JP2016019129A - Speaker device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical speaker device which has a cover excellent in both of a function and a design property.SOLUTION: A speaker device 1 has a housing 10 provided with a speaker 101 on an upper surface, a cover 20, and a light-emitting part. The cover 20 covers an upper side of the housing 10 and an upper part of a side surface of the housing 10 at predetermined intervals from the housing 10, and is formed in a netlike or porous shape transmitting sound and light. Although the speaker 101 provided upward emits a voice upward, the voice is emitted while being scattered in all directions by the cover 20 and a diffuser 22. Light emitted from the light-emitting part is scattered in the cover, and meshes or small holes of the whole side surface of the cover 20 become bright. As a result, the vertical speaker device 1 enables a user to listen the voice from a side part, can be used as a decoration light, and becomes suitable for being installed on a table and the like.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vertical speaker device.

  In general speaker devices, a speaker unit is attached to the front surface of a housing (cabinet), and has a cover or a speaker grill (hereinafter collectively referred to as a cover) so as to cover the front surface. The cover prevents the speaker cone from being damaged and also has a function of improving the design of the front surface of the speaker device.

JP 2009-118182 A

  On the other hand, a non-directional speaker device in which a speaker unit is provided upward has been proposed (for example, Patent Document 1). In such a speaker device, if a cover is provided on the front surface of the speaker unit, it is possible to prevent scratches, but the design cannot be improved. It is also impossible to secure a space for providing lighting or the like.

  Therefore, an object of the present invention is to provide a cover structure that is excellent in both function and design in a vertical speaker device.

  The speaker device of the present invention includes a housing having a speaker unit provided on the upper surface, a cover, and a light emitting unit. The cover is formed in a net-like or porous shape that covers the upper part of the casing and the upper part of the side face of the casing at a predetermined distance from the casing, engages with the casing at the lower end, and allows sound and light to pass therethrough. ing. The light emitting unit is provided at a predetermined location in the cover. Further, a substantially conical diffuser may be provided inside the upper surface of the cover.

  The speaker provided upward emits sound upward, but is diffused and emitted in all directions by the cover (and the diffuser). Further, the light emitted from the light emitting unit is diffused inside the cover, and the mesh or small holes on the entire side surface (and upper surface) of the cover become bright. Thus, the voice can be viewed from the side with an upward (vertical) speaker device, and can be used as decorative illumination, which is suitable for installation on a table or the like.

  In the above invention, the casing may be configured by an upper casing and a lower casing having different shapes, and the cover may cover the upper surface and the side surface of the upper casing and engage with the lower casing.

  The upper casing may be a cylinder, the lower casing may be a cylinder having a larger diameter than the upper casing, and the cover may be a cylinder having substantially the same diameter as the lower casing. Thereby, it can be set as a substantially flush side, a design improves and handling becomes easy.

  The light emitting unit may be provided in a ring shape around the speaker unit, or may be provided in a baseboard shape that goes around the lower end of the upper housing. Moreover, both may be sufficient. Further, at least a part of the side surface covered with the cover of the housing may be mirror-finished. By doing in this way, the diffusibility of light can be improved more and illumination can be made more decorative.

  As described above, according to the present invention, it is possible to realize a speaker device which is vertical and can transmit sound and light in all directions and has an excellent design.

Front view, internal structure diagram, and bottom view of a speaker device according to an embodiment of the present invention Perspective view of speaker device Disassembled perspective view of speaker device The figure which shows the external appearance of the speaker apparatus which turned on LED in the dark place Block diagram of circuit of speaker device

  A speaker and a headpiece to which the present invention is applied will be described with reference to the drawings. FIG. 1 is a front view, an internal structure diagram, and a bottom view of a speaker device 1 according to an embodiment of the present invention. FIG. 2 is a perspective view of the speaker device 1. FIG. 3 is an exploded perspective view of the speaker device 1.

  The speaker device 1 according to this embodiment includes a vertically-oriented substantially cylindrical housing 10 and two speaker units 101 and 102 disposed on the upper surface and the lower surface of the housing 10. A speaker unit 101 installed on the upper surface is a high-frequency speaker, and is hereinafter referred to as a tweeter 101. The speaker unit 102 installed on the lower surface is a low-frequency speaker and is hereinafter referred to as a woofer 102.

  The housing 10 includes an upper housing 11, a lower housing 12, and baffle plates 14 and 15 described later. The lower housing 12 has a short cylindrical shape with a large diameter. The upper housing 11 is smaller in diameter than the lower housing 12 and has a flange 11C at the lower end. The flange 11C engages with the lower housing 12 and is airtightly joined by screws. A partition plate 11A is provided inside the upper housing 11, and the partition plate 11A divides the internal space of the housing 11 vertically.

  A tweeter baffle plate 14 is mounted upward on the upper surface of the upper housing 11. A tweeter 101 is mounted upward on the tweeter baffle plate 14. A tweeter cabinet 111 is configured in a space above the upper housing 11 divided by the tweeter baffle plate 14 and the partition plate 11A. A woofer baffle plate 15 is attached to the lower surface of the lower housing 12 downward. A woofer 102 is attached to the woofer baffle plate 15 downward. A woofer cabinet 112 is composed of the lower space of the upper casing 11 and the lower casing 12 partitioned by the woofer baffle plate 15 and the partition plate 11A.

  A bass reflex port 16 is provided on the side surface of the upper housing 11 on the woofer cabinet 112 side. A bass reflex duct 17 is connected to the bass reflex port 16 toward the inside of the woofer cabinet 112. The bass reflex duct 17 is bent downward in the woofer cabinet 112 and has a length for resonating at a low frequency.

  The upper housing 11 is covered with a cover 20 on the upper surface and side surfaces. The cover 20 is made of a thin metal plate made of punch mesh. Since it is a punch mesh, sound and light almost pass through the cover 20, but part of it is reflected and diffused inside the cover 20. The cover 20 has a side surface and an upper surface, and has a tumbled shape. The outer diameter of the cover 20 is substantially the same as that of the lower housing 12. Therefore, the speaker device 1 covered with the cover 20 has a substantially cylindrical appearance as a whole.

  A diffuser 22 is provided inside the upper surface of the cover 20. The diffuser 22 has a substantially downward cone shape, and reflects high-frequency sound emitted from the tweeter 101 in all directions. Further, the diffuser 22 is made of resin, and the surface thereof is subjected to vapor deposition plating mirror finish with a hot stamp foil. Thereby, not only sound but also light is reflected in all directions.

  The woofer baffle plate 15 has three screw holes 15A projecting downward in a pole shape having a predetermined height. A flat head screw 30 is screwed into the screw hole 15A from the back surface of the diffuser 23. Due to the height of the screw 30 and the screw hole 15 </ b> A, the diffuser 23 is provided at a predetermined distance from the woofer 102. The diffuser 23 has an upward substantially conical shape, and reflects or diffracts the mid-low sound emitted from the woofer 102 in all directions.

  As shown in FIG. 1, the speaker device 1 is installed vertically with a diffuser 23 as a base. That is, the diffuser 23 also serves as the base of the speaker device 1. For this reason, the cushion material 31 is stuck on the bottom surface in a ring shape. Accordingly, it is not necessary to separately provide legs, the structure can be simplified, and the installation area can be reduced.

  A cover 32 is provided between the outer periphery of the diffuser 23 and the outer periphery of the woofer baffle plate 15. The cover 32 is made of a punch-mesh metal thin plate and allows the sound emitted from the woofer 102 to pass through. However, when the speaker device 1 is installed on a table or the like, a user's finger or a foreign object enters. Is preventing.

  An operation panel 40 is provided on the side surface of the lower housing 12. The operation panel 40 is provided with a switch group 41 such as a power switch for turning on / off the power of the speaker device 1, a DC jack 42 for connecting an external power source, an audio jack 43 for inputting an analog audio signal, and the like. Yes.

  The operation panel 40 is made of resin, but the outer peripheral side surface of the lower housing 12 other than the operation panel 40 is covered with synthetic leather. The upper casing 11 is made of resin, and the outer peripheral side surface is mirror-finished by hot stamping foil or mirror-finished by vapor deposition plating.

  A diffusion ring 27 made of milky white resin is provided on the tweeter baffle plate 14. The diffusion ring 27 is formed in a ring shape so as to cover the tweeter baffle plate 14 so as not to cover the tweeter 101. A light guide ring 26 and a light emitting diode (hereinafter referred to as LED) 25 are provided below the diffusion ring 26 and at the peripheral edge of the tweeter baffle plate 14. The LEDs 25 are provided upward at two peripheral portions of the baffle plate 14. The light guide ring 26 is provided so as to cover the LED 25 and propagates the light of the point light emitting LED 25 to the entire circumference of the ring to obtain the effect of surface light emission. A projecting portion (not shown) for introducing the light of the LED 25 is formed at a position facing the LED 25 of the light guide ring 26. When the LED 25 is lit, light is introduced into the light guide ring 26 through the protruding portion, and the light propagates all around the light guide ring 26 and becomes brighter. This light from the light guide ring 26 also reaches the diffusion ring 27 and becomes bright as if the entire diffusion ring 27 is emitting light. In addition, since the diffuser 22 is provided on the upper surface of the cover 20, light does not escape directly and does not illuminate the ceiling.

  In addition, a waist-wrapped light guide ring 29 is provided at the lower end of the outer periphery of the upper housing 11 so as to contact the flange 11C. LEDs 28 are provided at two locations on the upper peripheral edge of the lower housing 12. A small hole is formed at a position of the flange 11 </ b> C facing the LED 28, and light of the LED 28 is introduced into the light guide ring 29. When the LED 28 is turned on, light is introduced into the light guide ring 29 through the small holes, and the entire light guide ring 29 becomes bright as if it is emitting light.

  FIG. 4 is a diagram showing the appearance of the cover 20 when the LEDs 25 and 28 are turned on. This figure shows an external appearance when the speaker device 1 is installed in a dark place and the LEDs 25 and 28 are turned on. The diffuser ring 26 and the light guide ring 29 are brightly illuminated, and the state in which the interior of the cover 20 is lightened as a whole by reflection from the back surface of the cover 20 and the side surface of the upper housing 11 can be observed through the cover 20. The tweeter diffuser 22 also reflects the light from the diffusing ring 27 all around. Thus, the speaker device 1 not only functions as a 2-way table speaker, but also functions as a table illumination and decoration.

  FIG. 5 is a block diagram of an electric circuit of the speaker device 1. The speaker device 1 includes a Bluetooth (registered trademark) communication unit 52 and an analog input unit 53 as circuits for inputting audio signals. The analog input unit 53 includes the audio jack 43 shown in FIG. The audio signal input from the Bluetooth (registered trademark) communication unit 52 or the analog input unit 53 is input to the signal processing unit 51. The signal processing unit 51 performs processing such as equalization on the input audio signal and separates the audio signal into a high-frequency component and a middle-low frequency component. The separated high-frequency component signal is input to the amplifier circuit 54. The signal of the mid-low range component is input to the amplifier circuit 55. The amplifier circuit 54 is an amplifier circuit that drives the tweeter 101, and is adjusted to be suitable for the high sound range. The amplifier circuit 55 is an amplifier circuit that drives the woofer 102, and is adjusted to be suitable for the mid-low range. The amplifier circuit 54 inputs the amplified high-frequency audio signal to the tweeter 101. The tweeter 101 emits this signal as sound. The amplifying circuit 55 inputs the amplified mid-low range audio signal to the woofer 102. The woofer 102 emits this signal as sound.

  The control unit 50 controls the pairing operation of the Bluetooth communication unit 52, the equalization operation of the signal processing unit 51, the gains of the amplifier circuits 54 and 55, and the like. The control unit 50 is composed of a microcomputer. An operation unit 56 and a lighting circuit 57 are further connected to the control unit 50. The operation unit 56 includes various switch groups 41 provided on the operation panel 40, and receives operations such as power on / off, volume adjustment, and audio input selection by the user. The lighting circuit 57 is a circuit that lights the LEDs 25 and 28. When the power is turned on, the controller 50 supplies power to the audio circuit and also supplies power to the lighting circuit 57. The lighting circuit 57 lights the LEDs 25 and 28. The speaker device 1 incorporates a battery (not shown), and operates with an external power source supplied from the battery or the DC jack 42.

  As described above, the speaker device 1 according to the present embodiment is a vertical two-way speaker, and has a light emitting unit at the top and bottom, and through the cover 20 that covers the side surface from the upper surface of the upper housing 11, sound and light are transmitted. Therefore, it is suitable as, for example, a table speaker.

  Note that the speaker device 1 is not limited to the shape described above. Modifications can be made without departing from the spirit of the present invention. For example, the cover 20 may not be cylindrical (a shape with the tumbler turned down). As long as it is composed of a member that transmits sound and light, it may be in the shape of a polygonal column such as a triangular column, a quadrangular column, or a hexagonal column including the flange 11C fitted to the lower housing 11 and the cover 20.

DESCRIPTION OF SYMBOLS 10 Case 11 Upper case 12 Lower case 20 Cover 25, 28 Light emitting diode (LED)
26, 29 Light guide ring 27 Diffusion ring 101 Tweeter 102 Woofer

Claims (6)

A housing provided with a speaker unit on the upper surface;
A cover that covers the upper part of the casing and the upper part of the side surface of the casing with a predetermined distance from the casing, and engages the casing at the lower end thereof,
A light emitting unit provided at a predetermined location in the cover;
The speaker device is formed in a net shape or a porous shape that allows sound and light to pass therethrough. The case is composed of an upper case and a lower case having different shapes,
The speaker device according to claim 1, wherein the cover covers an upper surface and a side surface of the upper housing and is engaged with the lower housing.   The upper housing is a cylindrical shape, the lower housing is a cylindrical shape having a larger diameter than the upper housing, and the cover is a cylindrical shape having substantially the same diameter as the lower housing. The speaker device described.   4. The speaker device according to claim 3, wherein the light emitting unit is provided in a ring shape around the speaker unit or in a skirting board shape that goes around the lower end of the upper housing. 5.   The speaker device according to any one of claims 1 to 4, wherein a substantially conical diffuser is provided inside the upper surface of the cover.   The speaker device according to claim 1, wherein at least a part of the side surface covered with the cover of the housing has a mirror finish.

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