CN210641015U

CN210641015U - Sound box

Info

Publication number: CN210641015U
Application number: CN201921560008.8U
Authority: CN
Inventors: 陈大海; 段伟迪
Original assignee: Xingluo Intelligent Technology Co Ltd
Current assignee: Xingluo Intelligent Technology Co Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-05-29
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses an audio amplifier, this audio amplifier includes the shell, rotatory lid, the conductive part, volume adjusting plate, main line board and loudspeaker, rotatory lid rotates to be connected on the shell, volume adjusting plate sets up between rotatory lid and shell, the conductive part sets up in one side of rotatory lid towards volume adjusting plate, volume adjusting plate is provided with the conductive region on one side of rotatory lid towards, the conductive region includes first conductive subregion and the conductive subregion of second, first conductive subregion and the conductive subregion of second are connected with the main line board electricity, the main line board is connected with the loudspeaker electricity, main line board and loudspeaker all set up in the shell, when rotatory lid, conductive part and first conductive subregion and/or the conductive subregion intermittent type nature contact of second. The utility model discloses technical scheme can make audio amplifier inner structure design simple, and it is little to occupy the inner space, and the audio amplifier that the volume adjustment precision is high.

Description

Sound box

Technical Field

The utility model relates to a technical field of audio amplifier, in particular to audio amplifier.

Background

The loudspeaker box is a terminal of the whole loudspeaker box system and is used for converting audio electric energy into corresponding sound energy and radiating the sound energy into space. The sound box is an extremely important component of a sound box system, and the performance of the sound box plays a key role in the sound playing quality of the sound box system.

Some small sound boxes in the existing market often adopt complex mechanical structures such as gears and the like to drive encoders to adjust and control the volume of the sound boxes. In actual use, through the volume adjustment button of anticlockwise or clockwise adjustment setting on the shell of audio amplifier, volume adjustment button rotates and drives the inside gear train that sets up the audio amplifier and rotate, and the gear train drives the pivot rotation of encoder again to carry out the regulation that increases or reduce through the encoder to the volume of audio amplifier. However, the mechanical structure is driven by a gear set, so that the internal structure of the sound box is complicated in design, the occupied internal space is large, the rotation precision is not high, and the sound volume cannot be accurately adjusted.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a sound box with a simple internal structure design, a small internal space occupation, and a high sound volume adjustment precision, in order to solve the problem of the sound volume adjustment structure of the conventional sound box.

The utility model provides a sound box, includes shell, rotatory lid, conductive part, volume control board, main line board and loudspeaker, rotatory lid rotate connect in on the shell, volume control board set up in rotatory lid with between the shell, the conductive part set up in rotatory lid orientation one side of volume control board, the volume control board orientation be provided with the conductive region on one side of rotatory lid, the conductive region includes first conductive subregion and second conductive subregion, first conductive subregion and second conductive subregion with the main line board electricity is connected, the main line board with the loudspeaker electricity is connected, the main line board reaches loudspeaker all set up in the shell, work as when rotatory lid is rotatory, metal shrapnel with first conductive subregion and/or the contact of second conductive subregion intermittent type nature.

In one embodiment, the first conductive sub-region is provided with a plurality of groups of first contacts and second contacts arranged at intervals along an edge of the volume adjustment plate, the conductive part includes a first conductive sheet, and when the rotary cover rotates, the first conductive sheet contacts with one of the groups of the first contacts and the second contacts or is in a suspended state.

In one embodiment, the second conductive sub-region is provided with a plurality of sets of third contacts and fourth contacts arranged at intervals along the edge of the volume adjustment plate, and the conductive portion further includes a second conductive plate, and when the rotary cover rotates, the second conductive plate is in contact with one set of the third contacts and the fourth contacts or is in a suspended state.

In one embodiment, the rotating cover includes a rotating ring and a cover plate disposed on the rotating ring, the sound box further includes a fixing seat for mounting a volume adjustment plate, the fixing seat is fixedly mounted on the housing, and the rotating ring is sleeved between the fixing seat and the housing.

In one embodiment, the housing includes a cover and a housing, the cover and the housing are connected by a snap, the cover is recessed from an edge toward a center, a support pillar is disposed on a surface of the cover facing the recess, the fixing base is fixedly connected to the support pillar, and the rotating ring is sleeved between the fixing base and the cover.

In one embodiment, the rotating ring includes a body, a first protrusion and a second protrusion, the cover is fixedly disposed at one end of the body, the first protrusion extends from the body toward a side away from the cover, the second protrusion extends from an inner side of the body toward a central axis of the body, a first guide groove is formed on a side of the cover facing the fixing seat, the first protrusion is fittingly installed in the first guide groove, a second guide groove is formed on a side of the fixing seat facing the cover, and the second protrusion is fittingly installed in the second guide groove.

In one embodiment, the body is flared towards one surface of the cover plate, and the radius of the body towards one surface of the cover plate is gradually increased along the axis towards the direction far away from the first bulge.

In one embodiment, the rotating ring further includes a third protrusion, the third protrusion extends from the body toward a side close to the cover plate, a third guide groove is opened on a side of the cover plate toward the rotating ring, and the third protrusion is fittingly installed in the third guide groove.

In one embodiment, the third protruding portion is fixedly connected with the inside of the third guide groove through glue.

In one embodiment, the cover plate is fixedly connected with the first conducting plate and the second conducting plate.

The technical scheme of the utility model, be provided with volume adjustment plate in the shell of audio amplifier, the last first conduction region and the second conduction region of being connected with the main line board electricity that are provided with of volume adjustment plate, the main line board is connected with the horn electricity, set up the conductive part on one side of rotatory lid towards volume adjustment plate again, the rotation through rotatory lid drives the input of different signals of telecommunication on volume adjustment plate is realized with first conduction region and/or the contact of second conduction region intermittent type nature, thereby to the accurate regulation of audio amplifier volume size. Therefore, the internal structure of the sound box is simpler than the original structure, the occupied space is small, the compactness of the whole structure of the sound box is effectively enhanced, and the sound volume adjustment precision is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, drawings of other embodiments can be obtained according to the drawings without creative efforts.

Fig. 1 is a sectional view of an embodiment of the sound box of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an exploded view of the enclosure of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is a schematic structural view of the volume adjustment plate of FIG. 1;

fig. 6 is a schematic structural diagram of the cover plate and the conductive part in fig. 1.

The reference numbers illustrate:

10. a sound box; 100. a housing; 110. a cover body; 111. a support pillar; 112. a first guide groove; 120. a housing; 200. a rotating cover; 210. a rotating ring; 211. a body; 212. a first boss portion; 213. a second boss portion; 214. a third boss portion; 220. a cover plate; 221. a third guide groove; 300. a conductive portion; 310. a first conductive sheet; 320. a second conductive sheet; 400. a volume adjusting plate; 410. a conductive region; 411. a first conductive sub-region; 401. a first contact; 402. a second contact; 412. a second conductive sub-region; 403. a third contact; 404. a fourth contact; 500. a main circuit board; 600. a horn; 700. a fixed seat; 710. a second guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as according to the upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (according to the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 and 2, in one embodiment, an acoustic enclosure 10 includes a housing 100, a rotary cover 200, a conductive portion 300, a volume adjustment plate 400, a main circuit board 500, and a speaker 600. The rotary cover 200 is rotatably coupled to the housing 100. The volume adjustment plate 400 is disposed between the rotary cover 200 and the housing 100, the conductive part 300 is disposed on a side of the rotary cover 200 facing the volume adjustment plate 400, and the volume adjustment plate 400 is provided with a conductive area 410 on a side facing the rotary cover 200. The conductive area 410 comprises a first conductive sub-area 411 and a second conductive sub-area 412, the first conductive sub-area 411 and the second conductive sub-area 412 being electrically connected to the main circuit board 500, the main circuit board 500 being electrically connected to the loudspeaker 600. The main circuit board 500 and the speaker 600 are disposed in the housing 100. As the rotary cap 200 rotates, the conductive portion 300 is in intermittent contact with the first conductive sub-region 411 and/or the second conductive sub-region 412. Specifically, the volume adjustment plate 400 is a PCBA plate mainly used for controlling the volume of the sound box 10, the first conductive area 411 and the second conductive area 412 are different potentiometers disposed on the volume adjustment plate 400, and the conductive area 410 of the volume adjustment plate 400 is connected to the main circuit board 500 by a flat cable. When the conductive part 300 rotates on the volume adjustment plate 400, the conductive part intermittently contacts the first conductive area 411 and the second conductive area 412, so that the volume adjustment plate 400 can receive a plurality of groups of different 0 or 1 electric signal combinations, different electric signals can be intermittently given to the main circuit board 500, and the volume of the loudspeaker 600 can be controlled by the main circuit board 500 according to the received electric signal combinations, for example, when the conductive part 300 rotates for N positions, the volume adjustment plate 400 can change the volume of the loudspeaker 600 according to the change of N groups of electric signals received by the volume adjustment plate 400. For example, in the present embodiment, when the first conductive plate 310 and the second conductive plate 320 rotate clockwise simultaneously, 10% of the sound volume of the sound box 10 can be increased each time the volume adjusting plate 400 receives three sets of electric signals (1, 1), (1, 0), (0, 1); when the first conductive plate 310 and the second conductive plate 320 rotate counterclockwise at the same time, each time the volume adjustment plate 400 receives three sets of electric signals (0, 1), (1, 0), (1, 1), a 10% volume reduction can be performed on the sound box 10. The different settings of the multiple groups of electric signals improve the accurate control of the volume of the sound box 10.

The technical scheme of the utility model, be provided with volume adjustment board 400 in audio amplifier 10's shell 100, be provided with first conductive area 411 and the second conductive area 412 of being connected with main line board 500 electricity on the volume adjustment board 400, main line board 500 is connected with loudspeaker 600 electricity, set up conductive part 300 on one side of swivel cap 200 towards volume adjustment board 400 again, the rotatory conductive part 300 that drives through swivel cap 200 realizes the input of the different signals of telecommunication on volume adjustment board 400 with first conductive area 411 and/or the contact of second conductive area 412 intermittent type nature, thereby to the accurate regulation of audio amplifier 10 volume size. Therefore, the internal structure of the sound box 10 is simpler than the original structure, the occupied space is small, the compactness of the whole structure of the sound box is effectively enhanced, and the sound volume adjustment precision is high.

As shown in fig. 3 to 5, in an embodiment, the first conductive sub-area 411 is provided with a plurality of sets of first contacts 401 and second contacts 402 arranged at intervals along the edge of the volume adjustment plate 400. The conductive portion 300 includes a first conductive sheet 310. When the rotary cover 200 rotates, the first conductive sheet 310 is in contact with one set of the first contact 401 and the second contact 402, or in a floating state. Further, the second conductive sub-area 412 is provided with a plurality of sets of third contacts 403 and fourth contacts 404 arranged at intervals along the edge of the volume adjustment plate 400. The conductive portion 300 further includes a second conductive sheet 320. When the rotary cover 200 rotates, the second conductive plate 320 is in contact with one set of the third contacts 403 and the fourth contacts 404, or in a floating state. Specifically, by arranging the first contact 401 and the second contact 402 at intervals, when the first conductive sheet 310 rotates and contacts the first contact 401 and the second contact 402, the volume adjustment plate 400 receives an electrical signal of 1, and when the first conductive sheet is in a suspended state, the volume adjustment plate 400 receives an electrical signal of 0. Similarly, by arranging the third contact 403 and the fourth contact 404 at intervals, when the second conductive sheet 320 rotates, the volume adjustment plate 400 receives an electrical signal of 1 when contacting the third contact 403 and the fourth contact 404, and when in a suspended state, the volume adjustment plate 400 receives an electrical signal of 0. Thus, the volume adjusting plate 400 can output four groups of electrical signals 500 (0, 0), (0, 1), (1, 0) and (1, 1) in different arrangement and combination modes on the main circuit board, so that the volume of the sound box 10 can be controlled more accurately and stably.

As shown in fig. 3, in one embodiment, the spin cover 200 includes a spin ring 210 and a cover plate 220 disposed on the spin ring 210. The sound box 10 further includes a fixing base 700 for mounting the volume adjustment plate 400, the fixing base 700 is fixedly mounted on the housing 100, and the rotating ring 210 is sleeved between the fixing base 700 and the housing 100. So set up, fixing base 700 not only is convenient for the fixed of volume-adjusting plate 400 and the installation, still is convenient for rotatory lid 200 to install and realizes rotating on volume-adjusting plate 400 on shell 100, makes audio amplifier 10 inner space simple structure, compactness, reasonable.

As shown in fig. 3, in an embodiment, the housing 100 includes a cover 110 and a housing 120, and the cover 110 and the housing 120 are snap-fit connected. The cover 110 is recessed from the edge toward the center, the support post 111 is disposed on the recessed surface of the cover 110, the fixing base 700 is fixedly connected to the support post 111, and the rotating ring 210 is sleeved between the fixing base 700 and the cover 110. By arranging the cover 110 and the housing 120, the electronic components can be conveniently installed into the sound box 10. The cover 110 is recessed from the edge toward the center, so that the space inside the casing 120 is utilized reasonably, the assembly is more compact, and the overall appearance of the sound box 10 is more attractive.

As shown in fig. 2 and 3, in an embodiment, the rotating ring 210 includes a body 211, a first protrusion 212 and a second protrusion 213, the cover plate 220 is fixedly disposed at one end of the body 211, the first protrusion 212 extends from the body 211 toward a side away from the cover plate 220, the second protrusion 213 extends from an inner side of the body 211 toward a central axis of the body 211, a first guide groove 112 is formed on a side of the cover 110 facing the fixing seat 700, the first protrusion 212 is fittingly installed in the first guide groove 112, a second guide groove 710 is formed on a side of the fixing seat 700 facing the cover 110, and the second protrusion 213 is fittingly installed in the second guide groove 710. So set up, through the cooperation of first bellying 212 with first guide slot 112, the cooperation of second bellying 213 and second guide slot 710 not only realizes the needs of rotatory ring 210 self, still restricts the displacement of rotatory ring 210 along vertical direction and horizontal direction, plays spacing effect, simple structure, design benefit.

As shown in fig. 1 and 2, in an embodiment, one side of the body 211 facing the cover plate 220 is in a horn shape, and the radius of the body 211 facing the cover plate 220 is gradually increased along the axis toward the direction away from the first protruding portion 212, so that the side of the body 211 is in a curved surface configuration, which not only facilitates the rotating operation of the rotating ring 210 by a user, but also facilitates the light of the decorative lamp installed in the casing 120 to be projected to the side of the body 211 for reflection, so that the sound box can present a ten-color gorgeous color in the using process, thereby increasing the ornamental value of the sound box.

As shown in fig. 2, in an embodiment, the rotating ring 210 further includes a third protrusion 214, the third protrusion 214 extends from the body 211 toward a side close to the cover plate 220, a third guide groove 221 is formed on a side of the cover plate 220 toward the rotating ring 210, and the third protrusion 214 is fittingly installed in the third guide groove 221. This facilitates the installation of the cover plate 220 and the rotating ring 210, improving the efficiency of assembly.

As shown in fig. 2, in an embodiment, the third protrusion 214 is fixedly connected to the third groove 221 by glue, so that the cover plate 220 can be firmly assembled with the rotating ring 210, and the reliability of use can be ensured. Of course, different assembling manners may be adopted according to actual situations, for example, the cover plate 220 is snap-connected to the rotating ring 210, the connection manner is easy to detach, and if the volume adjusting plate 400 is damaged, the replacement is convenient, and is not limited specifically herein.

As shown in fig. 6, in an embodiment, the cover plate 220 is fixedly connected to the first conductive plate 310 and the second conductive plate 320. If the cover plate 220 is made of plastic, it can be integrally formed with the first conductive plate 310 and the second conductive plate 320 by in-mold injection molding. If the cover plate 220 is made of a metal material, it may be welded and fixed to the first conductive plate 310 and the second conductive plate 320 by electric welding. Thus, the first conductive sheet 310 and the second conductive sheet 320 cannot fall off in the using process, and the using reliability is ensured.

The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a sound box, its characterized in that, includes shell, rotatory lid, conductive part, volume control board, main line board and loudspeaker, rotatory lid rotate connect in on the shell, volume control board set up in rotatory lid with between the shell, the conductive part set up in rotatory lid orientation one side of volume control board, the volume control board orientation be provided with the conductive region on one side of rotatory lid, the conductive region includes first conductive subregion and second conductive subregion, first conductive subregion and second conductive subregion with the main line board electricity is connected, the main line board with the loudspeaker electricity is connected, the main line board reaches loudspeaker all set up in the shell, work as when rotatory lid is rotatory, the conductive part with first conductive subregion and/or the contact of second conductive subregion intermittent type nature.

2. The sound box according to claim 1, wherein the first conductive sub-area is provided with a plurality of sets of first contacts and second contacts arranged at intervals along an edge of the volume adjustment plate, and the conductive portion includes a first conductive plate, and when the rotary cover rotates, the first conductive plate is in contact with one of the sets of the first contacts and the second contacts or is in a suspended state.

3. The sound box according to claim 2, wherein the second conductive sub-area is provided with a plurality of sets of third and fourth contacts arranged at intervals along an edge of the volume adjustment plate, and the conductive portion further comprises a second conductive plate, and when the rotary cover rotates, the second conductive plate is in contact with one set of the third and fourth contacts or is in a suspended state.

4. The sound box according to claim 3, wherein the rotary cover comprises a rotary ring and a cover plate disposed on the rotary ring, the sound box further comprises a fixing seat for mounting a volume adjustment plate, the fixing seat is fixedly mounted on the housing, and the rotary ring is sleeved between the fixing seat and the housing.

5. The sound box according to claim 4, wherein the housing comprises a cover and a housing, the cover and the housing are connected by a snap fit, the cover is recessed from an edge toward a center, a support post is disposed on a surface of the cover facing the recess, the fixing base is fixedly connected to the support post, and the rotating ring is sleeved between the fixing base and the cover.

6. The sound box according to claim 5, wherein the rotating ring comprises a body, a first protrusion and a second protrusion, the cover is fixedly disposed at one end of the body, the first protrusion extends from the body toward a side away from the cover, the second protrusion extends from an inner side of the body toward a central axis of the body, a first guide groove is formed on a side of the cover facing the fixing seat, the first protrusion is fittingly mounted in the first guide groove, a second guide groove is formed on a side of the fixing seat facing the cover, and the second protrusion is fittingly mounted in the second guide groove.

7. The loudspeaker of claim 6, wherein a face of the body facing the cover plate is flared, and a radius of the body facing the cover plate gradually increases along an axis in a direction away from the first protrusion.

8. The sound box of claim 6, wherein the rotating ring further comprises a third protrusion, the third protrusion extends from the body toward a side near the cover, a third groove is formed on a side of the cover toward the rotating ring, and the third protrusion is fittingly installed in the third groove.

9. The sound box of claim 8, wherein the third protrusion is fixedly connected with the inside of the third guide groove through glue.

10. The acoustic enclosure of claim 4, wherein the cover plate is fixedly connected to the first conductive plate and the second conductive plate.