CN214707948U

CN214707948U - Audio player

Info

Publication number: CN214707948U
Application number: CN202120678520.3U
Authority: CN
Inventors: 曾德钧
Original assignee: Shenzhen Airsmart Technology Co Ltd
Current assignee: Shenzhen Airsmart Technology Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-12
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to the technical field of players, in particular to an audio player which is easy to operate and has lower cost, comprising a shell with an opening on the main surface, a loudspeaker, a LED lamp plate arranged on the outer edge of the opening, a light guide cover covering the LED lamp plate and a speaker mesh embedded in the light guide cover; a main control circuit comprising an MCU processor, a power amplifier circuit, a light-operated switch circuit, a lamp group driving circuit, a volume control circuit and a power supply management circuit for supplying power to the player are arranged in the shell; the top surface of the shell is provided with a selector switch sleeved with a knob control, and the MCU processor controls the volume output by the loudspeaker when the knob control is driven by external torque force to contact the selector switch with different contacts in the volume control circuit; when the knob control piece is pressed by the outside and drives the selector switch to contact with different contacts in the light-operated switch circuit, the MCU processor adjusts the work of the lamp group driving circuit to control the LED lamp panel to enter different light-emitting modes.

Description

Audio player

Technical Field

The utility model relates to a player technical field especially relates to an audio player with LED flash of light device.

Background

The player is an electronic device which is provided with an audio plug-in and can send out specified audio content, and the player can work independently under the condition that audio information is stored, and can also be matched with an external audio device to be used as an execution unit of the external audio device to play music.

The traditional player has a simple structure and a single function, and is only used for playing audio or further updating data through an external signal transmitting terminal. Most people are listening to the audio program, especially when listening to the audio frequency under the relatively poor environment of lighting conditions, still can dry by the help of atmosphere lamp etc. and hold off the atmosphere, so, the user often needs to use a plurality of equipment simultaneously, and the operation is comparatively loaded down with trivial details, and the use of a plurality of equipment makes user's cost rise, is unfavorable for promoting the market competitiveness of player product.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an audio player with an LED flash device, which is easy to operate and low in cost, in order to solve the technical problems of complicated operation and high cost for users.

An audio player comprises a casing with an opening on a main surface, a loudspeaker which is accommodated in an inner cavity of the casing and corresponds to the opening in a sound emitting direction, an LED lamp panel which is arranged at the outer edge of the opening, a light guide cover which covers the LED lamp panel and is detachably connected with the casing, and a speaker mesh which is embedded on the light guide cover and is used for protecting the loudspeaker;

a PCB is arranged in the shell, a main control circuit which comprises an MCU processor and is used for controlling the output of the loudspeaker, a power amplifier circuit which is used for sending audio playing signals to the MCU processor, a light-operated switch circuit which is used for receiving external instructions and sending light control instructions to the MCU processor, a lamp group driving circuit which is used for receiving the instructions of the MCU processor and controlling the work of an LED lamp panel, a volume control circuit which is electrically connected with the MCU processor and is provided with a volume switch encoder and a power management circuit which is provided with a charging interface and is used for supplying power to the player are arranged on the PCB;

the top surface of the shell is provided with a selector switch which is sleeved with a knob control and is electrically connected with the MCU processor, the knob control drives the selector switch to be in contact with different contacts in the volume control circuit when being rotated by external torque, and the volume control circuit sends an electric signal to the MCU processor so as to control the volume of the audio output by the loudspeaker; the knob control drives the change-over switch to contact with different contacts in the light-operated switch circuit when being pressed by external pressure, the light-operated switch circuit sends an electric signal to the MCU processor, and the lamp group driving circuit receives an instruction sent by the MCU processor and then controls the LED lamp panel to enter different light-emitting modes.

In one embodiment, the MCU processor controls the lamp driving circuit to enter a first control mode and a second control mode when the speaker is in an operating state and a non-operating state.

In one embodiment, when the loudspeaker works, the photoswitch circuit detects the amplitude of the output signal of the MCU processor and controls the LED lamp panel to enter a first long bright mode, a first horse race lamp mode and a first flashing mode; when the loudspeaker does not work, the MCU processor receives a changed level signal when the change-over switch is in contact with different contacts on the light-operated switch circuit, and the LED lamp panel is controlled by the lamp group driving circuit to enter a second long-bright mode, a second ticker mode and a second flashing mode.

In one embodiment, the master control circuit further comprises a sound sensor electrically connected with the MCU processor and used for detecting sound frequency and amplitude level, and the MCU processor sends an electrical signal to the light group driving circuit to control the LED lamp panel to enter the multiple ticker mode when receiving the electrical signal sent by the sound sensor and representing different sound amplitude values.

In one embodiment, the PCB board is further provided with a bluetooth module electrically connected with the MCU processor for communication connection with an external signal transmitting terminal.

In one embodiment, the LED lamp panel is an annular lamp panel arranged at the opening part, and a plurality of LED lamp beads are uniformly arranged on the annular lamp panel.

In one embodiment, the LED lamp beads are RGB three-color lamp beads.

In one embodiment, the charging interface is a Type-C interface.

In one embodiment, the outer surface of the light transmission part of the light guide cover is a convex cambered surface.

In one embodiment, the outer edge of the opening is provided with an annular limiting groove for limiting the position of the light guide cover.

Implement the utility model discloses an audio player, set up the LED lamp plate between speaker and loudspeaker net, carry out the optimal design through the change over switch to volume control, make change over switch both can adjust the audio frequency volume, can also send different signals of telecommunication in order to control the LED lamp plate and get into different light emitting mode to the photoswitch circuit, in order to satisfy the user demand to light when audio playback, so, the user only needs to purchase an audio player can realize audio playback and light control simultaneously, the quantity of the switch button etc. of audio player itself is unchangeable, the operation control degree of difficulty of equipment and user's acquisition cost have been reduced, be favorable to promoting the market competitiveness of player product.

Drawings

Fig. 1 is an exploded schematic view of an audio player according to an embodiment of the present invention;

FIG. 2 is a partially enlarged schematic view of a portion A of the embodiment shown in FIG. 1;

fig. 3 is a schematic diagram of a module structure of an audio player according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of a main control circuit according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of a switch according to an embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a volume control circuit according to an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of a light-operated switching circuit according to an embodiment of the present invention;

fig. 8 is a schematic circuit diagram of a lamp group driving circuit according to an embodiment of the present invention;

fig. 9 is a schematic circuit diagram of a power amplifier circuit according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1, the present invention provides an audio player 10 with an LED flashing device, which is easy to operate and has a low cost, the audio player 10 includes a casing 100 having an opening 110 on a main surface, a speaker 200 accommodated in an inner cavity of the casing 100 and having a sound emitting direction corresponding to the opening 110, an LED lamp panel 300 installed at an outer edge of the opening 110, a light guide cover 400 covering the LED lamp panel 300 and detachably connected to the casing 100, and a speaker mesh 500 embedded on the light guide cover 400 for protecting the speaker 200. In an embodiment, the casing 100 is a cubic structure, the top surface or any other side surface of the casing 100 is provided with a handle 120 for holding the audio player 10, and of course, a user can also tie a rope on the handle 120 as required, so as to limit the audio player 10 in an outdoor environment, prevent the audio player 10 from colliding and the like, and prolong the service life of the audio player 10. It should be noted that, in the present embodiment, the side of the cabinet 100 with a larger area and used for installing the speaker mesh 500 is a main surface of the cabinet 100, and this explanation can be referred to in other embodiments.

The LED lamp panel 300 is used to provide a lamp effect for the audio player 10 to meet the requirement of the user for light when listening to audio. In an embodiment, the LED lamp panel 300 is an annular lamp panel disposed at the opening 110, and a plurality of LED lamp beads 310 are uniformly disposed on the annular lamp panel. Preferably, the annular lamp panel is uniformly provided with 12 LED lamp beads 310, and each LED lamp bead 310 is an RGB three-color lamp bead. In this way, the circuit structure of the audio player 10 can be optimized to adjust the light-emitting modes of the LED lamp panel 300, that is, the light-emitting conditions of the 12 RGB three-color lamp beads are combined, so that different light-emitting conditions of the LED lamp panel 300 correspond to different working modes of the audio player 10.

The light guide cover 400 is used to protect the LED lamp panel 300 and limit the light range of the LED lamp panel 300, in other words, when the light guide cover 400 covers the LED lamp panel 300, the light emitted from the LED lamp panel 300 is transmitted only through the light transmission portion 410 of the light guide cover 400, and the light shape of the audio player 10 is the same as the light transmission portion 410 of the light guide cover 400. In actual production, the light-transmitting portion 410 of the light-guiding cover 400 can be shaped to manufacture audio players 10 of different models, so as to meet the individual requirements of users for different light shapes of the audio players 10. In an embodiment, the light guide cover 400 is an annular structure, a light-transmitting portion 410 facing away from the inner cavity of the chassis 100 is disposed on the light guide cover 400 at a position close to the inner ring of the light guide cover 400, and an outer surface of the light-transmitting portion 410 is a convex arc surface. The outer surface of the light transmission part 410 of the light guide cover 400 is designed to be a convex arc surface, and light emitted by the LED lamp panel 300 during operation is deflected towards the edge of the opening 110 when being transmitted through the convex arc surface, namely, the light is diffused in the transmission process, so that the light emitting area of the opening 110 of the audio player 10 is enlarged, and the light effect of the audio player 10 is favorably improved.

In an embodiment, the edge of the opening 110 is uniformly provided with a plurality of positioning posts 130, each positioning post 130 is provided with a threaded hole 140, the light guide cover 400 is provided with a plurality of positioning holes 420, the positioning holes 420 correspond to the positioning posts 130 one by one, and specifically, the threaded hole 140 on each positioning post 130 is correspondingly communicated with a positioning hole 420 and screwed with a screw 150 penetrating through the positioning hole 420, so as to realize the fixed connection between the light guide cover 400 and the casing 100. Further, the casing 100 is provided with an annular limiting groove 160 at an outer edge of the opening 110 for limiting the position of the light guide cover 400, and an inner contour of the annular limiting groove 160 is adapted to a shape of a side of the light guide cover 400 adjacent to the casing 100. Preferably, the annular limiting groove 160 is a square groove, one side of the light guide cover 400 close to the casing 100 is a square ring structure matched with the square groove, and thus, when the light guide cover 400 is embedded in the annular limiting groove 160, the light guide cover 400 is difficult to rotate or rock relative to the casing 100 due to the constraint of the inner wall and the corner of the annular limiting groove 160, namely, the positioning of the light guide cover 400 on the casing 100 is realized, so that the positioning hole 420 of the light guide cover 400 can be quickly aligned to the threaded hole 140 on the positioning column 130, and the locking screw 150 is facilitated, thereby improving the assembly efficiency of the audio player 10.

Referring to fig. 1 and fig. 2, in an embodiment, a clamping groove 430 is formed on an inner annular surface of the light guide cover 400, an elastic buckle 510 fastened with the clamping groove 430 is disposed on an annular side surface of the speaker mesh 500, during an installation process of the speaker mesh 500, the speaker mesh 500 is only required to be placed at an inner annular portion of the light guide cover 400, so that the elastic buckle 510 of the speaker mesh 500 is aligned with the clamping groove 430, and then the speaker mesh 500 is pressed, so that the elastic buckle 510 abuts against an outer surface of the clamping groove 430 and deforms until the elastic buckle 510 is completely embedded into the clamping groove 430, and the deformed elastic buckle 510 is constrained by an inner wall of the clamping groove 430 and is difficult to fall off from the clamping groove 430, thereby implementing the installation of the speaker mesh 500 on the light guide cover 400.

Referring to fig. 1 and 3, a PCB is disposed in the housing 100, the PCB is provided with a main control circuit 610 including an MCU processor 611 and configured to control the output of the speaker 200, a power amplifier circuit 620 configured to send an audio playing signal to the MCU processor 611, a light control switch circuit 630 configured to receive an external command and send a light control command to the MCU processor 611, a lamp group driving circuit 640 configured to receive a command from the MCU processor 611 and control the LED lamp panel 300 to operate, a volume control circuit 650 electrically connected to the MCU processor 611 and having a volume switch encoder 651, a power management circuit 660 having a charging interface and configured to supply power to the player, and a switch circuit 670 configured to control the audio player 10 to start and stop, preferably, the charging interface is a Type-C interface, such that an external charging wire can be electrically connected to the charging interface under a forward or reverse insertion condition, so as to access a current and a voltage to the audio player 10, the difficulty of charging the audio player 10 is reduced.

Further, a switch 680 sleeved with a knob control 681 and electrically connected to the MCU processor 611 is disposed on the top surface of the housing 100, the knob control 681, when rotated by an external torque, drives the switch 680 to contact with different contacts of the volume control circuit 650, and the volume control circuit 650 sends an electrical signal to the MCU processor 611 to control the volume of the audio output by the speaker 200; when the knob control 681 is pressed by an external force, the switch 680 is driven to contact with different contacts in the photoswitch circuit 630, the photoswitch circuit 630 sends an electrical signal to the MCU processor 611, and the lamp group driving circuit 640 receives an instruction sent by the MCU processor 611 and controls the LED lamp panel 300 to enter different light emitting modes.

Specifically, referring to fig. 4 to 6, the MCU processor 611 of this embodiment uses a chip with a model number of BP1032a2, the chip is provided with an MIC pin, a DAC pin, a POWER pin, a VOL + pin, a VOL-pin, etc., which are respectively used to connect the POWER supply terminal of the speaker 200, the adc, the POWER management circuit 660, and the volume output terminal of the volume control circuit 650, the volume switch encoder 651 includes three fixed contacts, i.e., contact 1, contact 4, and contact 3 in fig. 5, when the knob control 681 is rotated by an external torque, the knob control 681 drives the switch 680 to rotate, so that the movable contact on the switch 680 is connected to any one of contact 1, contact 4, or contact 3 to change the output level value of the volume switch encoder 651, and thus, the MCU processor 611 performs an operation according to the level values received by the VOL + pin and the VOL-pin, and further sends an electrical signal to the speaker 200 via the MIC pin, thereby controlling the volume of the speaker 200.

Referring to fig. 4, 7 and 8, when the knob control 681 is pressed by an external force, the knob control 681 drives the switch 680 to contact with different contacts in the photoswitch circuit 630, that is, contact 1, contact 4 and contact 3 in fig. 7, and since the circuits of contact 1, contact 4 and contact 3 are respectively connected to resistors with different resistances, in this case, the photoswitch circuit 630 inputs level values with different magnitudes to the ADC-KEY pin of the MCU processor 611 via the ADC-KEY terminal, and the MCU processor 611 calculates the level values connected to the ADC-KEY pin and then sends a predetermined electrical signal instruction to the lamp group driving circuit 640, so as to control the lamp group driving circuit 640 to invoke the LED lamp beads 310 of corresponding combination modes to operate, thereby entering different light emitting modes.

It should be noted that, in an embodiment, the main control circuit 610 is further provided with a clock module electrically connected to the MCU processor 611, and the adjustment of the operating mode of the LED lamp panel 300 can be realized by setting a response value of the clock module. For example, after the knob control 681 is pressed for a long time, for example, 3s, the photoswitch circuit 630 outputs a continuously high level to the MCU processor 611, in this case, the MCU processor 611 sends an instruction to the lamp group driving circuit 640 to control the LED lamp panel 300 to light up and start to operate, when the knob control 681 is pressed for a long time, under the control of the clock module, the MCU processor 611 may detect a level value sent by the photoswitch circuit 630 in a very short time and respond, for example, the MCU processor 611 may detect a level change of the photoswitch circuit 630 within 0.1s, and switch to the next operating mode according to the level change. In this embodiment, the LED lamp panel 300 is controlled to cyclically operate in several operating modes, such as off, long on, ticker, and flashing.

In one embodiment, the MCU processor 611 controls the lamp driving circuit 640 to enter the first control mode and the second control mode when the speaker 200 is in the working state and the non-working state. Further, in an embodiment, when the speaker 200 works, the photoswitch circuit 630 detects the magnitude of the output signal of the MCU processor 611, and controls the LED lamp panel 300 to enter the first long bright mode, the first ticker mode, and the first blinking mode; when the speaker 200 is not in operation, the MCU processor 611 receives the changed level signals when the switch 680 is in contact with different contacts of the photoswitch circuit 630, and the light bank driving circuit 640 controls the LED lamp panel 300 to enter a second long bright mode, a second ticker mode, and a second blinking mode.

Specifically, when the audio player 10 is in a non-audio playing state, that is, the speaker 200 does not work, in this case, if the knob control 681 is pressed, the MCU processor 611 only receives the electrical signal sent by the photoswitch circuit 630 and controls the lamp group driving circuit 640 to enter the second control mode, as illustrated in fig. 8, when the switch 680 is pressed and contacts with a predetermined contact on the photoswitch circuit 630 to control the LED lamp panel 300 to enter the first long bright mode, the colors of the 12 RGB three-color lamp beads are fixed, that is, the 12 RGB three-color lamp beads show the same color. When the switch 680 is pressed and contacts with a predetermined contact on the photoswitch circuit 630 to control the LED lamp panel 300 to enter the first ticker mode, the 12 RGB three-color lamp beads are sequentially lighted clockwise to form a ring, and every 3 RGB three-color lamp beads are used as a group of same color system for clockwise conversion. When the switch 680 is pressed and contacts with a predetermined contact on the photoswitch circuit 630 to control the LED lamp panel 300 to enter the first blinking mode, the colors of the 12 RGB three-color lamp beads are fixed, and as time goes on, each lamp bead becomes dim synchronously to be extinguished, then gradually becomes stronger to the maximum brightness, and then becomes weaker to circulate.

When the audio player 10 is in the audio playing state, that is, the speaker 200 is working, if the knob control 681 is pressed, the photoswitch circuit 630 and the power amplifier circuit 620 respectively receive the electrical signal output by the MCU processor 611 to enter the second control mode. As will be described below with reference to fig. 4, 7, 8, and 9, when the switch 680 is pressed and contacts with a predetermined contact on the photoswitch circuit 630 to control the LED lamp panel 300 to enter the second long bright mode, the 12 RGB three-color beads display the same set of colors, and after a predetermined time, for example, 20s, the 12 RGB three-color beads collectively change a set of color systems, for example, the red light effect is changed to a green light effect after 20s, and then changed to a blue light effect after 20 s.

When the switch 680 is pressed and contacts with a predetermined contact on the photoswitch circuit 630 to control the LED lamp panel 300 to enter the second ticker mode, the 12 RGB three-color lamp beads roll clockwise. In one embodiment, the main control circuit 610 further includes a sound sensor electrically connected to the MCU processor 611 and configured to detect the sound frequency and the amplitude level, and the MCU processor 611 sends an electrical signal to the light group driving circuit 640 to control the LED lamp panel 300 to enter the multiple ticker mode when receiving the electrical signal sent by the sound sensor and representing different sound amplitude values. For example, when the music bass is heavier, such as a lot of drum sounds, the ticker changes to two turns clockwise and two turns counterclockwise; when the high pitch is more, the marquee is changed clockwise, and the lamplight is changed in the same color system of 3 lamp beads in sequence; when the middle sound is emphasized, the horse race lamp is changed anticlockwise, and the lamplight is changed in the same color system of 3 lamp beads in sequence.

When the switch 680 is pressed and contacts with a predetermined contact on the photoswitch circuit 630 to control the LED lamp panel 300 to enter the second blinking mode, the MCU processor 611 may adjust the frequency of the light-emitting blinking of the LED lamp panel 300 according to the different sound frequency values sent by the sound sensor, for example, the blinking speed of the breathing light changes with the change of the music tempo, the time interval of the light blinking shortens when the music tempo is cheerful, and the time interval of the light blinking lengthens with the slowing of the music tempo.

In one embodiment, the top surface of the housing 100 is further provided with an illumination lamp 170, and the PCB is provided with an illumination control circuit 690 electrically connected to the MCU 611 and configured to control the operation of the illumination lamp 170. Further, in an embodiment, the PCB is further provided with a bluetooth module electrically connected to the MCU processor 611, for communicating with an external signal transmitting terminal. Specifically, after receiving a signal transmitted by an external signal transmitting terminal, such as an intelligent mobile device like a mobile phone or a tablet, the bluetooth module transmits the signal to the MCU processor 611, and the signal is further transmitted by the MCU processor 611 to the power amplifier circuit 620 for storage, so as to update the audio content to be played of the audio player 10.

Implement the utility model discloses an audio player 10, set up LED lamp plate 300 between speaker 200 and loudspeaker net 500, carry out the optimal design through change over switch 680 to volume control, make change over switch 680 both can adjust the audio frequency volume, can also send different signals of telecommunication to photoswitch circuit 630 and get into different light emitting mode with control LED lamp plate 300, in order to satisfy the user demand to light when the audio playback, so, the user only needs to purchase an audio player 10 and can realize audio playback and light simultaneously and adjust, the quantity of the switch button etc. of audio player 10 itself is unchangeable, the operation control degree of difficulty of equipment and user's acquisition cost have been reduced, be favorable to promoting the market competitiveness of player product.

The technical features of the embodiments described above may 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 being within 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. An audio player is characterized by comprising a casing, a loudspeaker, an LED lamp panel, a light guide cover and a speaker mesh, wherein an opening is formed in the main surface of the casing, the loudspeaker is accommodated in an inner cavity of the casing, the sound emitting direction of the loudspeaker corresponds to the opening, the LED lamp panel is installed on the outer edge of the opening, the light guide cover covers the LED lamp panel and is detachably connected with the casing, and the speaker mesh is embedded on the light guide cover and used for protecting the loudspeaker;

2. The audio player according to claim 1, wherein the MCU processor controls the lamp driving circuit to enter a first control mode and a second control mode respectively when the speaker is in an operating state and a non-operating state.

3. The audio player according to claim 2, wherein when the speaker is in operation, the photoswitch circuit detects the magnitude of the output signal of the MCU processor, and controls the LED lamp panel to enter a first long bright mode, a first ticker mode, and a first blinking mode; when the loudspeaker does not work, the MCU processor receives a changed level signal when the change-over switch is in contact with different contacts on the light-operated switch circuit, and the LED lamp panel is controlled by the lamp group driving circuit to enter a second long-bright mode, a second ticker mode and a second flashing mode.

4. The audio player according to claim 3, wherein the main control circuit further includes a sound sensor electrically connected to the MCU processor and configured to detect sound frequency and amplitude, and the MCU processor sends an electrical signal to the light group driving circuit to control the LED lamp panel to enter the multiple ticker mode when receiving electrical signals representing different sound amplitude values sent by the sound sensor.

5. The audio player according to claim 1, wherein the PCB board is further provided with a bluetooth module electrically connected to the MCU processor for communicating with an external signal transmitting terminal.

6. The audio player according to claim 1, wherein the LED lamp panel is an annular lamp panel disposed at the opening, and a plurality of LED lamp beads are uniformly disposed on the annular lamp panel.

7. The audio player of claim 6, wherein the LED lamp beads are RGB three-color lamp beads.

8. The audio player of claim 1, wherein the charging interface is a Type-C interface.

9. The audio player according to any one of claims 1 to 8, wherein an outer surface of the light-transmitting portion of the light guide cover is a convex arc surface.

10. The audio player of claim 9, wherein an outer edge of the opening is provided with an annular retaining groove for defining a position of the light guide cover.