface of the diaphragm (see, for example, Patent Document 1).
JP-A-62-111599

  By the way, in the cone-type horn tweeter 1 with an equalizer having such a configuration (FIG. 1), from the concentric circumferential portion of the cone-type diaphragm 11 corresponding to the opening region corresponding to the distances D1 and D2 between the flange-shaped equalizer 21 and the bullet-shaped equalizer 31. Although only the in-phase sound is mainly led out from the horn 8 to the outside, it is interfered by the non-in-phase sound generated from the opening region corresponding to the distances D1 and D2 of the peripheral part of the cone-shaped diaphragm 11. Therefore, as shown in FIG. 2, there is a problem that the sound pressure level of the sound wave generated from the cone-shaped diaphragm 11 is temporarily greatly reduced in the vicinity of about 5000 [Hz].

  Moreover, in the horn speaker using the dome-shaped diaphragm shown in Patent Document 1, the path length for deriving the sound at the central part and the path length for deriving the sound at the peripheral part are aligned, There is a problem that an equalizer having a complicated structure in which a plurality of slits are formed so as not to generate a phase difference with the sound in the peripheral portion is difficult, and it is difficult to form with a mold.

  The present invention has been made in consideration of the above points, and intends to propose a speaker unit and a speaker device having a simple structure and excellent acoustic characteristics.

  In order to solve such a problem, in the speaker unit and the speaker device of the present invention, a driver unit having a cone-type diaphragm and a sound generated from the cone-type diaphragm provided at a position facing the periphery of the cone-type diaphragm are provided. A sound emitting means including a flange for preventing derivation and a derivation unit arranged to oppose a position in the vicinity of the center side of the cone type diaphragm and for deriving sound generated from the cone type diaphragm to the outside; and a cone type diaphragm A through hole provided in the flange is provided in order to escape a part of the sound generated from the outside to the outside of the lead-out part.

  As a result, sound generated from the position near the center of the cone-shaped diaphragm is derived to the outside of the sound emitting means by the equalizer function of the derivation section, and sound generated from the periphery of the cone-shaped diaphragm is derived from the through hole of the flange. To prevent the decrease of the sound output in a predetermined frequency band by avoiding the interference between the sound generated from the periphery of the cone-type diaphragm and the sound generated from the position near the center of the cone-type diaphragm. Can do.

  Further, in the speaker unit and the speaker device of the present invention, in order to prevent the derivation of the sound generated from the cone type diaphragm provided at the position facing the peripheral portion of the driver unit having the cone type diaphragm and the cone type diaphragm. And an equalizer portion having a columnar protrusion disposed at a position opposite to the center portion of the flange and the cone-shaped diaphragm, and a diaphragm that is disposed so as to surround the columnar protrusion and maintains a predetermined distance from the diaphragm. Provided on the flange to release the sound generated from the periphery of the cone type diaphragm in front of the cone type diaphragm and the sound emitting means comprising the lead part for leading the generated sound to the outside and the cone type diaphragm And provided through-holes.

  As a result, the sound generated from the central part of the cone-shaped diaphragm is led out to the outside of the sound emitting means by the equalizer function of the columnar protrusion, and the sound generated from the peripheral part of the cone-shaped diaphragm is derived from the through hole of the flange. Thus, the interference between the sound generated from the periphery of the cone-type diaphragm and the sound generated from the center of the cone-type diaphragm can be avoided in advance, and a decrease in sound output in a predetermined frequency band can be prevented.

  According to the present invention, the sound generated from the position near the center of the cone-shaped diaphragm is led out of the sound emitting means by the equalizer function of the lead-out section, and the sound generated from the periphery of the cone-shaped diaphragm is passed through the flange. Reducing sound output in a predetermined frequency band by avoiding interference between the sound generated from the periphery of the cone-type diaphragm and the sound generated near the center side of the cone-type diaphragm. Thus, a speaker unit and a speaker device having a simple structure and excellent acoustic characteristics can be realized.

  Further, according to the present invention, the sound generated from the central part of the cone-shaped diaphragm is led out of the sound emitting means by the equalizer function of the columnar protrusion, and the sound generated from the peripheral part of the cone-shaped diaphragm is passed through the flange. Escape from the hole to the outside of the lead-out part, avoiding the interference between the sound generated from the periphery of the cone-type diaphragm and the sound generated from the center part of the cone-type diaphragm, and preventing a decrease in sound output in a predetermined frequency band Thus, a speaker unit and a speaker device having a simple structure and excellent acoustic characteristics can be realized.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) Overall Configuration of Speaker Device In FIG. 3, reference numeral 50 denotes a speaker device according to the present invention as a whole. A wood back plate 52A and left and right trunk plates 52B, 52C constituting the cabinet 52 are attached to each other, and An interposition member 55 made of a plastic material such as polystyrene is bonded to the plates 52B and 52C.

  The speaker device 50 is bonded to the mounting hole 55A of the interposition member 55 in a state where the boss 56A of the front panel 56 made of a plastic material such as polystyrene is fitted, so that the front panel 56 is attached to the front surface of the cabinet 52. Will be attached.

  In the speaker device 50, a cone-type horn tweeter 51 with a peripheral sound escape through hole is arranged as a speaker unit in the approximate center of the front panel 56, and the opening of the horn 57 in the cone-type horn tweeter 51 with a peripheral sound escape through hole is provided. And the front end of the opening of the front panel 56 are attached by screws 58 and 59.

(2) Configuration of Cone Type Horn Tweeter with Peripheral Sound Escape Through-hole As shown in FIG. 4 in which the same reference numerals are given to the corresponding parts to FIG. Separately, the driver unit 2 and a sound emitting unit 53 that efficiently emits the sound output from the driver unit 2 to the outside are configured.

  The driver unit 2 includes a cone-shaped diaphragm 11 having a substantially conical shape with an opening at the tip thereof. The driver unit 2 is supported by a frame 12 via an edge of the cone-shaped diaphragm 11, while the inner side of the cone-shaped diaphragm 11. Is fixed to the voice coil bobbin 14 around which the voice coil 13 is wound.

  The cone-shaped diaphragm 11 is attached in a state in which a hemispherical head cap 11A protrudes in the expanding direction of the cone-shaped diaphragm 11 so as to cover the opening portion on the outer periphery, and the cone-shaped diaphragm 11 is deformed in the radial direction. In addition to preventing the entry of dust and the like.

  In the driver unit 2, a magnetic circuit unit 15 for vibrating the cone-type diaphragm 11 back and forth is attached to the lower end side of the frame 12 in a fixed state.

  The magnetic circuit portion 15 has a disk-shaped yoke 16 in which a cylindrical pole piece 16A is planted from the center, and an annular magnet 17 is fixed so as to surround the outer periphery of the upper surface of the yoke 16. An annular plate 18 is laminated and fixed on the magnet 17.

  When the magnetic circuit unit 15 is attached to the frame 12 as a result of fixing the upper surface of the plate 18 and the lower surface of the frame 12, the driver unit 2 attaches the voice coil bobbin 14 around which the voice coil 13 is wound to the pole piece 16A and The magnetic gap formed between the plates 18 is held so as to be surrounded in a non-contact state.

  In addition, the driver unit 2 is supported by the damper 19 attached to the frame 12 and the voice coil bobbin 14 at the opening on the inner peripheral side of the cone-shaped diaphragm 11, so that the cone-shaped diaphragm 11 is supported with respect to the frame 12. When moving in the front-rear direction, the non-contact state of the voice coil bobbin 14 and the voice coil 13 in the magnetic gap can be maintained.

  Thus, in the driver unit 2 of the cone-type horn tweeter 51 with the peripheral sound escape through hole, when an electromagnetic force is applied to the magnetic gap of the magnetic circuit unit 15 by the applied current based on the audio signal supplied to the voice coil 13 from the outside, When the voice coil 13 attracts or repels the magnet 17, the cone-type diaphragm 11 vibrates back and forth to generate a sound wave corresponding to the audio signal.

  On the other hand, in the sound emitting portion 53 of the cone-type horn tweeter 51 with a peripheral sound escape through hole, a flange-like equalizer 21 having an annular shape is formed on the edge of the cone-type diaphragm 11 in the driver unit 2 via the gasket 20. At the same time, a tubular horn 57 whose opening area gradually increases toward the tip is attached to the flange-like equalizer 21 by adhesion.

  The horn 57 has an inner space called a sound path, a tip opening is called an opening, and a small opening at the base end is called a throat. It plays the role which connects the type | mold diaphragm 11 and external space, and is used in order to attain matching (matching) with air electroacoustically.

  The sound emitting unit 53 is not only mounted with the flange-like equalizer 21 at a position facing the outer peripheral portion of the cone-type diaphragm 11 but also substantially opposed to the head cap 11A provided at the center of the cone-type diaphragm 11. A bullet-shaped equalizer 31 having a bullet shape substantially matching the outer peripheral shape of the voice coil bobbin 14 is attached to the flange-like equalizer 21 by, for example, three-point support.

  Incidentally, in the cone-shaped horn tweeter 51 with the peripheral sound escape through hole, various sizes such as the size of the opening region corresponding to the distances D1 and D2 between the flange-shaped equalizer 21 and the bullet-shaped equalizer 31 and the shape of the bullet-shaped equalizer 31 are various. Depending on the factor, the sound pressure frequency characteristic of the sound finally derived from the horn 57 is determined.

  The bullet-shaped equalizer 31 has a relationship in which the sound wavelength in the high frequency band is shortened, and the phase of the sound generated from the central portion of the cone-type diaphragm 11 and the sound generated from the peripheral portion of the cone-type diaphragm 11 is not aligned. For this reason, the sound output is reduced by interfering with each other, so that the sound generated from a predetermined concentric circumferential portion of the cone type diaphragm 11 is transmitted to the horn 57.

  In practice, the cone-shaped horn tweeter 51 with a peripheral sound escape through-hole is formed from a concentric circumferential portion of the cone-shaped diaphragm 11 corresponding to an opening region corresponding to the distances D1 and D2 between the flange-shaped equalizer 21 and the bullet-shaped equalizer 31. Since the sound generated mainly is led out to the outside by the horn 57, the sound of the same phase is mainly output, and the reduction of the sound output can be suppressed.

  Further, the cone-type horn tweeter 51 with a peripheral sound escape through hole is a cylinder for releasing the sound generated in the peripheral part of the cone-type diaphragm 11 to the outside of the horn 57 with respect to the position near the center side in the flange-like equalizer 21. A plurality of peripheral sound escape through holes 62 having a predetermined diameter are provided over the entire circumference of the cone-shaped diaphragm 11.

  The peripheral sound escape through-hole 62 generates a sound having a phase difference greatly deviated from the phase of the sound generated in the central portion of the cone-shaped diaphragm 11 due to the divided vibration generated in the peripheral portion of the cone-shaped diaphragm 11. The sound pressure level in a predetermined frequency band (in this case, 5000 [Hz]) is increased because the sounds having phase differences interfere with each other and cancel each other. This is to prevent attenuation.

  In practice, in the cone-type horn tweeter 51 with through-hole sound escape through-hole 51, when the sound pressure characteristic when the sound generated from the center portion of the cone-type diaphragm 11 is picked up by the microphone is shown in FIG. Thus, the drop in the sound pressure level is greatly reduced in the vicinity of 5000 [Hz].

(3) Operation and Effect In the above configuration, the cone-shaped horn tweeter 51 with the peripheral sound escape through hole uses the bullet-shaped equalizer 31 having a simple shape, and a plurality of peripheral sound escape through holes 62 are provided. Since the flange-like equalizer 21 is used, compared with the case where an equalizer having a complicated configuration as shown in FIG. 2 of Patent Document 1 is used, the bullet-shaped equalizer 31 and the flange-like equalizer 21 are molded. Therefore, manufacturability can be greatly improved.

  Further, the cone-shaped horn tweeter 51 with a peripheral sound escape through-hole is cylindrical in order to let the sound generated in the peripheral portion of the cone-shaped diaphragm 11 to the outside of the horn 57 with respect to the position near the center side in the flange-shaped equalizer 21. What is the phase of the sound generated at the central part of the cone-shaped diaphragm 11 due to the divided vibration generated in the peripheral part of the cone-shaped diaphragm 11 by providing a plurality of peripheral sound escape through holes 62 having a predetermined diameter of A sound with a greatly shifted phase difference can be released to the outside without being led out from the inside of the horn 57.

  As a result, the cone-shaped horn tweeter 51 with the peripheral sound escape through hole avoids in advance that the sounds having the phase difference between the central portion and the peripheral portion of the cone-shaped diaphragm 11 interfere with each other and are canceled. The sound pressure level in a predetermined frequency band (in the vicinity of 5000 [Hz] in this case) can be reliably prevented from being greatly attenuated.

  That is, the cone-type horn tweeter 51 with a peripheral sound escape through-hole outputs only the sound of the same phase from the horn 8 by using the bullet-shaped equalizer 31 like the conventional cone-type horn tweeter 1 with an equalizer (FIG. 1). The flange-like equalizer 21 is not a technical idea that suppresses the derivation of the sound generated in the peripheral part of the cone-shaped diaphragm 11 from the horn 57, but the center part through the peripheral part sound escape through hole 62 of the flange-like equalizer 21. The sound of the same phase generated in the central part of the cone-shaped diaphragm 11 is removed from the horn 57 by actively throwing away the sound of the peripheral part greatly deviated from the phase of the sound generated in the part to the outside of the horn 57 This is the technical idea of outputting.

  As described above, the cone-shaped horn tweeter 51 with the peripheral sound escape through-hole 51 has an equalizer action by the bullet-shaped equalizer 31 and the flange-like equalizer 21 and a sound pressure in a predetermined frequency band by the peripheral sound escape through-hole 62 of the flange-like equalizer 21. Due to the level attenuation preventing action, it is possible to provide the listener with a sound of much higher quality than the conventional cone-type horn tweeter 1 with an equalizer (FIG. 1).

  According to the above configuration, the cone-shaped horn tweeter 51 with the peripheral sound escape through-hole 51 includes a plurality of cone-shaped horn tweeters 51 over the entire circumference on the center side of the flange-shaped equalizer 21 in addition to the equalizer action by the bullet-shaped equalizer 31 and the flange-shaped equalizer 21. By a sound pressure level attenuation preventing action in a predetermined frequency band by letting the sound generated in the peripheral part of the cone type diaphragm 11 to the outside of the horn 57 through the formed peripheral part sound escape through hole 62, the structure is simplified. The acoustic characteristics can be greatly improved.

(4) Other Embodiments In the above-described embodiment, the case where the bullet-shaped equalizer 31 as shown in FIG. 4 is provided as the columnar protrusion has been described, but the present invention is not limited to this. Alternatively, an equalizer formed in various other columnar shapes such as a columnar shape may be provided.

  In particular, in the cone-shaped horn tweeter 51 with a peripheral sound escape through hole, various sizes such as the size of the opening region corresponding to the distances D1 and D2 between the flange-like equalizer 21 and the bullet-shaped equalizer 31 and the shape of the bullet-shaped equalizer 31 are available. Since the sound pressure frequency characteristic of the sound finally derived from the horn 57 is determined depending on the factor, if it is acceptable to change the sound pressure frequency characteristic, the flange-like equalizer 21 and the cannonball The size of the opening region corresponding to the distance from the shape equalizer 31, the shape of the shell-shaped equalizer 31, and the like may be slightly changed.

  In the above-described embodiment, the case where the flanged equalizer 21 is provided with the peripheral sound escape through hole 62 (FIG. 4) having a predetermined diameter has been described. However, the present invention is not limited to this, and the cone type is used. If the position is opposite to the peripheral part of the diaphragm 11, the diameter is further increased or decreased, or the peripheral part sound escape through hole 62 is further inward or outward from the position near the center side of the flange-like equalizer 21. It may be shifted slightly.

  Further, in the above-described embodiment, the speaker having a structure in which the front end of the opening of the horn 57 and the front end of the opening of the front panel 56 in the cone-type horn tweeter 51 with the peripheral sound escape through hole are attached by screws 68 and 69. Although the case where the device 50 is targeted is described, the present invention is not limited to this, and the speaker device having a structure in which the opening end of the horn 57 and the opening end of the front panel 6 are integrated is targeted. You may make it.

  Further, in the above-described embodiment, the case has been described where the cone-shaped horn tweeter 51 with a peripheral sound escape through-hole having a structure in which the flange-like equalizer 21 and the tubular horn 57 are integrally attached by bonding is used. However, the present invention is not limited to this, and a cone-type horn tweeter 51 with a peripheral sound escape through hole having a structure in which the flange-like equalizer 21 and the tubular horn 57 are integrated may be used.

  Further, in the above-described embodiment, the sound emitting portion 53 as sound emitting means including the driver unit 2 as the driver unit, the flange-like equalizer 21 as the flange, and the horn 57 as the lead-out portion, and the peripheral portion as the through hole The case where the cone-shaped horn tweeter 51 with the peripheral sound escape through hole as the speaker unit of the present invention is configured by the sound escape through hole 62 has been described. However, the present invention is not limited to this, and other various configurations. The speaker unit and the speaker device of the present invention may be configured by a driver unit consisting of, a sound emitting means consisting of a flange and a lead-out portion, and a through hole provided in the flange.

  The speaker unit and the speaker device of the present invention can be applied to various types of speakers.

It is an approximate line sectional view showing the section structure of the conventional cone type horn tweeter with an equalizer. It is an approximate line characteristic curve figure showing the sound pressure frequency characteristic of the conventional cone type horn tweeter with an equalizer. 1 is a schematic cross-sectional view showing an overall configuration of a speaker device according to the present invention. 1 is a schematic cross-sectional view showing a cross-sectional structure of a cone-type horn tweeter with a peripheral sound escape through hole in the present invention. It is a rough-line characteristic curve figure which shows the sound pressure frequency characteristic of a cone-type horn tweeter with a peripheral part sound escape through-hole.

Explanation of symbols

  1 ... Cone type horn tweeter with equalizer, 2 ... Driver unit, 3 ... Sound emission part, 11 ... Cone type diaphragm, 12 ... Frame, 13 ... Voice coil, 14 ... Voice coil bobbin, 15 ... ... Magnetic circuit section, 16 ... yoke, 17 ... magnet, 18 ... plate, 19 ... damper, 21 ... flange-shaped equalizer, 31 ... bullet-shaped equalizer, 50, 60 ... speaker device, 51 ... Cone type horn tweeter with cylindrical equalizer, 52 ... Cabinet, 55 ... Intermediate member, 56 ... Front panel, 57 ... Horn, 58 ... Cylinder equalizer, 61 ... Cylinder equalizer and peripheral sound escape penetrating Cone type horn tweeter with holes, 62 …… Surroundings through holes, 68, 69 …… screws.

Claims (5)

A driver unit having a cone-shaped diaphragm;
A flange that is provided at a position facing the peripheral portion of the cone-type diaphragm and that is disposed to face a position near the center side of the cone-type diaphragm and a flange for preventing derivation of sound generated from the cone-type diaphragm. A sound emitting means comprising a derivation unit for deriving the sound generated from the cone-shaped diaphragm to the outside;
A speaker unit comprising: a through hole provided in the flange for allowing a part of sound generated from the cone-shaped diaphragm to escape to the outside of the lead-out portion. A driver unit having a cone-shaped diaphragm;
A flange that is provided at a position facing the periphery of the cone-type diaphragm and prevents the sound generated from the cone-type diaphragm from being led out, and a columnar shape disposed at a position facing the center of the cone-type diaphragm Sound emitting means comprising an equalizer portion having a projecting portion, and a derivation portion arranged so as to surround the columnar projecting portion and deriving sound generated from the diaphragm while maintaining a predetermined distance from the columnar projecting portion When,
A through-hole provided in the flange for releasing sound generated from the peripheral portion of the cone-shaped diaphragm to the outside of the lead-out portion, in front of the cone-shaped diaphragm; Speaker unit. The columnar protrusion is disposed at a position corresponding to a voice coil bobbin attached to the cone-shaped diaphragm, and an outer peripheral shape of the columnar protrusion substantially matches an outer peripheral shape of the voice coil bobbin. The speaker unit according to claim 2. A speaker device to which a speaker unit that generates a sound according to the audio signal while vibrating a cone-shaped diaphragm according to an audio signal is attached,
The speaker unit is
A driver unit having the cone-shaped diaphragm;
A flange that is provided at a position facing the peripheral portion of the cone-type diaphragm and that is disposed to face a position near the center side of the cone-type diaphragm and a flange for preventing derivation of sound generated from the cone-type diaphragm. A sound emitting means comprising a derivation unit for deriving the sound generated from the cone-shaped diaphragm to the outside;
A speaker device comprising: a through hole provided in the flange for allowing a part of sound generated from the cone-shaped diaphragm to escape to the outside of the lead-out portion. A speaker device to which a speaker unit that generates a sound according to the audio signal while vibrating a cone-shaped diaphragm according to an audio signal is attached,
The speaker unit is
A driver unit having the cone-shaped diaphragm;
A flange that is provided at a position facing the periphery of the cone-type diaphragm and prevents the sound generated from the cone-type diaphragm from being led out, and a columnar shape disposed at a position facing the center of the cone-type diaphragm Sound emitting means comprising an equalizer portion having a projecting portion, and a derivation portion arranged so as to surround the columnar projecting portion and deriving sound generated from the diaphragm while maintaining a predetermined distance from the columnar projecting portion When,
A through-hole provided in the flange for releasing sound generated from the peripheral portion of the cone-shaped diaphragm to the outside of the lead-out portion, in front of the cone-shaped diaphragm; Speaker device.

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