CN205160761U

CN205160761U - Leading note device for audio amplifier

Info

Publication number: CN205160761U
Application number: CN201520890904.6U
Authority: CN
Inventors: 李杨春
Original assignee: JCLEON INTERNATIONAL ELECTRIC CO Ltd
Current assignee: JCLEON INTERNATIONAL ELECTRIC CO Ltd
Priority date: 2015-11-10
Filing date: 2015-11-10
Publication date: 2016-04-13
Anticipated expiration: 2025-11-10

Abstract

The utility model discloses a leading note device for audio amplifier, including the body with establish the partial piece in the body, the body has sound inlet and sound outlet, has the sound duct between partial piece and the body, sound duct and sound inlet and sound outlet communicate with each other, from sound inlet through the sound duct to sound outlet's sound path less than the same. Owing to set up the partial piece, poor the same to sound outlet's sound path through the sound duct from sound inlet, consequently, the phenomenon that the stack was offset can not appear in the high pitch in the transmittance process, and the loss of high pitch is little, can the gauge height.

Description

A kind of audio amplifier voice guide device

Technical field

The utility model relates to audio amplifier, especially the voice guide device of high pitch.

Background technology

Audio amplifier is the equipment converting electrical signals to sound, and each several part design of audio amplifier directly affects the effect of sound.

Current audio amplifier is primarily of compositions such as casing, loudspeaker, bass horn, bugles.The sound that loudspeaker sends sends high pitch after bugle, but because having path difference, high pitch in bugle or audio amplifier occur outward to superpose the phenomenon offset, high pitch can weaken.

Summary of the invention

Occur superposing the phenomenon offset in transmittance process to reduce sound, the utility model provides a kind of audio amplifier voice guide device.

For achieving the above object, a kind of audio amplifier voice guide device, comprises body and is located at the partial block in body, body has into sound mouth and sound mouth, between partial block and body, there is tone channel, tone channel with enter sound mouth and sound mouth communicates, identical to the path difference of sound mouth through tone channel certainly entering sound mouth.

Owing to being provided with partial block, identical to the path difference of sound mouth through tone channel certainly entering sound mouth, therefore, the phenomenon that high pitch there will not be superposition to offset in transmittance process, the loss of high pitch is little, and energy is high.

Further, described partial block is prismatic.Like this, easily allow the path difference in body identical.

Further, described body is flat, and before and after body, inwall is from bottom to top towards outer incline, and the left and right sides of partial block is connected with inboard wall of tube body.Like this, the tone channel of sound through front and back spreads out of, and coordinates the partial block of prismatic, easily ensures that path difference is identical.

Further, entering sound mouth is taper type, and the lower end of partial block is higher than entering sound mouth.This structure, when sound is after loudspeaker send, be lower large little taper type owing to entering sound mouth, therefore, the phenomenon of assembling can occur at the upper end sound entering sound mouth, the sound in the lower end of partial block through assembling is divided into multichannel and passes through tone channel, sound has carried out mixed once in accumulation process, like this, the sound be assigned in each tone channel can be more even, and that speaks is effective.

Accompanying drawing explanation

Fig. 1 is the stereogram of audio amplifier.

Fig. 2 is A-A cutaway view in Fig. 1.

Fig. 3 is B-B cutaway view in Fig. 1.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.

Audio amplifier comprises casing 1, loudspeaker 2 and bass horn as shown in Figure 1 to Figure 3.

In the utility model, take Fig. 2 as view directions, D score described in the utility model is under in Fig. 2, upper in Fig. 2 be described in the utility model " on ", a left side in Fig. 2 is " left side " in the utility model, the right side in Fig. 2 is " right side " in the utility model, and front in Fig. 2 is " front " described in the utility model, " afterwards " described in non-the utility model after in Fig. 2.

Described casing comprises base plate 11, side plate 12 and top board 13.Base plate 11, side plate 12 and top board 13 surround cavity 100.

As shown in Figures 2 and 3, left and right sides plate is substantially parallel, and front and back biside plate has certain angle.Have at the middle part of left plate and right plate and drag for empty 121, corresponding to the position of dragging for empty 121, closure member 122 is installed in the inner side of left plate and right plate, the cross section of closure member 122 roughly takes the shape of the letter U, when hand channel drag for empty 121 extend in closure member 122 time, facilitate portable audio amplifier.The lower end of left and right sides plate stretches out base plate 11 downwards.

As shown in Figure 2, described top board 13 comprise the level board 131 that extends internally respectively from the upper end of left plate and right plate and from level board 131 to casing center and to the swash plate 132 of downward-extension, angle between two swash plates 132 is acute angle, two swash plates 132 are respectively equipped with bass horn installing hole 1321, and bass horn installing hole 1321 inwall is provided with step.Be respectively equipped with in the both sides, front and back of swash plate 132 upwards extend keep out flange 1323.The through hole 133 communicated with cavity 100 is provided with between two swash plates 132.

As shown in Figure 2 to Figure 3, be provided with cover plate 14 at the upper surface of swash plate 132, keeping out flange 1323, to carry out front and back to cover plate 14 spacing.As shown in Figure 3, cover plate 14 is provided with between bass outlet 141, two cover plates and is provided with high pitch outlet 143, as shown in Figure 2, the lower surface of cover plate 14 corresponds to bass horn and is provided with caveli 142.

The edge of bass horn is supported by step 1322, and the lower part that bass horn is positioned at edge enters into cavity 100 through bass horn installing hole 1321; Cover plate 14 is fixed by screws on swash plate 132, cover plate 14 is pressed on the edge of bass horn, make fixing of bass horn more reliable, bass horn is facing to caveli 142, the bass sent can carry out mixed once in caveli 142, then 141 to send through bass outlet, make the bass that sends more even.

As shown in Figures 2 and 3, in casing 1, be provided with voice guide device 15, the partial block 152 that described voice guide device 15 comprises body 151 and is located in body 151.Body 151 is in flat, before and after body 151, inwall is from bottom to top towards outer incline, body 151 has into sound mouth 153 and sound mouth 154, the left and right sides of partial block 152 is connected with body 151 inwall, between both sides and body 151, there is tone channel 155 before and after partial block 152, tone channel 155 with enter sound mouth 153 and sound mouth 154 communicates, sound mouth 154 communicates with through hole 133, the cross section of partial block 152 is prismatic, makes Zi entering sound mouth 153 identical to the path difference of sound mouth 154 through tone channel 155; Loudspeaker 2 is arranged on the lower end of voice guide device 15; Owing to being provided with partial block 152, identical to the path difference of sound mouth 154 through tone channel 155 certainly entering sound mouth 153, therefore, the phenomenon that high pitch there will not be superposition to offset in transmittance process, the loss of high pitch is little, and energy is high.

Enter sound mouth 153 in taper type, the lower end of partial block 152 is higher than entering sound mouth 153.This structure, when sound is after loudspeaker send, owing to entering sound mouth 153 in lower large little taper type, therefore, the phenomenon of assembling can occur at the upper end sound entering sound mouth 153, the sound in the lower end of partial block 152 through assembling is divided into multichannel and passes through tone channel, sound has carried out mixed once in accumulation process, like this, the sound be assigned in each tone channel can be more even, and that speaks is effective.

The lower end of body 151 has fixed head 156, for fixing loudspeaker 2, fixing of loudspeaker can be allowed more firm.

Claims

1. an audio amplifier voice guide device, it is characterized in that: comprise body and be located at the partial block in body, body has into sound mouth and sound mouth, has tone channel between partial block and body, tone channel with enter sound mouth and sound mouth communicates, identical to the path difference of sound mouth through tone channel certainly entering sound mouth.

2. audio amplifier voice guide device according to claim 1, is characterized in that: described partial block is prismatic.

3. audio amplifier voice guide device according to claim 2, it is characterized in that: described body is flat, before and after body, inwall is from bottom to top towards outer incline, and the left and right sides of partial block is connected with inboard wall of tube body.

4. audio amplifier voice guide device according to claim 1, is characterized in that: entering sound mouth is taper type, and the lower end of partial block is higher than entering sound mouth.