Amplifier

Abstract

To provide an amplifier having traditional design.SOLUTION: An acoustic amplifier includes: an exterior portion 2 formed of lacquer ware; a door 42 installed in part of the exterior portion 2 so as to be rotatable about a predetermined axis; a display portion 52 that displays sound volume or sound pressure to be output; and an opening 420 provided in the door 42 and formed in a circular shape.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an amplifier. [Background technology]

[0002] For example, Patent Document 1 discloses an amplifier with a built-in speaker, which includes a housing, an amplifier body housed in the housing, and a speaker unit housed within the housing, with the amplifier body positioned in front of the speaker unit, a gap provided between the inner wall surface of the housing and the amplifier body, and the amplifier body is cooled by air passing through the gap due to vibrations of the speaker unit, and the gap is used as a load horn to pass sound emitted from the speaker unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-102082 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide an amplifier that is of traditional design. [Means for solving the problem]

[0005] The amplifier according to the present invention has an exterior part made of lacquerware.

[0006] Preferably, the housing further includes a door that is installed in a part of the exterior portion and is rotatable about a predetermined axis.

[0007] Preferably, the device further comprises a display unit that displays the output volume or sound pressure, and a circular opening provided in the door, the opening being located at a position corresponding to the display unit when the door is closed.

[0008] Preferably, the device further comprises a first ventilation hole provided on the bottom surface of the exterior part, and a second ventilation hole provided on the top surface or side surface of the exterior part. [Effects of the Invention]

[0009] The present invention allows for a traditional design. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view illustrating an acoustic amplifier 1 according to the present embodiment. [Figure 2] 2 is a perspective view illustrating an acoustic amplifier 1 according to the present embodiment. [Figure 3] 4 is a six-view diagram of the audio amplifier 1 with the door 42 closed. FIG. [Figure 4] 4 is a six-view diagram of the audio amplifier 1 with the door 42 open. FIG. [Figure 5] 2 is a diagram illustrating an example of a ventilation structure of the acoustic amplifier 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited to the illustrated examples. FIG. 1 is a perspective view illustrating an audio amplifier 1 according to this embodiment. FIG. 2 is a perspective view illustrating the acoustic amplifier 1 according to this embodiment. FIG. 3 is a six-view diagram of the audio amplifier 1 with the door 42 closed. FIG. 4 is a six-view diagram of the audio amplifier 1 with the door 42 open. 1 to 4, an audio amplifier 1 in this embodiment is an example of an amplifier according to the present invention, and in this example is an audio frequency preamplifier (preamplifier). The audio amplifier 1 amplifies an electrical signal input from an audio device, adjusts the sound quality, and outputs the signal to a main amplifier. The audio amplifier 1 has an amplifier main body 2 and a control device (not shown) installed inside the amplifier main body 2. The amplifier body 2 has an exterior part 4 made of lacquerware. Exterior part 4 is a housing formed by combining, for example, Wajima lacquer panels, and includes a door 42 that is installed in a part of exterior part 4 so as to be rotatable about a predetermined axis. Door 42 is provided with an opening 420 formed in a size and shape sufficient to display display part 52 (described later), and in this example, opening 420 formed in a circular shape is provided. Opening 420 is provided in a position that overlaps with display part 52 when door 42 is closed. The control device electrically amplifies the acoustic signal and includes a display unit 52 that displays the volume or sound pressure to be output. The control device is installed at a predetermined distance from the bottom surface of the exterior part 4 from the viewpoint of passive cooling. The display unit 52 is provided at a position that overlaps with the opening 420 when the door 42 is closed.

[0012] FIG. 5 is a diagram illustrating the ventilation structure of the audio amplifier 1. As shown in FIG. As illustrated in FIG. 5, the audio amplifier 1 further has a first ventilation hole 45 provided on the bottom surface of the exterior part 4 and a second ventilation hole 46 provided on the top surface or side surface of the exterior part 4. The first ventilation port 45 is an air supply ventilation port for taking in outside air into the amplifier main body 2 . The second vent 46 is an exhaust vent for discharging the air inside the amplifier main body 2 to the outside. The first ventilation opening 45 is provided at a lower position than the second ventilation opening 46. As a result, air is supplied into the inside of the amplifier main body 2 through the first ventilation opening 45 and is exhausted to the outside of the amplifier main body 2 through the second ventilation opening 46, thereby cooling the control device. [Explanation of symbols]

[0013] 1...Audio amplifier 2...Amplifier body 4...Exterior part 42...door 420...Opening 5...Control device 52...Display section 6...Frame section

Claims

1. An amplifier with an exterior made of lacquerware.

2. A door that is installed in a part of the exterior portion so as to be rotatable around a predetermined axis Further having 2. The amplifier of claim 1.

3. a display unit that displays the volume or sound pressure to be output; a circular opening provided in the door; and The opening is provided at a position corresponding to the display unit when the door is closed.

3. The amplifier of claim 2.

4. a first ventilation port provided on a bottom surface of the exterior part; a second vent provided on the top surface or side surface of the exterior part; Further having 4. The amplifier of claim 3.

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