JP6286158B2 - Loudspeaker system with dual electromagnetic assembly - Google Patents

Description

The present disclosure relates generally to a loudspeaker system , and more particularly to a loudspeaker system that includes two electromagnetic structures.

  Loudspeakers have been used for many years to provide audio output to the audience. Electric signals representing sounds having various characteristics are converted into vibrations of the diaphragm by a loudspeaker. Such movement of the diaphragm produces sound waves that can be heard by a person nearby. Typically, the diaphragm of the loudspeaker is formed in a cone shape, and sound waves are emitted from the cone in a general direction in which the opening end of the cone is directed.

  A loudspeaker typically uses a voice coil. The voice coil is wound around a hollow cylinder or tube made of paper, aluminum, resin, or the like, and is positioned in the magnetic field of the permanent magnet. The hollow cylinder or tube is connected to the diaphragm. When current flows through the coil, a magnetic field is generated around the hollow cylinder or tube. The hollow cylinder or tube is attracted or repelled by the magnetic field of the permanent magnet based on the direction of the current. When the direction of the current is switched, the attractive force or repulsive force is also switched. In this way, the hollow cylinder or tube moves back and forth and moves the diaphragm back and forth. This vibration produces the sound produced by the loudspeaker.

The present disclosure is a loudspeaker system. The loudspeaker system includes a plurality of drivers. Each driver includes a front surface, a rear surface, and an axis of symmetry extending substantially perpendicularly to both the front surface and the rear surface, and each driver includes a low axis substantially along the axis of symmetry from the front surface. It is configured to emit high frequency sound waves and high frequency sound waves. Each of the plurality of drivers includes a first speaker, a second speaker, and an audio signal driver. The first speaker includes a first truncated cone frame part configured to support a first acoustic diaphragm, and a first voice coil coupled to the first acoustic diaphragm, A first voice coil having a positive audio lead and a second negative audio lead; and a first magnet assembly configured to suspend the first voice coil in a first magnetic field, And a first magnet assembly coupled to the first acoustic diaphragm. The second speaker includes a second truncated cone frame part configured to support a second acoustic diaphragm, and a second voice coil coupled to the second acoustic diaphragm, A second voice coil having a positive audio lead and a second negative audio lead; and a second magnet assembly configured to suspend the second voice coil in a second magnetic field, And the second magnet assembly coupled to the second acoustic diaphragm. The audio signal driver is electrically connected to each of the first voice coil and the second voice coil, and the first acoustic vibration plate and the second acoustic vibration plate vibrate all at once. One voice coil and the second voice coil are wired to opposite electrodes. The present loudspeaker system includes a first support mechanism having an interior. The first support mechanism has a center point at which a front surface of each of the plurality of drivers is oriented toward the inside and the axis of symmetry extending from the front surface of each of the plurality of drivers is located at the center of the inside or It is configured to support the plurality of drivers arranged to intersect a relatively small volume portion in the vicinity. The listening area is outside the inside of the first support mechanism.
  In another aspect of the present disclosure, in the loudspeaker system, the first support mechanism is configured to support the plurality of drivers in a substantially spherical shape.
  In another aspect of the present disclosure, in the loudspeaker system, the first support mechanism is configured to support the plurality of drivers in a substantially hemispherical shape.
  Another aspect of the present disclosure further includes an inert ball disposed within the first support mechanism to reduce resonance in the loudspeaker system.
  In another aspect of the present disclosure, in the loudspeaker system, the plurality of drivers each include a muffler disposed on the back surface such that low-frequency and high-frequency sound waves do not leak from the back surface of the plurality of drivers. .
  According to another aspect of the present disclosure, the loudspeaker system further includes a spherical second support mechanism disposed concentrically with the first support mechanism formed in a spherical shape, and the second support mechanism includes a plurality of second support mechanisms. It is configured to support the woofer driver.
  Another aspect of the present disclosure is a plurality of woofer drivers in the loudspeaker system, each woofer driver extending through a front surface, a rear surface, and substantially perpendicular to both the front surface and the rear surface. Each of the woofer drivers includes a symmetric axis, and each woofer driver is configured to generate a low-frequency sound from the front surface substantially along the symmetric axis. A second support mechanism having a spherical shape arranged concentrically with the first support mechanism, wherein the second support mechanism is configured such that the front surfaces of the plurality of woofer drivers are directed toward the inside of the first support mechanism, and The symmetry axis extending from the front surface of each of the woofer drivers is relatively small on or near the center point located at the center of the inner space of the first support mechanism formed in a spherical shape. Further comprising configured to support the plurality of woofer drivers arranged to intersect, and the second support mechanism, against a volume portion. In such a loudspeaker system, the first support mechanism formed in a spherical shape is further configured to support the plurality of drivers at substantially equal intervals from the center point. It is preferable that the second support mechanism having a shape is further configured to support the woofer driver at substantially equal intervals from the center point.
  According to another aspect of the present disclosure, in the loudspeaker system, the first speaker and the second speaker are arranged with wide angle ends of the first truncated cone frame portion and the second truncated cone frame portion facing each other. ing.
  According to another aspect of the present disclosure, in the loudspeaker system, the first speaker and the second speaker are arranged with wide angle ends of the first truncated cone frame portion and the second truncated cone frame portion facing each other. In addition, at least a part of the first acoustic diaphragm and the second acoustic diaphragm are joined.
  According to another aspect of the present disclosure, in the loudspeaker system, the first acoustic diaphragm and the second acoustic diaphragm have a truncated cone shape. Moreover, in such a loudspeaker system, it is preferable that the periphery of the wide-angle end of the first acoustic diaphragm is joined to the periphery of the wide-angle end of the second acoustic diaphragm.
  According to another aspect of the present disclosure, in the loudspeaker system, at least an edge portion of the first acoustic diaphragm is in contact with at least an edge portion of the second acoustic diaphragm, and at least the second acoustic diaphragm. The audio signal driver provides a signal to the first voice coil to generate a first vibration force that directly acts on the first acoustic diaphragm, One vibration force is transmitted through the edge portion of the first acoustical diaphragm that mechanically transmits the first vibration force from the edge portion of the first acoustical diaphragm to the edge portion of the second acoustical diaphragm. Is transmitted to the second acoustic diaphragm, and the audio signal driver is configured to transmit the second acoustic signal. In order to generate a second vibration force that acts directly on the diaphragm, a signal is provided to the second voice coil, and the second vibration force is generated from the edge portion of the second acoustic diaphragm. The force is transmitted to the first acoustical diaphragm through the edge part of the second acoustical diaphragm that mechanically transmits force to the edge part of the first acoustical diaphragm.

  According to another aspect of the present disclosure, a loudspeaker assembly is provided. The speaker assembly includes a first speaker. The first speaker is a first frustoconical frame portion that supports the first acoustic diaphragm, and a first voice coil that is joined to the first acoustic diaphragm, and includes a first positive lead wire and a second voice coil. A first voice coil having a negative lead wire; and a first magnet assembly configured to suspend the first voice coil in a first magnetic field, wherein the first voice coil is joined to the first truncated cone frame portion. And the first magnet assembly. The loudspeaker assembly further includes a second speaker. The second speaker is a second frustoconical frame portion that supports the second acoustic diaphragm, and a second voice coil joined to the second acoustic diaphragm, and includes a first positive lead wire and a second voice coil. A second voice coil having a negative lead wire and a second magnet assembly configured to suspend the second voice coil in a second magnetic field, the second voice coil being joined to the second frustoconical frame portion. And the second magnet assembly. An audio signal driver is electrically joined to each of the first and second voice coils, and the first and second voice coils are on opposite sides so that the first and second acoustic diaphragms vibrate all at once. Wired to the pole. In one aspect, the first and second speakers are arranged with the wide-angle ends of the first and second truncated cone frame portions facing each other.

  The foregoing and other aspects, features, and advantages of the present disclosure will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.

FIG. 3 is a side view of a loudspeaker driver according to various embodiments of the present disclosure.

2 is a cutaway view of the loudspeaker driver of FIG. 1 in accordance with various embodiments of the present disclosure. FIG.

1 is a cutaway view of a loudspeaker driver according to various embodiments of the present disclosure. FIG.

FIG. 3 is a three-dimensional (3D) view of a speaker system according to the present disclosure.

The axis of a driver is illustrated.

FIG. 6 illustrates a high-frequency propagation pattern of a second wave along the driver axis. FIG. 6 illustrates a low-frequency propagation pattern of a second wave along the driver axis.

FIG. 5 is a cross-sectional view of the speaker system shown in FIG. 4 according to an embodiment of the present disclosure.

FIG. 6 is a cross-sectional view of a speaker system according to another embodiment of the present disclosure.

3 is a 3D view of another embodiment of a speaker system according to the present disclosure. FIG.

  For ease of understanding, the same reference numbers are used in the figures where common equivalent elements can be shown. For the purpose of drawing, the diagram of the drawing is simplified and not necessarily to scale. The accompanying drawings are illustrative of embodiments of the disclosure and are not to be considered as limiting the disclosure scope to which other equally effective embodiments may be tolerated. Correspondingly, it has been considered without further reference that features or steps of one embodiment can be beneficially employed in other embodiments.

  This description is directed to the principles of the present disclosure. Thus, it will be appreciated that those skilled in the art will be able to devise various modifications that implement the principles contained in the present disclosure and its spirit and scope without explicit disclosure or illustration. Will.

  All illustrations and conditional statements contained herein are intended for educational purposes to assist the reader in understanding the principles and concepts of this disclosure contributed by the inventors to advance the technology. Should be construed as being limited to the examples and conditions so described in detail.

  Moreover, all descriptions describing principles, aspects, and embodiments of the disclosure are intended to include structural and functional equivalents, as well as these specific examples. In addition, such equivalents include both currently known equivalents and equivalents developed in the future as well, ie, any element that performs the same function regardless of structure. Is intended.

  FIG. 1 is a side view of one embodiment of a loudspeaker driver 10. According to various embodiments of the present disclosure, the loudspeaker driver 10 includes a frame 12 having holes 14 or openings. Since the frame 12 surrounds and protects the internal components of the loudspeaker driver 10, in particular the components that generate sound, the holes 14 allow sound waves to escape in various directions. In this case, the loudspeaker driver 10 described in the present disclosure may be an omnidirectional speaker. As shown, the frame 12 may include two symmetrical sections 13, 15 such as a truncated cone. The two sections 13 and 15 may be arranged along the barrier 21 so that the wide-angle ends 17 and 19 face each other and are joined to each other as illustrated. In other embodiments, the frame 12 may include any other suitable shape. Also, the frame 12 is configured to a suitable size based on dimensional limitations and / or desired frequency characteristics. The loudspeaker driver 10 also includes a first magnet assembly 16 and a second magnet assembly 18. Each magnet assembly 16 and 18 may include at least one permanent magnet for generating a magnetic field. The magnetic field generated by the first and second magnet assemblies 16 and 18 may be arranged so that the south pole is directed toward the north pole, or in another embodiment, the magnetic field is You may arrange | position so that a pole and a south pole may become the opposite direction (repulsive mutually).

  FIG. 2 is a cutaway view of the loudspeaker driver 10 of FIG. According to various embodiments of the present disclosure, the loudspeaker driver 10 further includes a diaphragm 20 or other type of membrane. It should be noted that the diaphragm 20 comprises any suitable material. The diaphragm 20 may be flat and substantially vertical as shown. The diaphragm 20 may be connected to the frame 12 by a suspension 22. In some embodiments, the suspension 22 may be omitted, and instead the diaphragm 20 may be connected directly to the frame 12. The suspension 22 may be a ring suspension that surrounds the outer edge of the diaphragm 20 when present in various embodiments. The suspension 22 appropriately holds the diaphragm 20 and allows the diaphragm 20 to vibrate for the purpose of generating sound waves. Because of the inherent configuration of the substantially flat diaphragm 20 instead of the conventional cone-shaped membrane, the suspension 22 is sufficient without the need for additional suspension mechanisms such as “spider” suspension elements. It should be noted that the diaphragm 20 can be supported on the other side.

  The loudspeaker driver 10 also includes a connection tube 24. The connecting tube 24 extends from the first magnet assembly 16 to the second magnet assembly 18. The connection tube 24 may be made of a material such as paper, aluminum, or resin. In some embodiments, the connecting tube 24 may include a hollow end. In this way, the connecting tube 24 is suitably held by posts 25, 27 protruding from each magnet assembly 16, 18 respectively. The connecting tube 24 may be configured to slide along the posts 25 and 27. A slit that prevents air pockets from being formed at the hollow end may be formed on the side of the post and the inside of the connection tube 24.

  It should be appreciated that the connection tube 24 may have other shapes, such as a connection member, a solid cylinder member, a rod, and the like.

  The connection tube 24 is inserted through the hole of the diaphragm 20. In some embodiments, half of the connecting tube 24 may be positioned on one side of the diaphragm 20 and the other half may be positioned on the other side. Further, the connection tube 24 may be configured such that its axis is perpendicular to the plane of the diaphragm 20. In addition, the connection tube 24 may pass through or intersect the center of the diaphragm 20. The connecting tube 24 may also be configured to be joined to the diaphragm 20 at the intersecting area, and the intersecting area is bonded by any suitable type of adhesive 26. May be. According to some embodiments, the adhesive 26 may be a glue or other suitable adhesive that can form a ring around the outside of the connecting tube 24.

  In addition, the loudspeaker driver 10 includes a first voice coil 28 and a second voice coil 30. The first and second voice coils 28 and 30 include an electric wire provided with a covering material that covers the core wire. The first voice coil 28 is wound around the first end of the connection tube 24, and the second voice coil 30 is wound around the second end of the connection tube 24. The voice coils 28 and 30 are not only wound around the connection tube 24, but are also connected to the connection tube 24 so that the connection tube 24 sequentially moves due to the movement of the voice coils 28 and 30 due to magnetic force. .

  As shown, the voice coils 28 and 30 may be wound in the same direction. However, in other embodiments, the voice coils 28 and 30 may be wound in opposite directions. One end of each voice coil 28 and 30 is joined to a first audio lead 32, shown as a positive ("+") lead. The other end of each voice coil 28 and 30 is joined to a second audio lead 34, shown as a negative ("-") lead. The second audio lead wire 34 may be a positive or negative lead wire having a color such as black or red. As shown, the audio lead from one voice coil is connected to a specific audio lead from the other voice coil. However, according to some embodiments, an audio lead from one voice coil may be connected to another audio lead from the other voice coil. The particular design depends primarily on the directivity of the two magnetic field poles (ie, N and S) generated by the permanent magnets of the first and second magnet assemblies 16 and 18.

  The magnet assemblies 16 and 18 may each comprise one or more permanent magnets configured to generate a permanent magnetic field in a general direction relative to the end of the connecting tube 24. For example, according to some embodiments, the permanent magnet may be a ring magnet that surrounds the voice coils 28 and 30. In other embodiments, the permanent magnet may include another shape and may be positioned along the axial direction of the connecting tube 24. These or other configurations may be used to generate a permanent magnetic field in a general direction with respect to the center point of the voice coils 28 and 30.

  According to some embodiments, the loudspeaker driver 10 may simply comprise an acoustic diaphragm 20 and a connecting tube 24 as shown in FIG. The connecting tube 24 includes a first section proximate to the first end of the connecting tube 24, a second section proximate to the second end of the connecting tube 24, and an intermediate section between the first and second sections. You may have. The loudspeaker driver 10 also includes a first voice coil 28. The first voice coil 28 is connected to and surrounds at least a part of the first section of the connection tube 24. The first voice coil 28 has a first audio lead wire and a second audio lead wire. The loudspeaker driver 10 also includes a second voice coil 30. The second voice coil 30 is connected to and surrounds at least a part of the second section of the connection tube 24. The second voice coil 30 has a first audio lead wire and a second audio lead wire. The loudspeaker driver 10 is also configured to suspend the first voice coil 28 in the first magnetic field and the first magnet assembly 16 configured to suspend the first voice coil 28 in the first magnetic field. Second magnet assembly 18. The connection tube 24 intersects with the acoustic diaphragm 20, and an intermediate section of the connection tube 24 is connected to the acoustic diaphragm 20.

  According to additional embodiments, the loudspeaker driver 10 described above is further configured such that the first magnet assembly 16 comprises a first permanent magnet and the second magnet assembly 18 comprises a second permanent magnet. It may be. For example, the first permanent magnet may be a ring magnet positioned around the first voice coil 28, and the second permanent magnet may be a ring magnet positioned around the second voice coil 30. Good. The first magnet assembly 16 and the second magnet assembly 18 may include an alignment structure configured to be able to move the connection tube 24 substantially in the axial direction. For example, the axial direction may be defined as the axial direction of the connection tube 24. In the loudspeaker driver 10, the first voice coil 28 and the second voice coil 30 cooperate with each other when the first voice coil 28 and the second voice coil 30 simultaneously receive electrical signals. In addition, the connecting tube 24 may be defined so as to be substantially axially back and forth.

  According to some embodiments, the loudspeaker driver 10 described above is further defined to be substantially flat when the acoustic diaphragm 20 is stationary. For example, the acoustic diaphragm 20 may be stationary when no electrical signal is supplied to the loudspeaker driver 10. When an electrical signal (for example, an audio signal) is received, the diaphragm 20 vibrates so that a sound wave is emitted from the loudspeaker driver 10. In some embodiments, the acoustic diaphragm 20 may have a circular shape, but according to another embodiment, the diaphragm is square, rectangular, or another suitable shape. Also good.

  In addition, the loudspeaker driver 10 also includes a frame 12. The frame 12 may be configured to support the first magnet assembly 16 and the second magnet assembly 18 and may be configured to maintain a preset spacing therebetween. The loudspeaker driver 10 may include a suspension 22 (for example, a ring suspension) configured to connect the edge of the acoustic diaphragm 20 to the frame 12. The suspension 22 may have any suitable shape based on the shape and edge dimension of the corresponding diaphragm 20. Further, the shape of the suspension 22 may be based on the internal dimensions and shape of the frame 12. The frame 12 preferably includes at least one hole 14 that exposes the acoustic diaphragm 20 to the periphery. The holes 14 allow sound to be emitted from the inside of the frame 12 to the surrounding area where the audience can hear the sound.

  In addition, the loudspeaker driver further connects the first audio lead of the first voice coil 28 to the first audio lead of the second voice coil 30 and the second audio lead of the first voice coil 28 is the first. Two voice coils 30 are defined to be connected to the second audio lead wire. In this case, the pole of the first magnetic field is substantially aligned with the pole of the second magnetic field. Therefore, while the second voice coil 30 is applying a pulling force, the first voice coil 28 is applying a pressing force to the diaphragm 20, while the second voice coil 30 is applying a pressing force. The first voice coil 28 applies a pulling force. The force in this case is energizing to move the connecting tube 24 in the same direction without the voice coils 28 and 30 acting oppositely.

  In another embodiment, the first voice coil 28 and the second voice coil 30 are wound in the same direction around the connection tube 24 so that the pole of the first magnetic field is substantially opposite the pole of the second magnetic field. It may be. In other words, both N poles are inside (or outside) and the S poles are outside (or inside). In this case, the first voice coil 28 and the second voice coil 30 are wound in the opposite directions around the connection tube. This configuration also provides an additional force to move the connecting tube 24 in the same direction without the voice coils 28 and 30 acting in opposition.

  As described herein, the force acting on the diaphragm 20 can basically be doubled by the two electromagnetic structures. For example, in any electrical signal, one voice coil applies a pushing force (i.e., away from the center of the frame 12) while the other voice coil pulls (i.e., away from the center of the frame 12). (To the center of the frame 12) is applied to the connecting tube 24. The result is a rapid reaction of the diaphragm 20 and a rapid movement. It increases the dynamic range of the loudspeaker driver 10. Since the diaphragm moves at high acceleration by both the pulling force and the pushing force, the diaphragm transmits the force more effectively when generating sound. That is, it is highly efficient in power conversion of electricity into sound energy. Also, the voice coil that is pressed and pulled in a dual manner can extend both the high frequency response and the low frequency response of the loudspeaker driver 10.

  Furthermore, the symmetrical aspect of the loudspeaker driver 10 described in this disclosure allows for better control of the diaphragm 20, thereby resulting in more accurate audio signal reproduction. By applying pressing and pulling force to the diaphragm, the vibration of the diaphragm follows the acoustoelectric signal more accurately, resulting in a higher definition of sound reproduction compared to conventional devices.

  The teachings and principles of the present disclosure may constitute various embodiments that achieve a loudspeaker with increased dynamic range. In an embodiment, two conventional speakers may be joined together by openings, that is, the diaphragm and the diaphragm, and the poles may be wired in opposite directions so that the two diaphragms vibrate all at once. In such an embodiment, the two diaphragms vibrate all together as if they were one signal diaphragm. Such an embodiment is illustrated in FIG.

  Referring to FIG. 3, the speaker assembly 100 includes first and second speakers 112-1 and 112-2. The first speaker 112-1 includes a truncated cone frame portion 113 having a cone-shaped or truncated cone-shaped diaphragm 120-1 joined to the frame portion 113 by the suspension 122. The first speaker 112-1 further includes a magnet assembly 116 and a voice coil 128 as described above. Similarly, the second speaker 112-2 includes a truncated cone frame portion 115 having a cone-shaped or truncated cone-shaped diaphragm 120-2 joined to the frame portion 115 by the suspension 122, a magnet assembly 118, and a voice coil 130. Including. In the first and second speakers, the wide-angle ends 117 and 119 of the frame portions 113 and 115 face each other, and at least a part of the diaphragms 120-1 and 120-2, for example, the part 123 is connected to each other in this state. It is comprised so that. Since each diaphragm 120-1, 120-2 has a cone shape or a truncated cone shape, the portion 123 is circular, and hence the diaphragms 120-1, 120-2 are connected in a circle. That should be scrutinized. In another embodiment, the diaphragms 120-1 and 120-2 are not in contact with each other.

  The speaker assembly 100 further includes an audio signal driver 150. The audio signal driver 150 is for electrically driving the voice coils 128 and 130 including the positive output unit 152 and the negative output unit 154. Illustratively, the audio signal driver includes an audio amplifier, receiver, etc., or any other known device that provides an electrical signal indicative of the audio signal. Each voice coil 128, 130 includes a positive audio lead 132 and a negative audio lead 134. In this embodiment, the voice coils 128 and 132 are connected to opposite poles so that the two diaphragms vibrate simultaneously. For example, the positive audio lead 132-1 of the voice coil 128 is connected to the positive output 152 of the driver 150, while the positive audio lead 132-2 of the voice coil 130 is the negative output of the driver 150. 154. Similarly, the negative audio lead 134-1 of the voice coil 128 is connected to the negative output 154 of the driver 150, while the negative audio lead 134-2 of the voice coil 130 is connected to the positive output of the driver 150. Connected to output 152. In this case, while the second voice coil 130 applies a pulling force to the diaphragm 120-2, the first voice coil 128 applies a pressing force to the diaphragm 120-1, and the second While the voice coil 130 applies a pressing force, the first voice coil 128 applies a pulling force. In this way, the two diaphragms 120-1 and 120-2 vibrate all together as if they were one signal diaphragm.

  In another embodiment, a wooless, boxless loudspeaker system is provided that includes a plurality of drivers and a driver placement method. In this embodiment, the loudspeaker system uses a multi-driver as described above, and the low frequency is enhanced by the output of other tweeter drivers, while the high frequency is evenly distributed by drivers arranged at equal angles. Generated sound wave space. The driver can be placed anywhere except where the angle is important. That is, the arrangement is concentric and equiangular. The configuration of the driver is three-dimensional, so the resulting shape or form can be cubic, flat, spherical, cylindrical, or other shapes.

  Referring to FIG. 4, there is shown a speaker system 200 viewed in three dimensions (3D) according to the present disclosure. The speaker system 200 includes a plurality of drivers 10 as described above with reference to FIGS. 1 to 3 and has a three-dimensional spherical configuration.

  Referring to FIG. 5A, there is a geometrically symmetric virtual axis 214 for each driver 10. Each driver 10 includes a front or side 216 and a back or back 218. The virtual axis 214 extends in both directions from the back surface 218 of the driver 10 through the front surface 216. Since the driver's diaphragm moves along an axis 214, this axis also indicates the direction of propagation of the sound wave, generally propagating from the driver's front face 216 along this axis 214. FIG. 5B illustrates a high frequency propagation pattern along axis 214 at driver 212, and FIG. 5C illustrates a low frequency propagation pattern along axis 214 at driver 212. In this embodiment, a seal or muffler 224 is added to the rear or back side of the driver 10 to prevent the previously emitted frequency and the later emitted frequency from interfering with each other.

  In order to support the multi-driver 10, various support mechanisms can be configured. The drivers 10 may be spaced apart such that the symmetry axis extending from the front of the driver intersects at a point located in the center of the inner volume of the support structure. In some embodiments, the axis of symmetry may pass through a relatively small volume at or near the center of the interior. The driver 10 may extend equally around the inside where each face of the driver 10 is oriented in the directed direction. When the drivers 10 are evenly arranged, the angles formed by their axes of symmetry may be substantially equal. In this configuration, the sound wave generated from the driver 10 is directed inward toward the center of the support structure.

  FIG. 6 shows a cross-sectional view of the speaker system 200 shown in FIG. As illustrated in FIG. 6, the driver 10 may be disposed on the support mechanism 230 so that the axis 214 of each driver 10 converges forward with respect to one point of the space 220. In this embodiment, the drivers are equidistant from the convergence point 220. All drivers preferably share a point that is the origin and the axis converges, but the driver's distance to this point need not be the same, i.e. the various drivers differ from the convergence point. It may be arranged at a distance. As a result, the arrangement of the drivers is flexible to form a flat plate shape, a cylindrical shape, a square shape, a spiral shape, or a spherical shape. For example, in some embodiments, a configuration may be provided in which the drivers are arranged in an oval or protruding shape. In this embodiment, each driver is positioned at a relatively different angle with respect to the other driver while ensuring forward convergence of each driver's axis 214 that converges to a single point 220.

  Returning to FIG. 6, the drivers 10 are arranged such that the axis of symmetry 214 of each driver 10 converges to a single point 220 in space. In some embodiments, the driver may be located substantially equidistant from the single point 220. In such a configuration, general lines through which sound waves generated from the driver 10 propagate are collected at a common point 220. From the common point 220, the sound wave continues to propagate through the gap formed between the drivers 10. In this way, the sound waves are equally distributed to the outside area inside the support mechanism 230, and the listening space has no bias. By providing such a configuration, the driver enhances the low frequencies that can reach the listener, regardless of whether the driver has set a standard for the listener.

  The loudspeaker system configured as described above has no midrange driver and no woofer driver. Furthermore, the loudspeaker system configured as described above comprises a box and / or enclosure that is commonly employed in conventional speakers. Since a normal speaker driver is mounted in a closed box, such a configuration is effectively a “drum” that imparts its characteristic resonance to the sound material. Although the driver 10 is assembled to several types of support mechanisms 230, the structure 230 is minimal to support the driver and does not alter or affect the sound quality of the speaker system. In some embodiments, the support mechanism 230 is comprised of a wire frame. The wire frame supports the driver without any coloration effect on the sound generated by the speaker system. It will be appreciated that other support mechanisms constructed from a variety of known materials may be employed to position the driver based on the teachings of the present disclosure. For example, the support mechanism may be configured in a tree-like structure, a honeycomb structure having a hollow core, or the like. In the speaker system based on the principle of the present disclosure, the influence on the timbre due to the resonance of the box or enclosure is thus completely eliminated.

  In addition, an inert muffler or baffle ball 221 may be placed inside the support mechanism to reduce resonance. Preferably, ball 221 is made of a material that is inert to sound frequencies, such as gypsum, styrene foam, cement, or any other material that does not resonate with any sound frequencies.

Numerous advantages can be achieved by employing the principles of the present disclosure.
1. The speaker system of the present invention can be configured in a ball shape, a column, a pyramid, a thin panel, an egg shape, or the like.
2. The speaker system has no restrictions on the location. For example, as shown in FIG. 4, the speaker system is configured as a three-dimensional spherical object that emits sound waves in all directions in space and equally in any direction, and is therefore called omnidirectional. The There is no restriction on the relative relationship of the listener to the speaker system, and vice versa.
3. The speaker system will sound the same regardless of the relative position of the listener, whether it is sitting, standing or moving.
4). The speaker system is not affected by the sound of the woofer or the box.
5). Since the speaker system is compact and requires only a small installation space, it is ideal for installation in a narrow space like a car. In a further example, the speaker system shown in FIG. 4 can be installed on a cradle. The cradle can be a relatively small installation space, and a system installation space is provided on the placement part of the cradle.

  An ideal speaker system is a three-dimensional driver integration, but in some embodiments, the back half of the integration may be removed, leaving only the front half, as illustrated in FIG. . FIG. 7 shows a hemispherical configuration 250. As a result, the sound quality, particularly the low frequency part, ie the bass sound, is compromised. This is because the bass sound contributed by the back half of the aggregate is no longer available. In the listening area facing the front half of the stack, the low frequency intensity will be reduced, so the high frequency portion of the sound will be relatively strong. In order to correct this, an inactive muffler ball 221 is arranged in front of some drivers 10 to reduce the strength of the high frequency part of the sound. This is because the high frequency part of the sound is reflected back. Preferably, ball 221 is made of a material that is inert to the sound frequency, such as gypsum, styrene foam, cement, or any other material that does not resonate with any sound frequency.

  According to some embodiments, the general shape of the driver 10 as viewed from the front is circular or oval. It should be appreciated that by configuring the driver 10 in a circular or oval shape around the three-dimensional interior, a gap is formed between the drivers 10 no matter how close the drivers 10 are. Many of the sound waves directed towards the interior can therefore be emitted through the gap to the space outside the placement of the driver 10. Thus, by having the listening area outside the loudspeaker system, the audio signal will appear as if it originated from a single origin at or near the center point 220.

  Although the driver 10 shares a single origin and convergence to the axis of symmetry according to the embodiment of FIG. 6, the distance of the driver 10 to the point 220 need not be the same. That is, various drivers 10 may be arranged at different distances from the convergence point 220. As a result, the driver arrangement can be flexible in some embodiments, such as planar, cylindrical, cubic, spiral, spherical, etc. For example, the driver 10 may be arranged in an egg shape or a protruding shape. In such an embodiment, each driver is positioned at a different angle with respect to the other driver while ensuring that the symmetry axis of each driver intersects a common point. In some embodiments, the axis of symmetry 214 intersects a relatively small volume, elongate, or line segment that is at or near the point 220 located in the center of the driver 10 and support mechanism configuration. Also good.

  The speaker systems 200 and 250 of FIGS. 4 and 7 may include only a tweeter and may not include a midrange driver or a woofer driver. Furthermore, the speaker systems 200 and 250 may generally be configured without the box or enclosure employed in conventional speaker systems. As described above, a conventional speaker driver is generally mounted on the surface of a closed box having a diaphragm facing the outside in order to project sound waves linearly. For this reason, the conventional speaker box gives the sound wave a characteristic resonance that considerably changes the sound quality. According to various embodiments of the present disclosure, the driver 10 is mounted on a support structure that has little, if any, impact on the sound quality of the speaker systems 200,250. The support mechanism may include a minimal amount of material to support the driver 10 so as to reduce or even completely eliminate timbre effects from box or enclosure resonance.

  In certain embodiments, the support structure may be comprised of a wire frame. The wire frame supports the driver without any influence or influence on the timbre of the sound generated by the speaker system. It will be appreciated that other support mechanisms constructed from a variety of known materials may be employed to position the driver based on the teachings of the present disclosure. For example, the support mechanism may be configured in a tree-like structure, a honeycomb structure having a hollow core, or the like.

  In other embodiments, to extend the bus performance of the loudspeaker system, the loudspeaker system will employ a woofer driver in which spherical woofer drivers are concentrically arranged around the spherical driver. Referring to FIG. 8, a three-dimensional view of a speaker system 300 as an embodiment based on the present disclosure is illustrated. In this embodiment, the driver assembly is configured inwardly and in a spherical structure and is also oriented inwardly and is known for generating low frequencies, typically from 40 Hz to 1 KHz and above. It is supplemented by a woofer driver configured as follows. Each spherical assembly may be individually powered and the speaker system 300 may operate as a 2-way speaker system.

  In FIG. 8, the tweeter sphere includes a plurality of drivers 10 and is indicated by a broken line in an outer sphere composed of a plurality of woofers 302 surrounding the inner driver sphere. The inner tweeter sphere and the outer woofer sphere are concentric and share a common end point in space. It should be appreciated that the woofer driver 302 can be arranged in various configurations relative to the inner driver 10. For example, in some embodiments, the woofer driver 302 may be positioned directly behind the tweeter driver 10 to deflect the emitted sound waves. In other embodiments, each woofer driver 302 may be arranged such that the axis of symmetry passes through the center via the gap of the tweeter driver 10.

  Various features shown and described above are interchangeable, and features shown in one embodiment may be included in another embodiment.

  Although the present disclosure has been described with reference to the specifically illustrated embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present disclosure. Accordingly, numerous modifications can be made to the illustrated embodiments and other configurations can be devised without departing from the spirit and scope of the present disclosure as defined by the appended claims. It is.

Claims (15)

In the loudspeaker system,
A plurality of drivers, each driver including a front surface, a rear surface, and an axis of symmetry extending through and passing substantially perpendicular to both the front surface and the rear surface; Each of the plurality of drivers is configured to emit a low-frequency sound wave and a high-frequency sound wave along the symmetry axis.
A first frusto-conical frame configured to support the first acoustic diaphragm;
A first voice coil coupled to the first acoustic diaphragm, the first voice coil having a first positive audio lead and a second negative audio lead;
A first magnet assembly configured to suspend the first voice coil in a first magnetic field, wherein the first magnet assembly is coupled to the first acoustic diaphragm;
A first speaker including:
A second frustoconical frame configured to support the second acoustic diaphragm;
A second voice coil coupled to the second acoustic diaphragm, the second voice coil having a first positive audio lead and a second negative audio lead;
A second magnet assembly configured to suspend the second voice coil in a second magnetic field, wherein the second magnet assembly is coupled to the second acoustic diaphragm;
And including the second speaker,
An audio signal driver electrically connected to each of the first voice coil and the second voice coil, wherein the first acoustic diaphragm and the second acoustic diaphragm vibrate all at once. The audio signal driver in which the first voice coil and the second voice coil are wired to opposite electrodes;
A plurality of drivers comprising:
A first support mechanism having an interior, wherein the front surfaces of the plurality of drivers are oriented toward the interior, and the symmetry axis extending from the front surfaces of the plurality of drivers is located at the center of the interior. The first support mechanism configured to support the plurality of drivers arranged to intersect a relatively small volume portion at or near a center point; and
The listening area is a loudspeaker system that is outside the first support mechanism . The loudspeaker system of claim 1,
The first support mechanism is a loudspeaker system configured to support the plurality of drivers in a substantially spherical shape. The loudspeaker system of claim 1,
The first support mechanism is a loudspeaker system configured to support the plurality of drivers in a substantially hemispherical shape. The loudspeaker system of claim 1,
A loudspeaker system further comprising an inert ball disposed within the first support mechanism to reduce resonance. The loudspeaker system of claim 1,
Each of the plurality of drivers is a loudspeaker system including a muffler disposed on the back surface such that low-frequency and high-frequency sound waves do not leak from the back surface of the plurality of drivers. The loudspeaker system of claim 2,
A loudspeaker further comprising a spherical second support mechanism disposed concentrically with the first support mechanism formed in a spherical shape, wherein the second support mechanism is configured to support a plurality of woofer drivers. system. The loudspeaker system of claim 2,
A plurality of woofer drivers, each woofer driver including a front surface, a rear surface, and an axis of symmetry extending substantially perpendicular to both the front surface and the rear surface; The plurality of woofer drivers configured to generate low frequency sound substantially along an axis of symmetry;
A spherical second support mechanism disposed concentrically with the first support mechanism formed in a spherical shape, wherein each of the front surfaces of the plurality of woofer drivers is arranged on the first support mechanism. A relatively small volume on or near the center point located at the center of the inner space of the first support mechanism in which the symmetry axis extending from the front surface of each of the plurality of woofer drivers is spherically formed. The second support mechanism configured to support the plurality of woofer drivers arranged to intersect the portion;
A loudspeaker system further comprising: The loudspeaker system of claim 7,
The first support mechanism formed in a spherical shape is further configured to support the plurality of drivers at substantially equal intervals from the center point, and the second support mechanism in the spherical shape further includes A loudspeaker system configured to support the woofer driver at substantially equal intervals from the center point. The loudspeaker system of claim 1,
The loudspeaker system, wherein the first speaker and the second speaker are arranged with the wide-angle ends of the first truncated cone frame portion and the second truncated cone frame portion facing each other. The loudspeaker system of claim 1,
The first speaker and the second speaker are arranged with the wide-angle ends of the first truncated cone frame portion and the second truncated cone frame portion facing each other, and the first acoustic diaphragm and the second speaker. 2. A loudspeaker system in which at least a part of an acoustic diaphragm is joined. The loudspeaker system of claim 1,
The first acoustical diaphragm and the second acoustical diaphragm are loudspeaker systems having a truncated cone shape. The loudspeaker system of claim 11,
A loudspeaker system in which a peripheral edge at a wide angle end of the first acoustic diaphragm is joined to a peripheral edge at a wide angle end of the second acoustic diaphragm. The loudspeaker system of claim 1,
At least the edge portion of the first acoustic diaphragm is in contact with at least the edge portion of the second acoustic diaphragm, and is directly joined to at least the edge portion of the second acoustic diaphragm,
The audio signal driver provides a signal to the first voice coil to generate a first vibration force that directly acts on the first acoustic diaphragm.
The first vibration force is an edge portion of the first acoustic vibration plate that mechanically transmits the first vibration force from an edge portion of the first acoustic vibration plate to an edge portion of the second acoustic vibration plate. Is transmitted to the second acoustic diaphragm via
The audio signal driver provides a signal to the second voice coil to generate a second vibration force that directly acts on the second acoustic diaphragm;
The second vibration force is transmitted from the edge portion of the second acoustic vibration plate to the edge portion of the first acoustic vibration plate to mechanically transmit the second vibration force to the edge portion of the second acoustic vibration plate. A loudspeaker system which is transmitted to the first acoustic diaphragm via The loudspeaker system of claim 1,
At least the edge portion of the first acoustic diaphragm is in contact with at least the edge portion of the second acoustic diaphragm, and each driver is connected to the edge portion of the first acoustic diaphragm and the second acoustical plate. A loudspeaker system including a ring suspension configured to connect the edge portion of the diaphragm to a first truncated cone frame portion and a second truncated cone frame portion. 15. The loudspeaker system of claim 14, wherein the ring suspension is
A loudspeaker system surrounding the edge portion of the first acoustic diaphragm and the edge portion of the second acoustic diaphragm.

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