Acoustic device

Abstract

This acoustic device comprises: a substrate (3) that has a mounting surface (3a); a light-emitting element (4) that is provided on the mounting surface (3a) of the substrate (3); a tact switch (5) that is provided on the mounting surface (3a) of the substrate (3); an operator (6) that has an extension portion (62) formed so as to extend facing the tact switch (5); and a cap member (8) that is disposed between the operator (6) and the substrate (3) and has a body portion covering the tact switch (5) and the light-emitting element (4). The body portion of the cap member (8) has an end surface in contact with the mounting surface (3a) of the substrate (3), has an opening (82a) through which the extension portion (62) penetrates, and is made of a light-diffusing material having light transmissivity.

Description

Audio device

[0001] The present disclosure relates to an audio device.

[0002] Devices provided with an operation unit operated by an operator are known (see, for example, Patent Document 1). The device disclosed in Patent Document 1 detects that a push button, which is an operation unit, has been operated by a tact switch. Such an operation unit is also applied to audio devices exemplified by a DJ player. In audio equipment, in order to improve the design property, a light-emitting element may be provided inside an operation unit having a light-transmitting portion. By the light emitted by the light-emitting element passing through the light-transmitting portion of the operation unit, the operation unit can be made to appear to be emitting light.

[0003] Japanese Unexamined Patent Application Publication No. 2009-054430

[0004] Here, when liquid such as water or a beverage enters the tact switch, there is a possibility that the operation of the operation unit cannot be correctly detected. However, sufficient measures against the liquid reaching the tact switch have not been taken.

[0005] An object of the present disclosure is to obtain an audio device provided with an operation unit having water resistance while maintaining the design property.

[0006] The audio device according to the present disclosure includes a substrate having a mounting surface, a light-emitting element provided on the mounting surface of the substrate, a tact switch provided on the mounting surface of the substrate, an operating element having an extending portion formed to extend facing the tact switch, and a cap member disposed between the operating element and the substrate and having a main body portion that covers the tact switch and the light-emitting element. The main body portion of the cap member has an end face in contact with the mounting surface of the substrate, and an opening is formed that penetrates the extending portion, and is made of a light-diffusing material having light-transmittance.

[0007] According to the present disclosure, there is an effect that an audio device provided with an operation unit having water resistance while maintaining the design property can be obtained.

[0008] Figure 1 is a plan view of the sound device according to Embodiment 1. Figure 2 is a partially enlarged perspective view of portion A shown in Figure 1. Figure 3 is a perspective view showing a cross-section of the sound device cut along the line III-III shown in Figure 1. Figure 4 is a schematic diagram showing a cross-section of the sound device cut along the line III-III shown in Figure 1. Figure 5 is a plan view of a substrate on which a light-emitting element and a tact switch are mounted, viewed from the mounting surface side. Figure 6 is a plan view of a substrate on which a cap member is fixed to the mounting surface, viewed from the mounting surface side. Figure 7 is a perspective view of the cap member from above. Figure 8 is a perspective view of the cap member from below. Figure 9 is a side view of the cap member. Figure 10 is a bottom view of the cap member from below. Figure 11 is a cross-sectional view taken along the line XI-XI shown in Figure 4. Figure 12 is a partially enlarged cross-sectional view showing the tip portion of the beam. Figure 13 is a cross-sectional view taken along the line XIII-XIII shown in Figure 11.

[0009] An acoustic device according to one embodiment of this disclosure will be described in detail below with reference to the drawings. However, this disclosure is not limited to the embodiments described below.

[0010] [Embodiment 1] Figure 1 is a plan view of the sound device according to Embodiment 1. Figure 2 is a partially enlarged perspective view of portion A shown in Figure 1. Figure 3 is a perspective view showing a cross-section of the sound device cut along the line III-III shown in Figure 1. In Figure 3, the cover is omitted.

[0011] The sound device 1 is a device used for playing music, and is, for example, a DJ player, a turntable, a DJ controller, or an integrated DJ device that combines a DJ player and a DJ mixer. The sound device 1 comprises a cover 2, a jog dial 11, a display unit 12, a circuit board 3, a light-emitting element 4, a tact switch 5, an operator 6, a light-transmitting part 7, and a cap member 8.

[0012] Cover 2 constitutes the housing of the sound device 1. The jog dial 11 is located on the top surface of cover 2. In the sound device 1, in response to the operator's operation of the jog dial 11, the control unit outputs an operation signal or an audio signal of a song whose playback state has been adjusted. The output destination of the operation signal and audio signal is, for example, a music playback device (not shown) connected to the sound device 1. The music playback device plays the song based on the input operation signal or audio signal. The display unit 12 is located on the top surface of cover 2. The display unit 12 displays information about the song being played, etc.

[0013] The circuit board 3 is located inside the cover 2. The circuit board 3 has a mounting surface 3a on which electronic components and the like are mounted, and a back surface 3b which is the back side of the mounting surface 3a.

[0014] Figure 4 is a schematic diagram showing a cross-section of the acoustic device cut along the line III-III shown in Figure 1. Cover 2 is omitted in Figure 4.

[0015] The light-emitting element 4 is mounted on the mounting surface 3a of the substrate 3. The light-emitting element 4 is located below the operator 6. The light-emitting element 4 is, for example, a multi-color LED capable of switching between multiple colors to emit light. Note that the light-emitting element 4 is not limited to a multi-color LED, but may also be an LED capable of emitting light in a single color.

[0016] The tact switch 5 is mounted on the mounting surface 3a of the circuit board 3. The tact switch 5 is located below the operator 6. The tact switch 5 is located next to the light-emitting element 4. The tact switch 5 has a movable part 51. The movable part 51 is provided to be movable up and down. The movable part 51 is biased to move upward. The tact switch 5 emits a signal when it detects that the movable part 51 has been pushed downward.

[0017] The operator 6 has an opposing portion 61, an extension portion 62, and an operation button 63. The opposing portion 61 is positioned between the operation unit 71 and the circuit board 3 so as to face the tact switch 5. The opposing portion 61 is movable in the direction toward the mounting surface 3a of the circuit board 3. In the following description, the direction toward the mounting surface 3a of the opposing portion 61 is considered downward, and the opposite direction is considered upward.

[0018] The extension portion 62 is formed to extend from the opposing portion 61 toward the movable portion 51 of the tact switch 5.

[0019] The operation button 63 is attached to the opposing part 61. As shown in Figure 1, the operation button 63 is exposed on the top surface of the cover 2. The operation button 63 is an operating part that the operator touches and operates directly. When the operator presses the operation button 63, the opposing part 61 and the extension part 62 move downward together with the operation button 63. As the extension part 62 moves downward, the movable part 51 of the tact switch 5 is pushed downward by the extension part 62. In this way, the sound device 1 can detect when the operator has pressed the operation button 63 using the tact switch 5. When the operator releases their hand from the pressed position of the operation button 63, the operation button 63 returns to its position before being pressed. By pressing the operation button 63, for example, music can be played or stopped.

[0020] The light-transmitting section 7 is provided on the top surface of the cover 2 so as to surround the operation button 63. The light-transmitting section 7 is made of a light-transmitting material.

[0021] Figure 5 is a plan view of a substrate on which a light-emitting element and a tact switch are mounted, as seen from the mounting side. Two first through-holes 31 are formed in the substrate 3 so as to sandwich the light-emitting element 4. A second through-hole 32 is also formed in the substrate 3 at a position adjacent to the tact switch 5. The first through-holes 31 and the second through-holes 32 are used to fix the cap member 8, which will be described later, to the substrate 3.

[0022] As shown in Figure 4, the cap member 8 is positioned between the opposing portion 61 and the substrate 3. The cap member 8 is fixed to the mounting surface 3a of the substrate 3. Figure 6 is a plan view of the substrate with the cap member fixed to the mounting surface, as seen from the mounting surface side. The cap member 8 covers the light-emitting element 4 and the tact switch 5.

[0023] Figure 7 is a perspective view of the cap member from above. Figure 8 is a perspective view of the cap member from below. Figure 9 is a side view of the cap member. Figure 10 is a bottom view of the cap member from below. The cap member 8 has a top surface portion 82 and a wall surface portion 81. The main body of the cap member 8 is formed by having the top surface portion 82 and the wall surface portion 81. However, the main body of the cap member 8 is not limited to having a top surface portion 82 and a wall surface portion 81. For example, the top surface portion 82 and the wall surface portion 81 may be in a configuration in which the cross-sectional shape is an arc shape and the top surface portion 82 and the wall surface portion 81 are not clearly separated.

[0024] As shown in Figure 4, the top surface 82 faces the mounting surface 3a of the substrate 3. As shown in Figures 4 and 6, an opening 82a is formed in the portion of the top surface 82 that faces the tact switch 5. The extension 62 of the operator 6 passes through the opening 82a. As a result, when the operation button 63 is pressed, the extension 62 directly contacts the movable part 51 of the tact switch 5. That is, although the tact switch 5 is covered by the cap member 8, no other member is interposed between the movable part 51 of the tact switch 5 and the extension 62. Therefore, the feel (operational sensation) when operating the operation button 63 is the feeling obtained from the direct contact between the extension 62 and the movable part 51 of the tact switch 5. Thus, the operational sensation when operating the operation button 63 can be made the same as when the cap member 8 is not provided.

[0025] As shown in Figure 4, the wall portion 81 extends from the top portion 82 toward the mounting surface 3a of the substrate 3. The end face of the wall portion 81 abuts against the mounting surface 3a. Figure 11 is a cross-sectional view taken along the line XI-XI shown in Figure 4. As shown in Figure 11, the wall portion 81 is provided so as to surround the light-emitting element 4 and the tact switch 5 in a plan view. Because the end face of the wall portion 81 abuts against the mounting surface 3a, it is difficult for liquid to enter the area where the light-emitting element 4 and the tact switch 5 are mounted from the outside of the wall portion 81. In addition, since the top portion 82 is also provided above the light-emitting element 4 and the tact switch 5, it is even more difficult for liquid to enter. This makes it possible to improve the water resistance of the sound device 1.

[0026] As shown in Figures 8 to 10, a recess 81b is formed in the contact surface 81a of the wall portion 81 that abuts against the mounting surface 3a of the substrate 3, and is recessed upward. The recess 81b is the part that is pressed by the ejection pin when the cap member 8, which is molded using a mold, is pushed out of the mold.

[0027] A gap is formed between the recess 81b and the mounting surface 3a of the substrate 3 in the area where the recess 81b is formed. In other words, the recess 81b does not come into contact with the mounting surface 3a of the substrate 3. The recess 81b is formed at a position away from the inner edge of the wall portion 81. In other words, the recess 81b is not continuous with the inner surface of the wall portion 81. As a result, the gap formed between the wall portion 81 and the mounting surface 3a by the recess 81b does not reach the inside of the wall portion 81. Therefore, it is prevented that liquid will enter the inside of the wall portion 81 from the area where the recess 81b is formed. As shown in Figure 10, the wall portion 81 in which the recess 81b is formed may be made thicker so that the recess 81b is formed away from the inner edge of the end face of the wall portion 81.

[0028] The cap member 8 has ribs 85 formed on it. The ribs 85 are provided to separate the light-emitting element 4 and the tact switch 5 in the space covered by the wall portion 81 and the top portion 82. The end faces of the ribs 85 may or may not come into contact with the mounting surface 3a when the cap member 8 is installed.

[0029] The wall portion 81, the top portion 82, and the ribs 85 are formed of a light-transmitting light-diffusing material. The light-transmitting light-diffusing material is, for example, a milky white translucent resin. The light emitted by the light-emitting element 4 passes through the light-diffusing material and is emitted to the outside of the cap member 8. By being diffused as it passes through the light-diffusing material, the light emitted by the light-emitting element 4 is emitted as light with reduced brightness and color unevenness. The light emitted to the outside of the cap member 8 is then emitted to the outside of the cover 2 through the light-transmitting portion 7 surrounding the operation button 63. To the operator and other viewers of the sound device 1, the area around the operation button 63 appears to be emitting light with reduced brightness and color unevenness, thus improving the aesthetic appearance of the sound device 1. Furthermore, the formation of the ribs 85 prevents the light emitted by the light-emitting element 4 from being emitted from the opening 82a without passing through the cap member 8, further suppressing the occurrence of brightness and color unevenness.

[0030] The cap member 8 has multiple locking parts. For example, the cap member 8 has two first locking parts 83 and a second locking part 84. The first locking part 83 is inserted into a first through hole 31 formed in the substrate 3. The second locking part 84 is inserted into a second through hole 32 formed in the substrate 3. The cap member 8 is fixed to the mounting surface 3a by inserting the first locking part 83 and the second locking part 84 into the first through hole 31 and the second through hole 32.

[0031] The first locking portion 83 is a snap-fit. More specifically, the first locking portion 83 has a beam portion 83a that protrudes away from the wall portion 81 in the upper portion of the wall portion 81, which is the part away from the mounting surface 3a, and then extends downward. A protrusion 83b that protrudes laterally is formed at the tip of the beam portion 83a.

[0032] Figure 12 is a magnified cross-sectional view of the tip of the beam portion. As shown in Figure 12, the tip of the beam portion 83a is inserted into the first through hole 31, and the protrusion 83b catches on the back surface 3b of the substrate, preventing the first locking portion 83 from coming out of the first through hole 31.

[0033] At the connection point between the beam portion 83a and the protrusion portion 83b, an inclined surface 83c is formed that abuts against the opening edge on the back surface 3b side of the first through hole 31 at an angle inclined with respect to the back surface 3b of the substrate 3. When the inclined surface 83c is pressed against the opening edge on the back surface 3b side of the first through hole 31 by the elastic force of the beam portion 83a, a force is generated that pushes the first locking portion 83 downward. This force pushes the first locking portion 83 downward, which in turn presses the cap member 8 against the mounting surface 3a, thereby more firmly fixing the cap member 8 to the mounting surface 3a. This reduces the vibration noise generated when the operation button 63 is operated. In addition, the contact surface 81a of the wall portion 81 of the cap member 8 is also pressed firmly against the mounting surface 3a, more reliably preventing liquid from entering the inside of the wall portion 81.

[0034] Figure 13 is a cross-sectional view taken along the line XIII-XIII shown in Figure 11. The second locking portion 84 is formed on the outer surface of the wall portion 81. The second locking portion 84 is formed to protrude from the lower portion of the wall portion 81, which is the end portion on the mounting surface 3a side. The cross-sectional shape of the second locking portion 84 is crank-shaped. The second locking portion 84 extends from the outer surface of the wall portion 81 along the mounting surface 3a of the substrate 3, passes through the second through hole 32, and further extends along the back surface 3b of the substrate 3. The tip of the second locking portion 84 inserted into the second through hole 32 abuts against the back surface 3b of the substrate 3. By the tip abutting against the back surface 3b of the substrate 3, the second locking portion 84 is prevented from coming out of the second through hole 32. In addition, vibration noise generated when the operation button 63 is operated can be reduced.

[0035] When attaching the cap member 8 to the substrate 3, the second locking portion 84 is first inserted into the second through hole 32, and then the first locking portion 83 is inserted. By hooking the first locking portion 83 and the second locking portion 84 onto the substrate 3, the cap member 8 is fixed to the mounting surface 3a.

[0036] Furthermore, the first locking portion 83, which is a snap-fit, needs to be elastically deformable when attaching and detaching the cap member 8, so the beam portion 83a needs to be of a certain length. For this reason, the beam portion 83a is formed to protrude from the upper part of the wall portion 81 and extends downward with a gap between it and the wall portion 81. In this way, since the beam portion 83a is provided on the outside of the wall portion 81, the width of the cap member 8 becomes wider at the location where the first locking portion 83 is provided.

[0037] On the other hand, the second locking portion 84 does not need to undergo elastic deformation like the beam portion 83a of the first locking portion 83, and is therefore formed to protrude from the lower part of the wall portion 81. As a result, in the area where the second locking portion 84 is provided, the width of the cap member 8 on the mounting surface 3a side is suppressed compared to the area where the first locking portion 83 is provided. Therefore, the cap member 8 can be made smaller compared to the case where both the first locking portion 83 and the second locking portion 84 are snap-fit. By making the cap member 8 smaller, it becomes possible to secure a larger mounting space for electronic components, etc. on the mounting surface 3a. This improves the design freedom for the arrangement of electronic components, wiring routes, etc.

[0038] Furthermore, the cap member 8 according to this disclosure does not necessarily have to have two types of locking parts: a first snap-fit ​​locking part 83 and a second crank-shaped locking part 84. For example, all the locking parts of the cap member 8 may be snap-fit.

[0039] In the example cap member, the cap member 8, including the first locking portion 83 and the second locking portion 84, is formed as a single unit. Therefore, the first locking portion 83 and the second locking portion 84 are also made of a light-transmitting light-diffusing material.

[0040] Furthermore, in this embodiment, an example is shown in which the operation button 63, which is exposed to the outside of the cover 2 and operated by the operator, and the opposing part 61, which has an extension 62 that contacts the tact switch 5, are formed separately, but the embodiment is not limited to this. The operation button 63 is not necessarily required, and for example, the opposing part 61 may be exposed to the outside of the cover 2 and configured to function as an operation unit that is operated by the operator.

[0041] Furthermore, the water resistance of the sound device 1 may be further improved by inserting rubber between the mounting surface 3a of the substrate 3 and the cap member 8, or by applying a water-repellent agent or the like to the mounting surface 3a.

[0042] 1. Sound device, 11. Jog dial, 12. Display unit, 2. Cover, 3. Circuit board, 3a. Mounting surface, 3b. Back surface, 31. First through hole, 32. Second through hole, 4. Light-emitting element, 5. Tact switch, 51. Movable part, 6. Operator, 61. Opposing part, 62. Extension part, 63. Operation button, 7. Light-transmitting part, 8. Cap member, 81. Wall surface, 81a. Contact surface, 81b. Recess, 82. Top surface, 82a. Opening, 83. First locking part, 83a. Beam part, 83b. Protrusion, 83c. Inclined surface, 84. Second locking part, 85. Rib

Claims

1. An acoustic device comprising: a substrate having a mounting surface; a light-emitting element provided on the mounting surface of the substrate; a tact switch provided on the mounting surface of the substrate; an operator having an extension formed to extend toward the tact switch; and a cap member disposed between the operator and the substrate and having a main body that covers the tact switch and the light-emitting element, wherein the main body of the cap member has an end face in contact with the mounting surface of the substrate, has an opening formed to allow the extension to pass through, and is made of a light-transmitting light-diffusing material.

2. The sound device according to claim 1, wherein the light-emitting element is a multi-color LED.

3. The main body portion of the cap member has a rib formed thereon that separates the tact switch from the light-emitting element, and the rib is made of a light-transmitting light-diffusing material, as described in claim 1.

4. The sound device according to claim 3, wherein the substrate has a plurality of through holes, and the cap member has a plurality of locking parts that engage with the through holes.

5. The acoustic device according to claim 4, wherein at least one locking portion is a snap-fit ​​having a beam portion extending from the main body portion and passing through the through hole, and a protrusion formed on the beam portion that hooks onto the back surface which is the back side of the mounting surface.

6. The acoustic device according to claim 5, wherein the protrusion has an inclined surface that abuts against the opening edge of the through hole.

7. The sound device according to claim 4, wherein one of the locking portions extends from the outer surface of the main body portion along the surface of the substrate, from the mounting surface side to the back side, and is inserted into the through hole.

8. The sound device according to claim 1, wherein a recess is formed on the end face of the main body that is not continuous with the inner surface of the main body and does not come into contact with the mounting surface of the substrate.

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