CN219248055U

CN219248055U - Omnidirectional conference loudspeaker

Info

Publication number: CN219248055U
Application number: CN202320203292.3U
Authority: CN
Inventors: 陈玉水
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-06-23
Anticipated expiration: 2033-02-14

Abstract

The utility model discloses an omnidirectional conference loudspeaker, which relates to the technical field of loudspeakers and comprises a shell, wherein a PCB (printed circuit board) is arranged in the shell; brackets are arranged on two sides of the PCB, and microphones are arranged in the middle of the two groups of brackets; the vibration cavity is arranged in the shell, the two sides of the vibration cavity are provided with a second fixing frame, and the middle parts of the two groups of second fixing frames are provided with vibration films; the two groups of microphones and the two groups of vibrating membranes are vertically arranged, so that mutual interference is avoided; the first mount is located the top in vibrations chamber, and the middle part of mount one sets up the speaker, reserves the gap between the bottom of speaker and the vibrations chamber. According to the utility model, the microphone and the vibrating diaphragm are vertically arranged, so that the distance between the microphone and the vibrating diaphragm is relatively long, the phenomenon that the microphone and the vibrating diaphragm are mutually interfered in a straight line is avoided to the greatest extent, and the communication definition is improved; in addition, the upper edge of the loudspeaker is fixed, the lower part is in a suspended state, the influence of vibration on the tone quality is reduced to the greatest extent, and the tone quality of the loudspeaker is improved.

Description

Omnidirectional conference loudspeaker

Technical Field

The utility model relates to the technical field of speakers, in particular to an omnidirectional conference speaker.

Background

The loudspeaker is a transducer for converting electric signals into acoustic signals, and the performance of the loudspeaker has great influence on sound quality. The loudspeaker is the weakest element in the sound equipment and is in turn the most important component for the sound effect. Speakers are of a wide variety and are widely priced. The audio electric energy makes the cone or the diaphragm vibrate and generate resonance with surrounding air to make sound through electromagnetic, piezoelectric or electrostatic effects.

At present, when most of the loudspeakers are used, partial noise exists more or less, so that the tone quality of the whole loudspeakers is poor, and the clarity of conversation is difficult to ensure.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an omnidirectional conference loudspeaker.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

an omnidirectional conference loudspeaker comprises a shell, wherein a PCB board is arranged in the shell;

brackets are arranged on two sides of the PCB, and microphones are arranged in the middle of the two groups of brackets;

the vibration cavity is arranged in the shell, the two sides of the vibration cavity are provided with a second fixing frame, and the middle parts of the two groups of second fixing frames are provided with vibration films;

the two groups of microphones and the two groups of vibrating membranes are vertically arranged, so that mutual interference is avoided;

the vibration device comprises a first fixing frame, a second fixing frame and a vibration cavity, wherein the first fixing frame is located above the vibration cavity, a loudspeaker is arranged in the middle of the first fixing frame, and a gap is reserved between the bottom of the loudspeaker and the vibration cavity.

As a preferable technical scheme of the utility model, the top of the first fixing frame is fixedly provided with a lower shell, the middle part of the lower shell is provided with a cavity matched with the size of a loudspeaker in advance, the top end of the lower shell is fixedly provided with a sound outlet hole cover, and holes in the middle of the sound outlet hole cover correspond to the cavity.

As a preferable technical scheme of the utility model, a key board is arranged at the top of the sound outlet hole cover, a layer of dustproof cloth is tightly attached to the outer edge of the top of the sound outlet hole cover, a switch key is arranged in the middle of the dustproof cloth, the switch key is in contact with the key board, and the key board is electrically connected with the PCB.

As a preferable technical scheme of the utility model, a bottom shell is fixedly arranged at the bottom of the shell, and a circle of anti-skid foot pads are arranged in the middle of the bottom end of the bottom shell.

As a preferable technical scheme of the utility model, the edge of the PCB is also provided with an adjusting key, the adjusting key is connected with the PCB, and the adjusting key extends to the outer edge of the shell to be in a convex shape.

Compared with the prior art, the utility model has the beneficial effects that: the microphone and the vibrating diaphragm are vertically arranged, so that the distance between the microphone and the vibrating diaphragm is relatively long, the phenomenon that the microphone and the vibrating diaphragm are mutually interfered in a straight line is avoided to the greatest extent, and the communication definition is improved; in addition, the upper edge of the loudspeaker is fixed, the lower part is in a suspended state (gaps exist between the lower part and peripheral shell materials), the influence of vibration on sound quality is reduced to the greatest extent, and the sound quality of the loudspeaker is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

Fig. 1 is a schematic diagram of the overall structure of an omnidirectional conference speaker according to the present utility model;

fig. 2 is an exploded view of an omnidirectional conference speaker according to the present utility model;

fig. 3 is a schematic diagram of a microphone and a vibrating membrane of an omni-directional conference speaker according to the present utility model;

fig. 4 is a schematic diagram of a microphone and a vibration membrane of an omni-directional conference speaker according to the present utility model;

fig. 5 is a cross-sectional view of an omni-directional conference speaker according to the present utility model.

In the figure: 1. a switching key; 2. a dust-proof cloth; 3. a key sheet; 4. a sound outlet hole cover; 5. a lower housing; 6. a speaker; 7. a first fixing frame; 8. a vibration cavity; 9. a second fixing frame; 10. a vibrating membrane; 11. a PCB board; 12. a microphone; 13. a bracket; 14. adjusting the keys; 15. a housing; 16. a bottom case; 17. an anti-skid foot pad.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model;

referring to fig. 1-5, an omnidirectional conference speaker includes a housing 15, and a PCB board 11 is disposed inside the housing 15;

brackets 13 are arranged on two sides of the PCB 11, and microphones 12 are arranged in the middle of the two groups of brackets 13;

the vibration cavity 8 is arranged in the shell 15, the two sides of the vibration cavity 8 are provided with the second fixing frames 9, and the middle parts of the two groups of second fixing frames 9 are provided with the vibration film 10;

the two groups of microphones 12 and the two groups of vibrating membranes 10 are vertically arranged, so that mutual interference is avoided, the distance between the two groups of microphones is relatively long, the phenomenon that the two groups of microphones are mutually interfered in a straight line is avoided to the greatest extent, and the communication definition is improved;

the first fixing frame 7, the first fixing frame 7 is located the top in vibrations chamber 8, and the middle part of the first fixing frame 7 sets up speaker 6, reserves the gap between speaker 6's bottom and the vibrations chamber 8, and speaker 6's upper edge is fixed, and the lower part is unsettled state (there is the gap with peripheral shell material), furthest reduces vibrations to the influence of tone quality, improves the tone quality of speaker.

The top of mount one 7 fixed mounting has lower casing 5, and the cavity of the adaptation of 5 middle part of lower casing is equipped with in advance with speaker 6 size looks adaptation, and the top fixed mounting of lower casing 5 has a sound hole cover 4, and the hole in the middle part of sound hole cover 4 corresponds each other with the cavity.

The top of play sound hole cover 4 is provided with keypad 3, and the top outward flange of play sound hole cover 4 hugs closely one deck dust cloth 2, and the middle part of dust cloth 2 is equipped with on-off key 1, and on-off key 1 and keypad 3 contact each other, keypad 3 and the mutual electric connection of PCB board 11.

The bottom fixed mounting of shell 15 has drain pan 16, and the bottom middle part of drain pan 16 sets up round anti-skidding callus on the sole 17, and when whole equipment was placed on the desktop, the anti-skidding callus on the sole 17 of drain pan 16 bottom contacted rather than the desktop, and this anti-skidding callus on the sole 17 is the rubber material, and then increases the frictional force with the desktop, reinforcing anti-skidding degree.

The edge of the PCB 11 is also provided with an adjusting key 14, the adjusting key 14 is connected with the PCB 11, the outer edge of the adjusting key 14 extending to the shell 15 is in a convex shape, the adjusting key 14 is in a convex shape, so that the operation of a later user is facilitated, and the adjusting key 14 can control the volume increase and decrease of the whole equipment.

Claims

1. An omni-directional conference speaker, comprising:

a shell (15), wherein a PCB (11) is arranged in the shell (15);

brackets (13) are arranged on two sides of the PCB (11), and microphones (12) are arranged in the middle of the two groups of brackets (13);

the vibration cavity (8) is arranged in the shell (15), the two sides of the vibration cavity (8) are provided with a second fixing frame (9), and the middle parts of the two fixing frames (9) are provided with vibration films (10);

the two groups of microphones (12) and the two groups of vibrating membranes (10) are vertically arranged, so that mutual interference is avoided;

the vibration device comprises a first fixing frame (7), wherein the first fixing frame (7) is located above a vibration cavity (8), a loudspeaker (6) is arranged in the middle of the first fixing frame (7), and a gap is reserved between the bottom of the loudspeaker (6) and the vibration cavity (8).

2. The omnidirectional conference speaker according to claim 1, wherein a lower housing (5) is fixedly mounted at the top of the first fixing frame (7), a cavity matched with the size of the speaker (6) is preset in the middle of the lower housing (5), a sound outlet hole cover (4) is fixedly mounted at the top end of the lower housing (5), and holes in the middle of the sound outlet hole cover (4) correspond to the cavity.

3. The omnidirectional conference loudspeaker according to claim 2, wherein a key board (3) is arranged at the top of the sound outlet hole cover (4), a layer of dustproof cloth (2) is tightly attached to the outer edge of the top of the sound outlet hole cover (4), a switch key (1) is arranged in the middle of the dustproof cloth (2), the switch key (1) is in contact with the key board (3), and the key board (3) is electrically connected with the PCB (11).

4. An omnidirectional conference speaker as recited in claim 1, wherein said bottom of said housing (15) is fixedly mounted with a bottom shell (16), and a ring of anti-slip foot pads (17) are provided in the middle of the bottom end of said bottom shell (16).

5. An omnidirectional conference loudspeaker as recited in claim 1, characterized in that said PCB (11) is further provided with adjustment keys (14) at its edges, said adjustment keys (14) being interconnected with the PCB (11), and the outer edges of the adjustment keys (14) extending to the housing (15) being convex.