WO2015167273A1

WO2015167273A1 - Speaker apparatus

Info

Publication number: WO2015167273A1
Application number: PCT/KR2015/004378
Authority: WO
Inventors: 디밴티앨런; 부델메이어콜비
Original assignee: 삼성전자 주식회사
Priority date: 2014-04-30
Filing date: 2015-04-30
Publication date: 2015-11-05

Abstract

A speaker apparatus according to an embodiment comprises: a speaker enclosure having a sound outlet extending along the circumference thereof; a speaker driver disposed inside the speaker enclosure to generate sound; and a phase plug disposed inside the speaker enclosure and configured to guide the sound generated by the speaker driver to the sound outlet, at least a part of the phase plug being spaced apart from the speaker driver.

Description

Speaker unit

One or more embodiments relate to a speaker device, and more particularly, to a speaker device including a compression driver for sound reproduction.

The speaker device may be used for sound reproduction when connected to a receiver (e.g., a stereo receiver or surround receiver, etc.), a television set, a radio, a music player, an electronic sound player (e.g. a smartphone), a video player, or the like. . Typically, the speaker device directs most of the reproduced sound forward from cone speakers, horn speakers or other devices.

One or more embodiments provide a speaker device capable of providing a constant sound quality regardless of the location of the listener.

Speaker device according to an embodiment,

A speaker enclosure having a first acoustic outlet extending along the circumference;

A first speaker driver disposed inside the speaker enclosure, the first speaker driver generating a first sound; And

A first phase plug disposed inside the speaker enclosure, the first phase plug being at least partially spaced from the first speaker driver and configured to guide the first sound generated in the first speaker driver towards the first sound outlet; It may include.

An angle range of the first sound spreading around the speaker enclosure through the first sound outlet may be 180 degrees or more.

The first speaker driver may include a voice coil, and the first phase plug may extend into the voice coil.

The first speaker driver has a cone shape, and the first phase plug has a tab connected to the first sound outlet at an end thereof, and has a rod shape at the center and a dome shape at the center. The branch may include one of a phase plug and a phase plug having a dome shape inverted at the center.

The first speaker driver may have a cone shape, and the first phase plug may include a phase plug having a dome shape at the center and having a tab connected to the first sound outlet between the center and the end portion.

The first speaker driver has a dome shape, and the first phase plug includes a phase plug having a tab connected to the first sound outlet at an end thereof, and a straight tap connected to the first sound outlet between an end portion and a center thereof. And a phase plug having a tab connected to the first acoustic outlet between an end portion and a center thereof.

The first speaker driver has a planar shape, and the first phase plug may include a phase plug having a tab connected to the first sound outlet at an end thereof and having a planar shape.

The compression ratio of the first speaker driver may be based on a value obtained by dividing the surface area of the first speaker driver by the surface area of the first acoustic outlet.

The speaker enclosure may include one of an elliptic shape, a cylindrical shape, a spherical shape, and a polygonal shape.

The first acoustic outlet may have a ring shape surrounding the periphery of the speaker enclosure.

The speaker enclosure may further have one or more second acoustic outlets spaced apart from the first acoustic outlet and extending along a circumference.

At least one second speaker driver for generating a second sound different from the first sound and disposed inside the speaker enclosure; And a second phase plug disposed inside the speaker enclosure, the second phase plug being at least partially spaced apart from the second speaker driver and configured to guide the second sound generated in the second speaker driver towards the second sound outlet. It may further include;

An angle range of the second sound that spreads around the speaker enclosure through the second sound outlet may be 180 degrees or more.

The first speaker driver may be any one of a tweeter, a mid range, and a woofer, and the second speaker driver may be another one of a tweeter, a mid range, and a woofer.

The speaker device may include one of a wired speaker and a wireless speaker.

The above features, aspects, and advantages of one or more embodiments will be understood with reference to the following description, claims, and drawings.

According to one or more embodiments, it is possible to provide a speaker device that emits sound in the circumferential direction.

1A is a schematic cross-sectional view of a speaker device according to a comparative example,

1B is a conceptual diagram schematically illustrating a state of use of a speaker device according to a comparative example.

2A is a schematic cross-sectional view of a speaker device according to an embodiment;

2B is a conceptual diagram schematically illustrating a state of use of a speaker device according to an embodiment.

3A and 3B show an example of a two way speaker device erected vertically by an exemplary speaker pedestal in accordance with an embodiment.

4 shows an example of a cross-sectional view of a speaker device according to the embodiment.

5 is a view conceptually illustrating a speaker device according to an embodiment.

6 is a view conceptually illustrating a speaker device according to an embodiment.

7 is a view conceptually illustrating a speaker device according to an embodiment.

8 is a diagram conceptually showing a speaker device according to an embodiment.

9 is a diagram conceptually showing a speaker device according to an embodiment.

10 is a diagram conceptually showing a speaker device according to an embodiment.

11 is a diagram conceptually showing a speaker device according to an embodiment.

FIG. 12 is a diagram for describing a compression ratio used to design a speaker device, according to an embodiment.

13 illustrates a compression driver according to an embodiment.

14 illustrates a compression driver according to an embodiment.

15 illustrates a compression driver according to an embodiment.

16 illustrates a compression driver according to an embodiment.

17 illustrates a compression driver according to an embodiment.

18 illustrates a compression driver according to an embodiment.

19 illustrates a compression driver according to an embodiment.

20 illustrates a compression driver according to an embodiment.

21A-21B show a comparison of phase plugs with different types of taps.

FIG. 22 shows a phase plug with two tabs in the center with respect to the center line according to an embodiment.

23 shows a speaker device according to an embodiment.

24 shows a speaker device according to an embodiment.

25 shows a speaker device according to an embodiment.

26 shows an example of a perspective view partially showing the inside of an elliptic speaker device according to the embodiment.

FIG. 27 is a perspective view partially showing the inside of an elliptical speaker device upside down according to the embodiment; FIG.

FIG. 28 is a side view partially showing the inside of an elliptic speaker device according to the embodiment; FIG.

29A-29B illustrate examples of wired connectors of speaker devices that may be used in one or more embodiments.

30 is a high level view illustrating an example of an embodiment employing a plurality of embodiments of a speaker device including a compression driver for sound generation.

31 shows a spherical speaker device according to the embodiment.

The following description is made for the purpose of illustrating the general principles of one or more embodiments and is not intended to limit the concept of the invention. In addition, the specific features described herein may be used in combination with other features in each of the various combinations and permutations possible. Unless specifically defined otherwise, all terms may be as broad as possible, including not only the meanings implied in the detailed description, but also meanings understood by one of ordinary skill in the art of dictionaries, conventions and / or technical fields.

One or more embodiments provide a speaker device. In one embodiment, the speaker device comprises a speaker enclosure having at least one acoustic outlet. A compression driver is disposed inside the speaker enclosure. The sound produced by the compression driver spreads around from the sound outlet of the speaker enclosure.

1A is a schematic cross-sectional view of a speaker device 120 according to a comparative example, and FIG. 1B is a conceptual diagram schematically showing a state of use of the speaker device according to a comparative example.

In FIG. 1A, a speaker device 120 is provided that provides sound 110 to the front, according to a comparative example. FIG. 1B shows the operating state of the speaker device 120 in a listening environment having two

listeners

121, 122. The speaker device 120 is disposed at a listening point in front of or behind the one or

more listeners

121, 122. As shown, the listener 121 is located behind the two speakers 120, and the listener 122 is located in front of the two speakers 120. As the sound 110 is provided from the speaker device 120, the sound 110 moves forward from the speaker device 120. Since the listener 121 located at the rear of the speaker device 120 is located behind the sound 110 emitted, it may not be able to hear a part of the sound 110.

2A is a schematic cross-sectional view of the speaker device 200 according to an exemplary embodiment. FIG. 2B is a conceptual diagram schematically illustrating a state of use of the speaker device 200 according to an exemplary embodiment. 2A shows an example of a speaker device 200 in which a compression driver is implemented and in which the sound 201 is evenly spread from the sound outlet 210 of the speaker enclosure. 2B illustrates an example of a speaker device 200 in which a compression driver operates in a listening environment for the

listeners

121 and 122, and the sound 201 is spread evenly from the speaker enclosure 240 according to an embodiment. Indicates.

According to one or more embodiments, the speaker enclosure 240 may have a spherical shape, an elliptic shape, a polygonal shape, and the like, and the speaker enclosure 240 may be provided with a ring-shaped acoustic outlet 210. Therefore, many embodiments provide a highly efficient omni-directional speaker device 200. The speaker device 200 may include various types of speaker configurations such as high frequency speakers, midrange speakers, and low frequency speakers. An example of a high frequency speaker is a tweeter, an example of a midrange speaker is a midrange, and an example of a low frequency speaker is a woofer. For example, a tweeter can generate a sound with a frequency of 2 kHz to 30 kHz, a midrange can produce a sound with a frequency of 300 Hz to 5 kHz, and a woofer with a frequency of 20 Hz to 1 kHz. It can generate a sound having.

As shown in FIG. 2B, the speaker device 200 according to the embodiment is emitted from the speaker device 200, unlike the speaker device 120 (see FIGS. 1A-1B) that provides the sound 110 emitted forward. As the sound 201 is emitted from the sound outlet 210, it is possible to provide sound with the same reproduction to both

listeners

121, 122.

The compression driver includes a speaker driver 230 that generates sound. The speaker driver 230 converts electrical energy into sound waves. Speaker driver 230 may be called a separate transducer that is part of a loudspeaker, television device, or other electronic device. The transducer is a speaker when a single is mounted on the speaker enclosure 240 or used as such (eg, mounted on a surface, used on a ceiling, used on a wall, etc.). It may be called. The compression driver may include at least one of a woofer, a midrange, a tweeter, a subwoofer, and a super tweeter.

The speaker driver 230 includes a diaphragm 231 that moves back and forth to generate a pressure wave. The diaphragm may be cone shaped or dome shaped. Cone-shaped diaphragms can be used for the generation of low or medium frequency sound waves. Dome shaped diaphragms can be used for the generation of high frequency sound waves. The speaker driver may consist of coated or uncoated paper, polypropylene plastic, woven fiberglass, carbon fiber, aluminum, titanium, PEI, polyimide, PET film, plastic film.

The speaker driver 230 has means that are electrically guided and movable back and forth. For example, the speaker driver 230 may include a cone-shaped diaphragm 231, a coil wound around the neck of the diaphragm 231, and a permanent magnet adjacent to the voice coil 232. 233 may include. The diaphragm 231, the voice coil 232, and the permanent magnet 233 may be mounted and supported in a rigid frame. Speaker driver 230 includes, in other configurations, a spider or damper used as a rear suspension member, a terminal or binding posts for connecting audio signals, and a connection between the chassis and the speaker enclosure. It may include a surround or a gasket to make.

3A and 3B show an example of a two way speaker device 300 which is erected vertically by an exemplary speaker stand 330 in accordance with an embodiment. 4 shows an example of a sectional view of the speaker device 300 according to the embodiment.

3A, 3B, and 4, the speaker device 300 according to the embodiment includes a speaker enclosure 340 and a first compression driver 450 and a second disposed inside the speaker enclosure 340. A compression driver 460 is included.

The speaker enclosure 340 may have various shapes such as a spherical shape, an elliptic shape, a cylindrical shape, and a polygonal shape. For example, the speaker enclosure 340 may have an elliptic shape as shown in FIG. 3A.

The speaker enclosure 340 is provided with a first sound outlet 320 and a second sound outlet 310 spaced apart from each other. The first acoustic outlet 320 and the second acoustic outlet 310 may be part of the speaker enclosure 340. A first compression driver 450 is provided in an area adjacent to the first acoustic outlet 320 in the speaker enclosure 340, and a second compression driver 460 is provided in an area adjacent to the second acoustic outlet 310. do. The second acoustic outlet 310 may have a diameter smaller than the first acoustic outlet 320.

The first compression driver 450 includes a first speaker driver 430 and a first phase plug 410. The first speaker driver 430 generates a first sound. As an example, the first sound generated by the first speaker driver 430 may be a low frequency sound. The first speaker driver 430 may be, for example, a woofer.

At least a portion of the first phase plug 410 may be spaced apart from the first speaker driver 430. The first phase plug 410 may be disposed above the first speaker driver 430. The first phase plug 410 may approach the diaphragm of the first speaker driver 430 as close as possible without contacting the first speaker driver 430. At least a part of the first phase plug 410 may have a shape corresponding to the diaphragm of the first speaker driver 430. The first phase plug 410 may function as an acoustic lens.

The second compression driver 460 includes a second speaker driver 440 and a second phase plug 420.

The second speaker driver 440 generates a second sound. The second sound may be different from the first sound. As an example, the second sound generated by the second speaker driver 440 may be a high frequency sound. The second speaker driver 440 may be, for example, a tweeter.

At least a portion of the second phase plug 420 may be spaced apart from the second speaker driver 440. The second phase plug 420 may be disposed above the second speaker driver 440. The second phase plug 420 may close to the diaphragm of the second speaker driver 440 without contacting the second speaker driver 440. At least a part of the second phase plug 420 may have a shape corresponding to the second speaker driver 440. The second phase plug 420 may function as an acoustic lens.

As described above, the speaker device 300 may emit the first sound and the second sound through the first sound outlet 320 and the second sound outlet 310. Each of the first sound and the second sound may be emitted to the outside of the speaker enclosure 340 by 180 degrees or more. For example, the speaker device 300 may emit the first sound through 360 degrees through the first sound outlet 320 and the second sound through 360 degrees through the second sound outlet 310.

As described above, in the state where the first speaker driver 430 and the second speaker driver 440 are disposed inside the speaker enclosure 340, the first sound and the second sound are the first sound outlet 320 and the second sound. Since the light is emitted through the sound outlet 310, the first speaker driver 430 and the second speaker driver 440 may not be visible from the outside of the speaker device 300. In addition, the speaker device 300 may not require or require a protective grille (eg for dust protection). One or more embodiments include

compression drivers

450 and 460 provided with one or more phase plugs 410 and 420 that can be used for advanced speakers, home theaters, sound bars, personal speakers, wireless multi-zone speakers, monitors, professional music systems, and the like. It provides a design of a speaker device 300 that includes.

The lengths of the first and second phase plugs 410 and 420 are minimized to improve the frequency response. The first and second phase plugs 410 and 420 may increase the dynamic mass of the diaphragm, which may be used in the design of the speaker device 300.

5 is a diagram conceptually illustrating a speaker device 500 according to an exemplary embodiment. 5 shows an example in which the shape of the speaker enclosure of the speaker device 500 is cylindrical, and shows an exemplary height (sum of reference numerals 530 and 540) and diameters d and 520.

As an example, the height h of the speaker enclosure can be designed based on the diameters d, 520 of the speaker enclosure. For example, the height h of the speaker enclosure can be 90% to 110% of 2 x 1.5 x diameter (d, 520) (h = 2 x 1.5 x diameter (d, 520) (+/- 10%)) . As shown, the location of the acoustic outlet 510 may be about 1.5 times (about 1.5 × d 520) the diameters d, 520 of the speaker enclosure.

As an example, the minimum diameter of the first speaker driver for producing a good speaker bass (eg, from a woofer) to the acoustic point 521 where the listener is located is about 70 mm. The maximum diameter of the second speaker driver, for producing high quality high sound, from the second speaker driver (eg, tweeter) is about 85 mm.

6 is a diagram conceptually illustrating a speaker device 600 according to an exemplary embodiment. In FIG. 6, as an example of a speaker device 600, a soundbar speaker is shown showing

exemplary lengths

610, 620 and diameters d, 640, where a compression driver is located near both ends of the soundbar speaker. Works. As an example, the

acoustic outlets

630 and 631 are disposed from one end of the soundbar speaker 600 at about 1.5 times the diameter d of the speaker enclosure (about 1.5 x d).

7 is a diagram conceptually illustrating a speaker device 700 according to an exemplary embodiment. In FIG. 7, as an example of a speaker device 700, there is shown a soundbar speaker 700 showing

exemplary lengths

610, 620 and diameters d, 640, and compression near both ends and the center of the soundbar speaker. The driver works. As an example, each of the

acoustic outlets

630 and 631 of the compression driver disposed at the end is about 1.5 times the diameter d 640 of the speaker enclosure from one end of the speaker device 700 (ie, about 1.5 xd (640). Is placed at the position). The acoustic outlet 710 of the compression driver disposed at the center is disposed at the center of the speaker device 700.

8 is a diagram conceptually illustrating a speaker device 800 according to an exemplary embodiment. In FIG. 8, as an example of a speaker device 800, a cylindrical tower speaker is shown, showing an exemplary length 810 (length from the top of the speaker enclosure) and diameters d, 820. As an example, the acoustic outlet 830 may be disposed from a top of the speaker device 800 at a position that is about 1.5 times the diameter d 820 of the cylindrical speaker enclosure, that is, 1.5 x d 820.

9 is a diagram conceptually illustrating a speaker device 900 according to an exemplary embodiment. In FIG. 9, a wireless cylindrical speaker is shown as an example of the speaker device 900. A compression driver is disposed at each end of the speaker device 900. As an example, the location or distance 920 of the acoustic outlet 930 may be about 1.5 times the diameter d 910 of the speaker enclosure, ie 1.5 xd 910, from either end of the speaker device 900. have. As one example, the speaker device 900 includes a wireless receiver for receiving audio communication from a transmission device (eg, a wireless transmitter connected to a receiver, a radio, a smart sound device or an electronic device such as a telephone or a television).

10 is a diagram conceptually illustrating a speaker device 1000 according to an exemplary embodiment. In FIG. 10, an example of a table-mounted speaker device provided near the table 1010 is shown as an example of the speaker device 1000. As an example, the location or distance 1020 of the speaker enclosure from the surface of the table 1010 or other similar type of structure may be about 0.5 times the diameter d 520 of the speaker enclosure, eg, a cylindrical speaker enclosure. For example, a height 1020 of 0.5 x d 520 provides sufficient space around the speaker enclosure. Thus, the speaker enclosure from the ring-shaped acoustic outlet 510 is minimized while the sound emitted at the portion closest to the table 1010 of the ring-shaped acoustic outlet 510 is minimized from interfering or blocked by the table 1010. Sound may be emitted to the vicinity of.

11 is a diagram conceptually illustrating a speaker device 1100 according to an exemplary embodiment. In FIG. 11, as an example of a speaker apparatus, the example of the wall-mounted speaker apparatus installed near the wall is shown. As an example, the location of the speaker enclosure from the surface of the wall 1120 or other similar structure may be about 0.5 times the diameter d 520 of the speaker enclosure, eg, a cylindrical speaker enclosure. As an example, the distance 1110 of 0.5 x d 520 provides sufficient space around the speaker enclosure. Thus, the sound emitted from the portion closest to the wall 1120 in the ring-shaped acoustic outlet 510 is not blocked or interfered, and the sound is emitted from the ring-shaped acoustic outlet 510 to the periphery of the speaker enclosure. Can be.

FIG. 12 is a diagram for describing a compression ratio used to design the speaker device 1200 according to an embodiment. The surface area Sd of the speaker driver, eg, woofer 1210, midrange or tweeter 1226, functioning as a transducer is indicated at 1211. If a dust cap is used, the surface area Sd of the cone shaped speaker driver and the dust cap may be represented by 1211. The surface area Sr of the ring-shaped acoustic outlet 1220 is indicated by 1230. In one embodiment, the compression ratio of the speaker device 1200 is equal to Sd / Sr. In one or more embodiments, the size of the ring shaped acoustic outlet 1220 of the speaker enclosure 1225 may be optimized to obtain a compression ratio that may improve the efficiency of the speaker device 1200 to fill the acoustic region.

In the design of a slotted speaker device used in one or more embodiments, it is possible to keep the path length from where the sound is generated (eg, inside the speaker enclosure) to the acoustic outlet of the speaker enclosure as short as possible. It may be advantageous.

In one embodiment, if the sound is directed outwards through the same slot as the slot in which the sound was created, then this type of design is defined as "end tapped".

Obviously one way to shorten the path length and improve the design is to have a geometrical half radius (or, for example, 1/3, 2/3, 2/5, etc.) from the slot from which the sound is produced. To direct sound from the slot (or throat) located in the other radial position based on the relevant design calculations to the acoustic outlet. This type of design is defined as "center tapped."

In addition, additional improvements may be obtained by adding additional tabs. The figures below show other designs that may include end tabs, one tab, two tabs, and the like, and show geometric relationships.

It should be noted that one or more embodiments include a path length designed to be a particular length. The path length for sound movement from the speaker driver to the acoustic outlet is important for the following reasons.

The path length for the sound traveling to the sound outlet can affect the audio quality. The reflection of sound in the throat of the speaker driver can produce comb filtering and standing waves that cause peaks and dips in the amplitude response of the speaker device. Therefore, it is important to keep the path length short and to keep the path length symmetrical. According to one or more embodiments, it may be advantageous to tap the sound at a midpoint between the center and the outer edge of the speaker driver. Additional advantages can be obtained by adding more tap points at the same spatial point keeping the same path length between the tabs.

13 illustrates a compression driver 1300, according to an embodiment. Referring to FIG. 13, the compression driver 1300 may be a woofer and includes a cone-shaped speaker driver and a phase plug 1320. A phase plug 1320 having a rod shape is disposed above the speaker driver. A tab Te may be formed at an end of the phase plug 1320. In one embodiment, the phase plug 1320 extends inside the voice coil 1310 to stop the flow of air 1330. In this manner, the neck of the diaphragm 1355 of the speaker driver starts roughly within the diameter of the voice coil 1310. This in turn reduces the longest pass path 1380. In one embodiment, phase plug adapter 1340 is used to enable designs having the height of different acoustic outlets 1365 while enabling the use of the same phase plug 1320. For example, with the phase plug adapter 1340, a phase plug that can be extended or retracted may be used to determine sound quality and sound efficiency in the design of the speaker device.

In one embodiment, the cone shaped diaphragm 1355 of the compression driver 1300 moves back and forth. The spider 1350 may assist the movement of the cone-shaped diaphragm 1355. As a portion of the phase plug 1320 is spaced apart from the upper portion of the cone-shaped diaphragm 1355, the cone-shaped diaphragm 1355 presses sound between the cone-shaped diaphragm 1355 and the phase plug 1320. The sound is forced out of the acoustic outlet 1365 (which surrounds the speaker enclosure). The view of the phase plug 1320 is an uncut view of the upper surface. In addition, in FIG. 13, the surround 1370 and the speaker driver mounting plate 1360 are illustrated in detail.

14 illustrates a compression driver 1400 according to an embodiment. Referring to FIG. 14, the compression driver 1400 may be a woofer and includes a cone-shaped speaker driver and a phase plug 1420. On the top of the speaker driver, a phase plug 1420 having a dome shape is disposed at the center. A tab Te may be formed at an end of the phase plug 1420. The dust cap 1415 may be disposed at an upper center of the cone-shaped diaphragm 1455 of the speaker driver. In one embodiment, a portion of the phase plug 1420 is disposed parallel to the top of the cone shaped diaphragm 1455 and the dust cap 1415, with the remaining portion extending out toward the periphery of the speaker enclosure. Path length 1480 appears from the center of dust cap 1415. In one embodiment, the cone-shaped diaphragm 1455 and the dust cap 1415 of the compression driver 1400 move in the front-rear direction (for example, up and down) direction. The spider 1450 may assist with the movement of the cone-shaped diaphragm 1455 with the dust cap 1415. The cone-shaped diaphragm 1455 with the dust cap 1415 presses sound between the cone 1455 with the dust cap 1415 and the phase plug 1420, so as to surround the loudspeaker enclosure (1465). To face the sound 1430 to the outside. Additionally, in FIG. 14, the voice coil 1410, surround 1470 and speaker driver mounting plate 1460 are specifically shown.

15 illustrates a compression driver 1500 according to an embodiment. Referring to FIG. 15, the compression driver 1500 may be a woofer and includes a cone-shaped speaker driver and a phase plug 1520. On the top of the speaker driver, a phase plug 1520 having an inverted dome shape is disposed at the center. A tab Te may be formed at an end of the phase plug 1520. An inverted dust cap 1515 may be disposed at the upper center of the cone-shaped diaphragm 1555. In one embodiment, a portion of the phase plug 1520 is disposed parallel to the top of the cone shaped diaphragm 1555 and the inverted dust cap 1515, with the other portion extending out toward the periphery of the speaker enclosure. Path length 1580 appears from the center of inverted dust cap 1515. In one embodiment, the cone-shaped diaphragm 1555 of the speaker driver having the inverted dust cap 1515 moves in the front-rear (eg, up-down) direction. The spider 1550 may assist in the movement of the cone-shaped diaphragm 1555 with the inverted dust cap 1515. The cone-shaped diaphragm 1555 with the inverted dust cap 1515 presses sound between the cone-shaped diaphragm 1555 and the phase plug 1520, thereby externalizing the acoustic outlet 1565 (enclosing the speaker enclosure). To the sound 1530. Additionally, in FIG. 15, the voice coil 1510, surround 1570, and speaker driver mounting plate 1560 are shown in detail.

16 illustrates a compression driver 1600 according to an embodiment. Referring to FIG. 16, the compression driver 1600 may be a woofer and includes a cone-shaped speaker driver and a phase plug. On the top of the speaker driver, a phase plug having a dome shape is disposed at the center. The dust cap 1615 may be disposed at the upper center of the cone-shaped diaphragm 1655. A center tapped (Tc) may be formed at the center of the phase plug 1620. In one embodiment, a portion of the phase plug 1620 is disposed parallel to the top of the dust cap 1615, and the other portion extends out toward the periphery of the speaker enclosure, with an acoustic outlet 1665 between the center and the end. And a tab path bent outward toward the circumference of the speaker enclosure to exit out therethrough. Path length 1680 appears from outside of dust cap 1615. In one embodiment, the cone-shaped diaphragm 1655 and the dust cap 1615 move forward and backward (eg, up and down). The spider 1650 may assist with the movement of the cone-shaped diaphragm 1655 with the dust cap 1615. The cone-shaped diaphragm 1655 with the dust cap 1615 presses the sound between the cone-shaped diaphragm 1655 with the dust cap 1415 and the phase plug 1620 (having a path length 1680). The sound 1430 is directed out of the acoustic outlet 1665 (enclosing the speaker enclosure) through the air flow path. As shown, the sound 1630 is generated by a speaker driver, and the generated sound 1630 is directed to the outlet 1665 in a plurality of directions through the air flow paths passing through the tap Tc. In addition, in FIG. 16 the voice coil 1610, surround 1670 and phase plug bottom 1625 are shown specifically.

17 illustrates a compression driver 1700 according to an embodiment. Referring to FIG. 17, the compression driver 1700 may be a tweeter and includes a dome-shaped speaker driver and a phase plug 1720. The phase plug 1720 is disposed above the speaker driver. The phase plug 1720 may have a tab Te formed at an end thereof. In one embodiment, a portion of the phase plug 1720 is disposed above the dome-shaped diaphragm 1715 of the speaker driver, and the other portion extends outward toward the periphery of the speaker enclosure 1785. Path length 1780 appears from the center of the dome shaped diaphragm 1715. In one embodiment, the dome shaped diaphragm 1715 presses the sound between the phase plug 1720 and the dome shaped diaphragm 1715, thereby externalizing the acoustic outlet 1765 (enclosing the speaker enclosure 1785). The sound 1730 through the air flow path. In addition, in FIG. 17, the voice coil 1710, surround 1770 and tweeter housing 1790 are specifically shown.

18 illustrates a compression driver 1800 in accordance with an embodiment. Referring to FIG. 18, the compression driver 1800 may be a tweeter and includes a dome-shaped speaker driver and a phase plug 1820. The phase plug 1820 is disposed above the speaker driver. The tab Tc may be formed in a straight line at the center of the phase plug 1820. In one embodiment, a portion of the phase plug 1820 is disposed on the top and sides of the dome-shaped diaphragm 1815 of the speaker driver, and the other portion extends outward toward the periphery of the speaker enclosure 1885. Path length 1880 appears from the center of the dome shaped diaphragm 1815. In one embodiment, the dome shaped diaphragm 1815 pressurizes sound between the phase plug 1820 and the dome shaped diaphragm 1815, thereby externalizing the acoustic outlet 1865 (enclosing the speaker enclosure 1885). To the sound 1830 through the air flow path. As shown, the sound 1830 is generated in a dome shaped speaker driver, and the generated sound 1830 is directed to the sound outlet 1865 in a plurality of directions through air flow paths passing through the tab Tc. In addition, voice coil 1810, surround 1870 are specifically shown in FIG.

19 illustrates a compression driver 1900 according to an embodiment. Referring to FIG. 19, the compression driver 1900 may be a tweeter and shows a dome-shaped speaker driver and a phase plug 1920. The phase plug 1920 is disposed above the speaker driver. A tab Tc perpendicular to the dome-shaped diaphragm 1915 may be formed at the center of the phase plug 1920. As an example, a portion of the phase plug 1920 is disposed on the top and sides of the dome shaped diaphragm 1915 and the surface of the dome shaped diaphragm 1915 (unlike the side disposed in FIGS. 17-18). Has an acoustic outlet 1965 disposed perpendicularly to the remaining portion extending outward toward the periphery of the speaker enclosure 1985. Path length 1980 appears from the center of the dome shaped diaphragm 1915. In one embodiment, the dome shaped diaphragm 1915 pressurizes the sound between the phase plug 1920 and the dome shaped diaphragm 1915, through the air flow path (surrounding the speaker enclosure 1985) ( Toward sound 1930 outside of 1965. As shown, the sound 1930 is generated in a dome shaped speaker driver, and the generated sound 1930 is directed to the outlet 1965 in a plurality of directions through air flow paths passing through the vertical tap Tc. In addition, voice coil 1910, surround 1970, are specifically shown in FIG.

20 illustrates a compression driver 2000 according to an embodiment. Referring to FIG. 20, the compression driver 2000 includes a planar speaker drive, for example, a transducer and a phase plug 2020. The phase plug 2020 having a planar shape is disposed above the speaker driver 2000. In one embodiment, a portion of the phase plug 2020 is disposed above the planar diaphragm 2090, the other portion extends outward toward the periphery of the speaker enclosure, and a tab Te may be formed at the end. have. Air flow paths passing through the tab Te flow outwardly straight toward the periphery of the speaker enclosure. In one embodiment, the planar diaphragm 2090 moves in the front-rear direction, for example in the vertical direction. The spider 2050 may assist the movement of the diaphragm 2090 having a planar shape. The planar diaphragm 2090 pressurizes sound between the phase plug 2020 and the planar diaphragm 2090, so that the sound 2030 out of the acoustic outlet 2065 (which surrounds the speaker enclosure) through the air flow path. ). In addition, in FIG. 20 the voice coil 2010, surround 2070 and transducer mounting plate 2085 are shown in detail. The path length 2080 is also shown in comparison to the air flow path.

21A-21B show a comparison of phase plugs with different types of taps.

FIG. 21A illustrates a compression driver 2100 having a phase plug 2120 having a tab Te formed at an end thereof with respect to the center line 2101 according to an embodiment. The sound 2130 generated from the speaker driver 2115 flows in the direction toward the sound outlet of the speaker enclosure.

FIG. 21B illustrates a compression drive 2110 with a center plug 2102 having a phase plug 2121 having a single tap Tc at its center in accordance with an embodiment. The sound 2131 generated from the speaker driver 2115 flows in the direction toward the sound outlet of the speaker enclosure. The distances d 2150 and c 2151 are indicated for the individual openings. As shown, the path length d 2150 from the circumference to the start point of the exit slot is equal to the path length d 2150 from the center to the start point of the exit slot. In one embodiment, the outlet slot may have a width c 2151 shorter or longer than the distance d 2150.

22 illustrates a phase plug 2122 having two

tabs

2132 and 2133 formed at the center thereof with respect to the center line 2103 according to an exemplary embodiment. As shown, the path length d 2160 from the centerline 2103 to the start point of the exit slot is equal to the distance d 2160 from the end to the start point of the exit slot. As an example, the outlet slot can have a width c 2161 shorter or greater than the distance d 2160. In one embodiment, distance c 2161 may be shorter, greater than, or equal to distance d 2160. In one embodiment, the central portion of the phase plug 2122 may have a length 2d 2162 equal to twice the distance d 2162.

23 illustrates a speaker device 2300 according to an embodiment. In FIG. 23, the speaker device 2300 may have a cylindrical shape. As shown in FIG. 23, a portion of the phase plug can be seen through a ring shaped acoustic outlet 2330 surrounding the cylindrical enclosure. As an example, the compression driver 2325, for example a tweeter, may be disposed on top of the cylindrical speaker device 2300 that includes the acoustic outlet 2310. As an example, the compression driver 2320 (eg, woofer or midrange) may be disposed under the speaker device 2300 including the acoustic outlet 2330.

24 illustrates a speaker device 2500 according to an embodiment. In FIG. 24, the speaker device 2500 illustrates an example of a speaker device having an elliptic shape. As shown, part of the phase plug 2530 can be seen through a ring shaped acoustic outlet 2521 surrounding an elliptic speaker enclosure. In one embodiment, the oval shaped speaker device 2500 is a compression driver 2520, for example a tweeter, ring-shaped, disposed on top of an elliptic shaped speaker device 2500 having an acoustic outlet 2510. It may include a compression driver 2525, such as a woofer or midrange speaker, disposed near the acoustic outlet 2521. As another example, the midrange speaker and the woofer speaker may be disposed inside (eg, spaced apart) of an elliptical speaker enclosure. In another embodiment, only one global band speaker may be disposed inside the speaker enclosure.

In one embodiment, the elliptic shaped speaker device 2500 may include a flat bottom for placement on the surface, or an opening for receiving a stand at the bottom. As an example, an elliptic shaped speaker enclosure connects with a connection for mounting the speaker enclosure on a pedestal or plate, such as a table pedestal, wall plate, or an opening or screw / bolt 2540 for receiving the connection, for example, Threaded openings, threadless openings, fasteners, and the like.

25 illustrates a speaker device 2590 according to an embodiment. In FIG. 25, the speaker device 2590 illustrates another example of a speaker device having an elliptic shape. As an example, the elliptic speaker device 2590 is a compression driver, for example, a tweeter 2592 disposed on top of an elliptic speaker enclosure having an acoustic outlet 2593 and an elliptic speaker enclosure. Compression drivers, such as woofers or midrange speakers, disposed near ring-shaped acoustic outlets 2591 that are offset from height. As another example, the midrange speaker and the woofer speaker may be disposed inside (eg, spaced apart) an elliptic speaker enclosure. In other embodiments, only one global band speaker may be disposed inside the elliptical shaped speaker enclosure. As one example, the elliptical speaker device 2590 may include a flat bottom portion for placement on a surface, or an opening for receiving a pedestal at the bottom. As one example, the elliptic speaker system 2590 may include fastening members such as screws, connectors, bolts, openings (eg, threaded), and the like, for mounting the elliptic speaker system 2590.

FIG. 26 illustrates an example of a perspective view partially showing the inside of an elliptic speaker device 2600 according to an embodiment. FIG. 27 is a perspective view partially showing the inside of an elliptical speaker device 2600 upside down according to an embodiment. FIG. 28 is a side view partially showing the inside of an elliptic speaker device 2600 according to an embodiment.

As shown, the compression driver 2615 disposed below includes a phase plug 2625 having a dome shape at the center. A compression driver 2615, for example a woofer, disposed below, is disposed inside an elliptic speaker enclosure 2670 having an acoustic outlet 2667 for emitting sound to the outside. The compression driver 2610 disposed thereon includes a phase plug 2620. The phase plug 2620 may be a phase plug having a tab formed at an end (see FIG. 17), a phase plug having a straight tab formed between the end and the center (see FIG. 18), or a phase plug having a vertical tap formed between the end and the center (FIG. 19). Reference). A compression driver 2610, for example a tweeter, disposed at the top, is disposed inside the speaker enclosure 2670 having an acoustic outlet 2665.

29A-29B illustrate examples of wired connectors of speaker devices that may be used in one or more embodiments. 29A illustrates a basic plug or wire connector 2900 that may be employed in one or more speaker devices. For plug connectors, the plug of the receiver / amplifier is fitted to the receptors, for example positive terminal 2902 and negative terminal 2901. For the speaker wire, the cap is loosened at the positive terminal 2902 and negative terminal 2901, and the wire can be placed in the through hole of each terminal. The cap is tightened to secure the speaker wire.

29B shows an example of a spring clamped connector 2910 including spring clamps 2911 and 2912 that may be employed in one or more speaker devices. For the spring clamped connector 2910, the lever is pressed to open the slot for inserting the speaker wire. When the wire is inserted, the lever is released so that the spring clamp presses the wire to secure the wire.

It should be noted that in various embodiments of speaker enclosure and speaker driver combinations that may be employed, conventional wiring may include any type of crossover design, delay system, control system, isolation, impedance configuration, and the like. Thus, other embodiments may be designed for other types of use (eg, 4 ohms, 8 ohms, etc.). Additionally, dual drivers may be employed instead of a single driver, and multiple speaker types (eg, multiple tweeters, midranges, woofers, etc.) may be matched together.

Embodiments of one or more speaker devices include media processing devices / modules (e.g., streaming audio / video receiving devices / modules), servers, cloud-based services, other electronic devices (e.g., hardware, software, firmware, or combinations). For example, communication processing devices (eg, audio / video / documents, etc.) for receiving streaming media directly from sources such as smartphones, television devices, audio players, radio stations, streaming media stations, etc. Bluetooth® device, Wi-Fi device, cellular receiving device, etc.).

Embodiments of one or more speaker devices include a user interface for controlling the reception and execution of media or media streams. In one embodiment, the user interface may include a touch controller, voice control interaction using one or more microphones, a display or a touch screen, and the like. Embodiments of one or more speaker devices include circuits, hands-free or personal devices that receive / transmit calls of cellular phones and convert either audio or audio / video (e.g., video chat or video conferencing). For example, it may include whether an ear bug or a headset is used.

One or more embodiments may include a TV processing device and an antenna for receiving a TV program over the Internet (eg, via a Wi-Fi connection, cable, satellite or air). Some embodiments may include memory devices for storing media (eg, audio, audio / video, etc.) for playback in a mobile state. In one example, embodiments of the speaker device may include a rechargeable battery or power source for the power source, solar cell charging function, plug-in (eg, AC / DC) function.

Embodiments of one or more speaker devices may include a processing device capable of communicating with other electronic devices, such as a smart phone, that provides information to a user, for example, when ambient noise is too high to be heard by the smart phone speaker. have. One or more embodiments may include the type of song / audio being played, the date of time for use or playback, the amount of time the speaker device is used, the location of use (e.g., information from other devices (e.g., from GPS or at a location, e.g. Processing and communication device for communicating with a server or cloud-based service that collects information about the use of embodiments of the speaker, such as Bluetooth information.

Embodiments of one or more speaker devices may include an amplification device or signal enhancement processing device for power amplification of a received audio signal. One or more embodiments may include a signal processing device for filtering / clarifying a signal that may include noise.

One or more embodiments may include a speaker enclosure made of one or more materials, such as plastic, wood, metal, metal alloy, composite, laminate, and the like. In addition, one or more embodiments may include a powered amplifier (eg, a USB power source, a DC power source, an AC power source, etc.).

30 is a high level view illustrating an example of an embodiment employing a plurality of embodiments of a speaker device including a compression driver for sound generation. In an exemplary system, a receiver / amplifier 3040 that includes a wireless transmitter 3045 may include a left speaker device 3010, a right speaker device 3010, a center (channel) speaker device 3011, a left wireless surround speaker device ( 3012 and the right wireless surround speaker device 3012 by wire or wirelessly. It should be noted that embodiments of additional speaker devices and / or other components (eg, subwoofers) may be added to the exemplary system. In an embodiment, a process, processor, memory, integrated circuit, or the like may be incorporated with the speaker enclosure for sound processing in any combination of speaker elements (eg, tweeter, mid range, woofer, etc.).

As an example, the left and right speaker device 3010 includes a tweeter 3015 having an acoustic outlet 3065 near the top 3020 of the speaker enclosure. The woofer (or midrange) speaker 3016 is arranged such that the reproduced sound is emitted from the sound outlet 3066. The left and right speaker devices 3010 may have various shapes, for example, cylinders, spheres, ellipses, polygons, and the like. The left and right speaker device 3010 has

connection terminals

3001 and 3002 for connecting the speaker wire 3030 to the receiver / amplifier 3040.

As an example, the center channel speaker device 3011 may include a plurality of speaker drivers (eg, tweeter, midrange, woofer, etc.). In the center channel speaker device 3011 shown, the tweeter 3050 is disposed at the end of the speaker enclosure of the center speaker device 3011 and the midrange 3051 is located at or near the center of the speaker enclosure. The center channel speaker device 3011 may have various shapes, for example, a cylindrical shape, a spherical shape, an elliptic shape, a polygonal shape, or the like. The center channel speaker device 3011 has

connection terminals

3003 and 3004 for connecting the speaker wire 3030 to the receiver / amplifier 3040.

As an example, the wireless surround speaker 3012 may include a plurality of speaker drivers (eg, tweeter, midrange, woofer, etc.). The illustrated wireless surround speaker device 3012 has a tweeter 3055 (and / or midrange) disposed near the top of the speaker enclosure having an acoustic outlet 3080 for acoustic radiation. The wireless surround speaker 3012 may have various shapes, for example, a cylindrical shape, a spherical shape, an elliptic shape, a polygonal shape, or the like. The wireless surround speaker device 3012 has a wireless receiver 3070 for receiving audio (and communication) from the receiver / amplifier 3040.

31 shows a spherical speaker device according to the embodiment. As an example, the speaker device 3100 may be a two-direction (eg, tweeter and woofer) speaker device including a compression driver. As an example, the spherical speaker device 3100 includes a tweeter 3110 having an acoustic outlet 3120 (for acoustic emission) and a woofer 3130 having an outlet 3140 (for acoustic emission). .

Although described with reference to a specific type in the above embodiments, other versions are possible. Accordingly, the spirit and scope of the appended claims should not be limited to the description of the preferred versions contained herein.

Claims

A speaker enclosure having a first acoustic outlet extending along the circumference;

A first speaker driver disposed inside the speaker enclosure, the first speaker driver generating a first sound; And

A first phase plug disposed inside the speaker enclosure, the first phase plug being at least partially spaced from the first speaker driver and configured to guide the first sound generated in the first speaker driver towards the first sound outlet; Including, the speaker device.
The method of claim 1,

And the angular range of the first sound spreading around the speaker enclosure through the first sound outlet is greater than or equal to 180 degrees.
The method of claim 1,

The first speaker driver includes a voice coil,

And the first phase plug extends inwardly of the voice coil.
The method of claim 1,

The first speaker driver has a cone shape,

The first phase plug has a tab connected to the first acoustic outlet at an end thereof, and includes one of a phase plug having a rod shape at the center, a phase plug having a dome shape at the center, and a phase plug having an inverted dome shape at the center Including, the speaker device.
The method of claim 1,

The first speaker driver has a cone shape,

And the first phase plug has a dome shape at the center and includes a phase plug having a tab connected to the first acoustic outlet between the center and the end.
The method of claim 1,

The first speaker driver has a dome shape,

The first phase plug may include a phase plug having a tab connected to the first acoustic outlet at an end, a phase plug having a straight tab connected to the first acoustic outlet between an end and a center, and a first plug between the end and the center. And one of the tabbed phase plugs connected to the acoustic outlets.
The method of claim 1,

The first speaker driver has a planar shape,

The first phase plug, the tab is connected to the first acoustic outlet at the end, the speaker device comprising a phase plug having a planar shape.
The method of claim 1,

The compression ratio of the first speaker driver is based on a value obtained by dividing the surface area of the first speaker driver by the surface area of the first acoustic outlet.
The method of claim 1,

The speaker enclosure includes one of an elliptic shape, a cylindrical shape, a spherical shape, and a polygonal shape.
The method of claim 1,

And the first acoustic outlet has a ring shape surrounding the periphery of the speaker enclosure.
The method of claim 1,

The speaker enclosure further comprises one or more second acoustic outlets spaced apart from the first acoustic outlet and extending along a circumference.
The method of claim 11,

At least one second speaker driver for generating a second sound different from the first sound and disposed inside the speaker enclosure; And

A second phase plug disposed inside the speaker enclosure, the second phase plug being at least partially spaced from the second speaker driver and configured to guide the second sound generated in the second speaker driver towards the second sound outlet; Further comprising, the speaker device.
The method of claim 12,

And an angular range of the second sound that is spread through the second sound outlet to the periphery of the speaker enclosure is greater than or equal to 180 degrees.
The method of claim 12,

The first speaker driver is any one of a tweeter, a midrange, and a woofer.

And the second speaker driver is another one of a tweeter, a midrange, and a woofer.
The method of claim 1,

The speaker device comprises one of a wired speaker and a wireless speaker.