CN2938616Y - Voice amplifier for telephone - Google Patents
Voice amplifier for telephone Download PDFInfo
- Publication number
- CN2938616Y CN2938616Y CN 200620034811 CN200620034811U CN2938616Y CN 2938616 Y CN2938616 Y CN 2938616Y CN 200620034811 CN200620034811 CN 200620034811 CN 200620034811 U CN200620034811 U CN 200620034811U CN 2938616 Y CN2938616 Y CN 2938616Y
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- CN
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- Prior art keywords
- amplifier
- junction box
- special
- receiver
- links
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model is a telephone voice amplifier in the art of communication equipment, comprising an amplifier main unit (1) and a special junction box (2), wherein the special junction box (2) is provided with a mouthpiece terminal (5), an earpiece terminal (6) and an amplifier terminal (7); the mouthpiece terminal (5) is connected to the listening and talking lines of the mouthpiece (3); the two ways (A1), (A2) of the listening line are divided into two branches, one branch is connected to an earpiece (4) via the earpiece terminal (6), and the other to the amplifier main unit (1) via the amplifier terminal (7); one way (B2) of the talking line is connected to the earpiece (4) via the earpiece terminal (6), and the other way (B1) to the amplifier main unit (1) via the amplifier terminal (7), then returns to the special junction box (2) and connected to the earpiece (4) via the earpiece terminal (6). The utility model is characterized by simple structure and ease of operation, and can improve telephone voice quality significantly and solve the howling problem without affecting the call function of the prior telephone or altering the internal circuits.
Description
Affiliated technical field: the utility model belongs to domain of communication equipment, is specifically related to a kind of call voice amplifier.
Background technology: in the prior art, plain old telephone all is to be made of phone and receiver, and its internal circuit mainly is made up of obedient circuit and speech circuit.Because fed distance is far away, a little less than the signal, existing phone usually occurs that In Call is little, and sound effect is poor, does not hear the situation of the other side's speech.
The utility model content:
The purpose of this utility model is little in order to overcome existing telephone relation volume, the defective of sound effect difference, for people provide a kind of simple in structure, easy to operate, do not influence the existing telephone call function, do not change the existing telephone internal circuit, just In Call can be amplified, improve call voice effect and volume significantly, and solve the call voice amplifier of clamoring and being problem.
The purpose of this utility model realizes by following technical proposals:
Call voice amplifier of the present utility model is made of amplifier main frame (1) and special-purpose junction box (2), special-purpose junction box (2) has phone end (5), receiver end (6) and (7) three terminals of amplifier end, phone end (5) links to each other with the speech circuit with the obedient circuit of phone (3), wherein, two-route wire (A1), (A2) in the obedient circuit are divided into two respectively in special-purpose junction box (2), one links to each other with receiver (4) through receiver end (6), and another links to each other with amplifier main frame (1) through amplifier end (7); Among the two-route wire (B1) of speech circuit, (B2), one tunnel (B2) links to each other with receiver (4) through receiver end (6), another road (B1) through amplifier end (7) with after amplifier main frame (1) links to each other, get back to special-purpose junction box (2) through amplifier end (7) again, and link to each other with receiver (4) through receiver end (6).
In the such scheme, amplifier main frame (1) is made of power amplifier module (8), loudspeaker (9), power module (10) and normally closed switch (11), wherein, power amplifier module (8) one ends link to each other with loudspeaker (9), and the obedient circuit in the amplifier end (7) of the other end and special-purpose junction box (2) links to each other; Speech circuit (B1) in the amplifier end (7) of normally closed switch (11) one ends and special-purpose junction box (2) links to each other, the other end is got back to special-purpose junction box (2) through the amplifier end (7) of special-purpose junction box (2), and links to each other with receiver (4) through the receiver end (6) of special-purpose junction box (2); Power module (10) is powered to power amplifier module (8); Normally closed switch (11) is controlled with the mains switch interlock of amplifier main frame (1), and when mains switch disconnected, normally closed switch (11) was in closure state, and normally closed switch during power connection (11) disconnects.
The call voice amplifier course of work of the present utility model is as follows: behind closing of the circuit, open the mains switch of amplifier main frame (1), normally closed switch (11) disconnects; The signal that the other side is transmitted passes special-purpose junction box (2) through phone (3), be divided into two again, biography is advanced the loudspeaker in the receiver (4), another power amplifier module through amplifier main frame (1) (8) passes loudspeaker (9), and In Call is amplified, and improves call voice effect and volume significantly, and, because normally closed switch (11) disconnects, and has cut off the speech circuit, thereby having prevented to clamor is problem; When one's own side talks, cut off the mains switch of amplifier main frame (1), normally closed switch (11) is in closure state, and the microphone of signal in receiver (4) passes into special-purpose junction box (2), and often make and break is closed (11) and is passed phone (3) again, and is transported to the other side.
Therefore, call voice amplifier architecture of the present utility model is simple, easy to operate, do not influence the existing telephone call function, do not change the existing telephone internal circuit, just In Call can be amplified, improve call voice effect and volume significantly, and solved to clamor and be problem.
Further specify the utility model below by embodiment, the utility model is not limited only to described embodiment.
Description of drawings:
Fig. 1 is the connection diagram of the utility model and phone and receiver.
Fig. 2 is the schematic diagram of special-purpose junction box of the present utility model.
Fig. 3 is an amplifier main frame schematic diagram of the present utility model.
Among the figure: 1 is the amplifier main frame; 2 is special-purpose junction box; 3 is phone; 4 is receiver; 5 is the phone end of special-purpose junction box; 6 is the receiver end of special-purpose junction box; 7 is the amplifier end of special-purpose junction box; 8 is power amplifier module; 9 is loudspeaker; 10 is power module; 11 is normally closed switch.
Embodiment:
Embodiment one
As Fig. 1, Fig. 2 and shown in Figure 3, the call voice amplifier of present embodiment is made of amplifier main frame (1) and special-purpose junction box (2), special-purpose junction box (2) has phone end (5), receiver end (6) and (7) three terminals of amplifier end, phone end (5) links to each other with the speech circuit with the obedient circuit of phone (3), wherein, two-route wire (A1), (A2) in the obedient circuit are divided into two respectively in special-purpose junction box (2), one links to each other with receiver (4) through receiver end (6), and another links to each other with amplifier main frame (1) through amplifier end (7); Among the two-route wire (B1) of speech circuit, (B2), one tunnel (B2) links to each other with receiver (4) through receiver end (6), another road (B1) through amplifier end (7) with after amplifier main frame (1) links to each other, get back to special-purpose junction box (2) through amplifier end (7) again, and link to each other with receiver (4) through receiver end (6).
Amplifier main frame (1) is made of power amplifier module (8) (model is LM386), loudspeaker (9) (model is 2W-4 Ω), power module (10) (model is AC220-DC11) and normally closed switch (11) (model is DPDT), wherein, power amplifier module (8) one ends link to each other with loudspeaker (9), and the obedient circuit in the amplifier end (7) of the other end and special-purpose junction box (2) links to each other; Speech circuit (B1) in the amplifier end (7) of normally closed switch (11) one ends and special-purpose junction box (2) links to each other, the other end is got back to special-purpose junction box (2) through the amplifier end (7) of special-purpose junction box (2), and links to each other with receiver (4) through the receiver end (6) of special-purpose junction box (2); Power module (10) is powered to power amplifier module (8); Normally closed switch (11) is controlled with the mains switch interlock of amplifier main frame (1), and when mains switch disconnected, normally closed switch (11) was in closure state, and normally closed switch during power connection (11) disconnects.
Claims (2)
1. call voice amplifier, it is characterized in that constituting by amplifier main frame (1) and special-purpose junction box (2), special-purpose junction box (2) has phone end (5), receiver end (6) and (7) three terminals of amplifier end, phone end (5) links to each other with the speech circuit with the obedient circuit of phone (3), wherein, two-route wire (A1), (A2) in the obedient circuit are divided into two respectively in special-purpose junction box (2), one links to each other with receiver (4) through receiver end (6), and another links to each other with amplifier main frame (1) through amplifier end (7); Among the two-route wire (B1) of speech circuit, (B2), one tunnel (B2) links to each other with receiver (4) through receiver end (6), another road (B1) through amplifier end (7) with after amplifier main frame (1) links to each other, get back to special-purpose junction box (2) through amplifier end (7) again, and link to each other with receiver (4) through receiver end (6).
2. call voice amplifier according to claim 1, it is characterized in that amplifier main frame (1) is made of power amplifier module (8), loudspeaker (9), power module (10) and normally closed switch (11), wherein, power amplifier module (8) one ends link to each other with loudspeaker (9), and the obedient circuit in the amplifier end (7) of the other end and special-purpose junction box (2) links to each other; Speech circuit (B1) in the amplifier end (7) of normally closed switch (11) one ends and special-purpose junction box (2) links to each other, the other end is got back to special-purpose junction box (2) through the amplifier end (7) of special-purpose junction box (2), and links to each other with receiver (4) through the receiver end (6) of special-purpose junction box (2); Power module (10) is powered to power amplifier module (8); Normally closed switch (11) is controlled with the mains switch interlock of amplifier main frame (1), and when mains switch disconnected, normally closed switch (11) was in closure state, and normally closed switch during power connection (11) disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034811 CN2938616Y (en) | 2006-07-04 | 2006-07-04 | Voice amplifier for telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034811 CN2938616Y (en) | 2006-07-04 | 2006-07-04 | Voice amplifier for telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938616Y true CN2938616Y (en) | 2007-08-22 |
Family
ID=38362645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620034811 Expired - Fee Related CN2938616Y (en) | 2006-07-04 | 2006-07-04 | Voice amplifier for telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2938616Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478588A (en) * | 2008-11-14 | 2009-07-08 | 盛韦 | Intelligent telephone amplifier for eliminating feedback whistle, and suppressing interference noise |
-
2006
- 2006-07-04 CN CN 200620034811 patent/CN2938616Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478588A (en) * | 2008-11-14 | 2009-07-08 | 盛韦 | Intelligent telephone amplifier for eliminating feedback whistle, and suppressing interference noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 |