CN209105414U

CN209105414U - A kind of college English Teaching speaker

Info

Publication number: CN209105414U
Application number: CN201822268223.2U
Authority: CN
Inventors: 丁薇
Original assignee: Changsha Aeronautical Vocational and Technical College
Current assignee: Changsha Aeronautical Vocational and Technical College
Priority date: 2018-12-31
Filing date: 2018-12-31
Publication date: 2019-07-12
Anticipated expiration: 2028-12-31

Abstract

The utility model relates to stereo set fields, more particularly to a kind of college English Teaching speaker, including voice box casing, the high pitch loudspeaker and woofer that are mounted on shell, two sides are equipped with high pitch loudspeaker to the woofer up and down, with the orthodrome recess of leading note on the corresponding voice box casing in woofer back, with the small arc-shaped position of leading note on the corresponding voice box casing in high pitch loudspeaker back, small arc-shaped position and orthodrome recessed tangent connection have the first sound mouth between bass loudspeaker and high pitch loudspeaker.Radiative acoustic wave is reflected towards orthodrome recess backward, two kinds after radiative acoustic wave converges backward from the first sound mouth sounding, and it is superimposed with forward radiation sound wave, improve playback efficiency, reduce frequency response lower limit, improve low frequency characteristic and reduce the distortion near resonance frequency.Such sound clarity, three-dimensional sense is strong, meets teaching demand.

Description

A kind of college English Teaching speaker

Technical field

The utility model relates to stereo set fields, and in particular to a kind of college English Teaching speaker.

Background technique

Speaker refers to a kind of equipment that audio signal can be transformed to sound, is amplified after handling to audio signal by speaker Sound itself is played back out, its sound is made to become larger.Speaker is directly come into contacts with the sense of hearing of people.In college English Teaching, because of class Room is larger, needs speaker to amplify teaching sound, guarantees that student can hear.But if the voice quality of speaker is undesirable, Student does not hear pronunciation of English, can seriously affect quality of listening to the teacher, and is not able to satisfy the requirement of teaching.

Summary of the invention

To solve problems of the prior art, the utility model provides a kind of college English Teaching speaker, sound quality Clearly, three-dimensional sense is strong, meets teaching demand.

A kind of to achieve the above purpose, the technical solution of the present invention is: college English Teaching speaker, including speaker Shell, the high pitch loudspeaker and woofer being mounted on shell, the woofer are raised two sides up and down equipped with high pitch Sound device, with the orthodrome recess of leading note on the corresponding voice box casing in woofer back, high pitch loudspeaker back is corresponding With the small arc-shaped position of leading note, small arc-shaped position and the recessed tangent connection of orthodrome, woofer and tweeter on voice box casing There is the first sound mouth between device.Setting woofer in two sides matches high pitch loudspeaker up and down, and high pitch is clear fine and smooth, in Sound wants full bright；The backward radiation sound wave of high pitch loudspeaker encounters orthodrome recess, and backward radiation sound wave sound wave is along great circle The cambered surface of arc dimpled grain is reflected to both sides, while the radiative acoustic wave backward of woofer encounters small arc-shaped position, backward radiative acoustic wave Reflected towards orthodrome recess, two kinds after radiative acoustic wave converges backward from the first sound mouth sounding, and with forward radiation sound wave phase Superposition improves playback efficiency, reduces frequency response lower limit, improves low frequency characteristic and reduces the distortion near resonance frequency.Such sound Matter is clear, and three-dimensional sense is strong, meets teaching demand.

There are two the woofer is set, two woofers are located between two woofers, and two low The second sound mouth is equipped between sound loudspeaker, the orthodrome recess of two woofers passes through the smooth connection of raised circular arc.Two A woofer promotes bass zone, so that natural tone be kept to balance, sounds rich in depth, range, plentiful, and It is clear pure；The backward radiation sound wave of two woofers is converged by raised circular arc, from the second sound mouth sounding, with forward direction Radiative acoustic wave is superimposed, improves playback efficiency.

The high pitch loudspeaker and woofer is cylinder, is cooperated with orthodrome recess and small arc-shaped position, circular arc Transition reduces propagation resistance.

The voice box casing has pedestal；Facilitate placement speaker in this way.

The voice box casing is equipped with display；If music or English are played, by display it can be seen that broadcasting The lyrics put or English content.

Detailed description of the invention

Fig. 1 is backward radiation Acoustic Wave Propagation schematic diagram inside the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is the perspective view of the utility model.

Specific embodiment

The utility model is described in further details with reference to the accompanying drawings and detailed description.

As shown in Figure 1, Figure 2 and Figure 3, a kind of college English Teaching speaker, including 1, two tweeter of voice box casing 2, two woofers 3 of device, pedestal 4 and display 5, two woofers 3 are setting up and down, and two woofer 3 Between high pitch loudspeaker 2, with the orthodrome recess 11 of leading note, high pitch on the corresponding voice box casing 1 in woofer back With the small arc-shaped position 12 of leading note on the corresponding voice box casing 1 in 2 back of loudspeaker, small arc-shaped position 12 and orthodrome recess 11 are tangent Connection has the first sound mouth 13, is equipped with second between two woofers between woofer 3 and high pitch loudspeaker 2 Sound mouth 14, the orthodrome recess 11 of two woofers 3 pass through the smooth connection of raised circular arc 15.Two woofers 3 Bass zone is promoted, so that natural tone be kept to balance, is sounded rich in depth, range, plentiful and clear pure.Two A about 2 two sides of high pitch loudspeaker setting woofer 3 matches, and high pitch is clear fine and smooth, and middle pitch wants full bright；High pitch The backward radiation sound wave of loudspeaker 2 encounters orthodrome recess 11, backward radiation sound wave sound wave along orthodrome dimpled grain cambered surface to Both sides refraction, the radiative acoustic wave backward of two woofers pass through raised circular arc 15 and converge from 14 sounding of the second sound mouth, together When woofer 3 radiative acoustic wave backward encounter small arc-shaped position 12, backward radiative acoustic wave towards orthodrome recess 11 reflect, two From 13 sounding of the first sound mouth after kind radiative acoustic wave converges backward, such backward radiation sound wave and forward radiation sound wave are superimposed, Playback efficiency is improved, frequency response lower limit is reduced, improve low frequency characteristic and reduces the distortion near resonance frequency.Sound quality is clear in this way Clear, three-dimensional sense is strong, meets teaching demand.

The high pitch loudspeaker 2 and woofer 3 is cylinder, is matched with orthodrome recess 11 and small arc-shaped position 12 It closes, arc transition, reduces propagation resistance.

The voice box casing 1 has pedestal 4；It is disk 41 below pedestal, disk passes through dowel 42 and speaker shell Body is hinged so that it is convenient to place speaker.

The voice box casing 1 is equipped with display 5；Display 5 is that rectangle passes through if playing music or English Display can see the lyrics or English content of broadcasting.

Claims

1. a kind of college English Teaching speaker, including voice box casing, the high pitch loudspeaker and bass loudspeaker that are mounted on shell Device, it is characterised in that: two sides are equipped with high pitch loudspeaker, the corresponding speaker in woofer back to the woofer up and down There is the orthodrome recess of leading note on shell, there is the small arc-shaped position of leading note on the corresponding voice box casing in high pitch loudspeaker back, Small arc-shaped position and orthodrome recessed tangent connection have the first sound mouth between bass loudspeaker and high pitch loudspeaker.

2. a kind of college English Teaching speaker according to claim 1, it is characterised in that: the woofer is set There are two, two woofers are located between two woofers, the second sound mouth is equipped between two bass loudspeakers, The orthodrome recess of two woofers passes through the smooth connection of raised circular arc.

3. a kind of college English Teaching speaker according to claim 1, it is characterised in that: the high pitch loudspeaker and Woofer is cylinder.

4. a kind of college English Teaching speaker according to claim 1, it is characterised in that: the voice box casing is divided into There is pedestal.

5. a kind of college English Teaching speaker according to claim 1, it is characterised in that: set on the voice box casing There is display.