CN211656376U

CN211656376U - Portable speaker is used in teaching

Info

Publication number: CN211656376U
Application number: CN202020756373.2U
Authority: CN
Inventors: 李静
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-10-09
Anticipated expiration: 2030-05-09

Abstract

The utility model is suitable for a speaker technical field provides a portable speaker is used in teaching, the power distribution box comprises a box body, the box both sides are connected with the ear seat, the ear seat is connected with portable area, the inside sound source that is equipped with of box amplifies passageway crowd, the box outer wall is opened there is outer sound hole, the downthehole sound generating mechanism that is connected with of sound hole. The device has solved in the classroom of teaching because of the restriction of condition makes teacher's sound can not the effectual problem of spreading to the student's ear under each, can satisfy portable slim and graceful and sound spreading's needs simultaneously.

Description

Portable speaker is used in teaching

Technical Field

The utility model belongs to the technical field of the speaker, especially, relate to a portable speaker is used in teaching.

Background

The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.

In the classroom of teaching, because of the restriction of condition make teacher's sound can not effectual spread to each student's ear under, some public address equipment can not satisfy portable slim and graceful and wide demand of sound transmission simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a portable speaker is used in teaching aims at solving in the classroom of teaching, makes teacher's sound can not effectually propagate to the student's ear of every position bottom because of the condition restriction, and certain public address equipment can not satisfy the problem of the wide needs of portable slim and graceful sound propagation simultaneously.

The embodiment of the utility model provides a realize like this, a portable speaker is used in teaching, the power distribution box comprises a box body, the box both sides are connected with the ear seat, the ear seat is connected with portable area, the inside sound source that is equipped with of box enlarges the passageway crowd, the box outer wall is opened there is outer sound hole, sound production device is connected to the sound hole in.

Preferably, the sound source amplification channel group comprises a plurality of echo cavities, the echo cavities are communicated with a merged sound channel, and the merged sound channel is communicated with the sound amplification cavity.

Preferably, the echo cavity is partially elliptical, the radii of the plurality of echo cavities gradually increase from the center to the outside, the longitudinal depth of each echo cavity gradually decreases, and strip-shaped corrugations in the vertical direction are arranged in the sound amplification cavity.

Preferably, sound generating mechanism includes T iron, T iron top is connected with the magnet, the magnet top is connected with huasi, huasi is connected with the safety cover, T iron nestification has the voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil upper end is connected with the bullet ripples, bullet ripples center is connected with the cone, the cone upper end is connected with rolls over the ring, it is connected with the basin of borduring to roll over the ring, borduring the basin connection bullet ripples outer lane.

Preferably, the safety cover of outer phonation hole chucking sound generating mechanism, the position is located the two-thirds department of safety cover is gone into to outer phonation hole card, it has evenly distributed's passageway to open on the safety cover.

The embodiment of the utility model provides a pair of portable speaker is used in teaching, the device have solved in the classroom of teaching because of the condition restriction makes teacher's sound can not effectually spread the problem in every beneath student's ear, can satisfy portable slim and graceful and the wide needs of sound transmission simultaneously.

Drawings

Fig. 1 is a structural diagram of a portable speaker for teaching according to an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a structural view of the sound emitting device.

In the drawings: 1. a box body; 101. an ear mount; 102. a hand strap; 2. a sound source amplification channel group; 201. an echo cavity; 202. merging the sound channels; 203. a sound amplification chamber; 2031. strip corrugation; 3. an external sound emitting hole; 4. a sound producing device; 401. t iron; 402. a magnet; 403. huasi; 404. a protective cover; 4041. a channel; 405. a voice coil; 406. elastic wave; 407. a paper basin; 408. folding the ring; 409. and (5) edge-wrapping basins.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Example 1:

as shown in fig. 1 and 2, for the utility model discloses a portable speaker's for teaching structure chart is provided to an embodiment, including box 1, box 1 both sides are connected with ear seat 101, ear seat 101 is connected with portable area 102, box 1 is inside to be equipped with sound source amplification channel crowd 2, 1 outer wall of box is opened has outer sound hole 3, sound generating mechanism 4 is connected to the sound hole 3 in.

In one embodiment of the utility model, the box body 1 is made of light material, and the hand strap 102 is convenient for carrying; when the sound generating device 4 generates a certain degree of sound due to the sensing of the current change, the sound is emitted from the sound emitting hole 3, and the other part of the sound source passes through the sound source amplifying channel group 2, is amplified in the sound source amplifying channel group 2 and then is emitted from the outlet of the sound amplifying cavity 203, so that the sound can be transmitted farther through the interaction of direct sound transmission and echo amplification.

Example 2:

as shown in fig. 1, for the structure diagram of the portable speaker for teaching provided by an embodiment of the present invention, the sound source amplification channel group 2 includes a plurality of echo cavities 201, the echo cavities 201 communicate with the merged sound channel 202, and the merged sound channel 202 communicates with the sound amplification cavity 203.

In an embodiment of the present invention, part of the sound sources of the sound generating apparatus 4 forms echoes in the echo cavity 201 and a plurality of echoes are overlapped to form a mixed sound, the mixed sound enters the sound amplification cavity 203 through the merged sound channel 202, and the sound amplification cavity 203 amplifies the mixed sound.

Example 3:

as shown in fig. 1, for the structure diagram of a portable speaker for teaching provided by an embodiment of the present invention, the echo cavity 201 is a partial ellipse, and is a plurality of the echo cavity 201 is gradually increased from the center to the outer radius, and each the longitudinal depth of the echo cavity 201 is gradually reduced, and the bar-shaped corrugation 2031 in the vertical direction is arranged in the sound amplification cavity 203.

In an embodiment of the present invention, the echo cavity 201 is a partial ellipse, the radius of the echo cavity 201 increases gradually from the center to the outside, and the longitudinal depth of the echo cavity 201 decreases gradually, which are all for the sound.

Example 4:

as shown in fig. 3, for sound generating mechanism 4's structure diagram, sound generating mechanism 4 includes T iron 401, T iron 401 top is connected with magnet 402, magnet 402 top is connected with china 403, china 403 is connected with safety cover 404, T iron 401 nestification has voice coil 405, voice coil 405 upper end is connected with bullet ripples 406, bullet ripples 406 center is connected with cone 407, cone 407 upper end is connected with and rolls over ring 408, it is connected with bordure basin 409 to roll over ring 408, bordure basin 409 and connect bullet ripples 406 outer lane.

The utility model discloses an in an embodiment, voice coil 405 connecting wire passes through electric current for voice coil 405 produces magnetic induction, and voice coil 405 and magnet 402 are because of magnetic force relative motion, and voice coil 405 drives and plays ripples 406 vibration from top to bottom, plays ripples 406 vibrations of moving air and makes the corresponding vibration of cone 407, thereby produces sound.

Example 5:

as shown in fig. 3, which is a structural diagram of the sound generating device 4, the protective cover 404 of the sound generating device 4 is clamped by the outer sound emitting hole 3, the clamping position of the outer sound emitting hole 3 is located at two thirds of the protective cover 404, and the protective cover 404 is provided with evenly distributed channels 4041.

The utility model discloses an embodiment, the safety cover 404 of 3 chucking sound generating mechanism 4 of outer phonate hole, the position is located two-thirds department of safety cover 404 that the card of outer phonate hole 3 advances, and its purpose is in order to cut apart into two parts with the sound that safety cover 404 came out, and it has evenly distributed's passageway 4041 to open on the safety cover 404 to be favorable to the passing through of sound.

The above embodiment of the utility model provides a portable speaker is used in teaching, the device has solved in the classroom of teaching because of the condition restriction makes teacher's sound can not effectually spread the problem in every beneath student's ear, can satisfy portable slim and graceful and sound wide propagation's needs simultaneously.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a portable speaker is used in teaching, includes box (1), its characterized in that, box (1) both sides are connected with ear seat (101), ear seat (101) are connected with portable area (102), box (1) inside is equipped with sound source and amplifies passageway crowd (2), box (1) outer wall is opened has outer phonate hole (3), phonate hole (3) in-connection has sound generating mechanism (4).

2. Portable loudspeaker for teaching according to claim 1, characterised by that the sound source amplification channel group (2) comprises several echo chambers (201), the echo chambers (201) communicating with a merged channel (202), the merged channel (202) communicating with a sound amplification chamber (203).

3. A portable speaker for teaching as claimed in claim 2, wherein said echo chamber (201) is partially elliptical, a plurality of said echo chambers (201) have increasing radii from the center to the outside, the longitudinal depth of each said echo chamber (201) is decreasing, and a vertical strip-shaped corrugation (2031) is provided in said sound amplification chamber (203).

4. The portable speaker is used in teaching of claim 1, characterized in that sound generating mechanism (4) includes T iron (401), be connected with magnet (402) above T iron (401), be connected with china (403) above magnet (402), china (403) are connected with safety cover (404), T iron (401) nestification has voice coil (405), voice coil (405) upper end is connected with bullet ripples (406), bullet ripples (406) center is connected with cone (407), cone (407) upper end is connected with corrugated rim (408), corrugated rim (408) are connected with bordures basin (409), bordure basin (409) is connected with bullet ripples (406) outer lane.

5. Teaching portable loudspeaker according to claim 1, characterized in that the outer sound-emitting hole (3) is clamped with a protective cover (404) of the sound-emitting device (4), the clamping position of the outer sound-emitting hole (3) is located at two thirds of the protective cover (404), and the protective cover (404) is provided with evenly distributed channels (4041).