CN201230364Y - Sound gradually changing earphone - Google Patents
Sound gradually changing earphone Download PDFInfo
- Publication number
- CN201230364Y CN201230364Y CNU2007200882271U CN200720088227U CN201230364Y CN 201230364 Y CN201230364 Y CN 201230364Y CN U2007200882271 U CNU2007200882271 U CN U2007200882271U CN 200720088227 U CN200720088227 U CN 200720088227U CN 201230364 Y CN201230364 Y CN 201230364Y
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- CN
- China
- Prior art keywords
- sound
- gradual change
- lead
- plug
- jack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The utility model relates to an earphone which the voice can be gradually changed. The utility model is characterized in that the earphone comprises a voice gradual change device and an earphone device. The voice gradual change device comprises a plug (5), a varistor (11), a wire II (12), a plug jack (7) and a voice gradual change casing (6). The plug comprises an input pole I (8), an insulation rubber I (9) and an input pole II (10). The varistor comprises a zinc oxide crystal grain (18), a grain boundary layer (19), a container (20), an electrode (16) and a lead (17). The plug jack comprises an output pole I (14), an insulation rubber II (13) and an output pole II (15). The earphone device comprises a voice receiving joint (2), a wire I (3) and a loudspeaker. The utility model plays an important role for protecting the ear.
Description
Technical field
The utility model relates to a kind of earphone, is a kind of sound gradual change type earphone specifically.
Technical background
People listen to if use earphone immediately instead when sound is listened to broadcast receiver, MP3, walkman outside using, and our ear can be can not accept so big sound, even can shake and hinder our ear.For fear of the appearance of this problem, the utility model is connected sound gradual change device with earphone, constructs a kind of sound gradual change type earphone, and sound becomes greatly gradually in the time of can using earphone to listen to, and avoids our ear to be subjected to vibratory injury.
Summary of the invention
The purpose of this utility model provides a kind of sound gradual change type earphone.
A kind of sound gradual change type earphone, it is characterized in that it is made of sound gradual change device and Headphone device, described sound gradual change device is made of plug (5), piezo-resistance (11), second lead (12), jack (7), sound gradual change crust of the device (6), wherein plug (5), piezo-resistance (11), second lead (12), jack (7) place in the sound gradual change crust of the device (6), piezo-resistance (11) is connected with plug (5) by second lead (12) one ends, and the other end is connected with jack (7); Described plug is made of the first input utmost point (8), first electro-insulating rubber (9), the second input utmost point (10), and wherein first electro-insulating rubber (9) is embedded between the first input utmost point (8) and the second input utmost point (10); Described jack is made of first output stage (14), second electro-insulating rubber (13), second output stage (15), and wherein second electro-insulating rubber (13) is embedded between first output stage (14) and second output stage (15); Described Headphone device receives head (2), first lead (3), loud speaker (4) formation by sound, and wherein sound reception head (2) is connected with loud speaker (4) by first lead (3).
The beneficial effects of the utility model are: sound gradual change device is connected with earphone, has stoped that sound increases suddenly when listening to earphone, makes our ear avoid the injury that causes because of sound is excessive.
Description of drawings
Below in conjunction with description of drawings and embodiment further to the utility model explanation
Fig. 1 is the utility model front view
Fig. 2 is the utility model sound gradual change installation drawing
Fig. 3 is the utility model sound gradual change device cutaway view
Fig. 4 is the utility model piezo-resistance structural map
Fig. 5 is the utility model sound-producing device schematic diagram
Wherein 1-sound gradual change device, 2-sound receive head, 3-lead I, 4-loud speaker, 5-plug, 6-sound gradual change crust of the device, 7-jack, 8-input utmost point I, 9-electro-insulating rubber I, 10-input utmost point II, 11-piezo-resistance, 12-lead II, 13-electro-insulating rubber II, 14-output stage I, 15-output stage II, 16-electrode, 17-lead-in wire, 18-zinc oxide grain, 19-grain boundary layer, 20-container, 21-sound-producing device, 22-earphone jack.
Embodiment
At Fig. 1, Fig. 2, Fig. 3, among first embodiment shown in Figure 5, a kind of sound gradual change type earphone, it is characterized in that it is made of sound gradual change device and Headphone device, described sound gradual change device is by plug (5), piezo-resistance (11), lead II (12), jack (7), sound gradual change crust of the device (6) constitutes, wherein plug (5) is connected with earphone jack (22) on the sound-producing device (21), one among the lead II (12) directly is connected plug (5) with jack (7), another lead is connected in series a piezo-resistance (11), its two ends join with plug (5) and jack (7) respectively, and piezo-resistance (11) is alleviated the peak value of pulse signal electric current; Described plug is made of input utmost point I (8), electro-insulating rubber I (9), input utmost point II (10), and wherein electro-insulating rubber I (9) plays insulating effect between input utmost point I (8) and input utmost point II (10); Described jack is made of output stage I (14), electro-insulating rubber II (13), output stage II (15), and wherein electro-insulating rubber II (13) plays insulating effect between output stage I (14) and output stage II (15); Described Headphone device receives head (2), lead I (3), loud speaker (4) formation by sound, sound receives head (2) and is connected with the jack (7) of gradual change device, import the voice signal after the gradual change conversion into loud speaker (4) by lead I (3), make the loud speaker sounding.
In second embodiment shown in Figure 4, a kind of sound gradual change type earphone, it is characterized in that zinc oxide grain (18), grain boundary layer (19), container (20), electrode (16), lead-in wire (17) constitutes piezo-resistance, the resistivity of zinc oxide grain (18) is very low, and grain boundary layer (19) resistivity is very high, contacted two intergranules form a potential barrier, piezo-resistance (11) is born surge energy, when potential pulse passes through, after being connected to piezo-resistance (11), scabbled by the voltage peak waveform, be limited in certain amplitude, thereby limited the peak value of voice signal electric current.
Claims (2)
1. sound gradual change type earphone, it is characterized in that it is made of sound gradual change device and Headphone device, described sound gradual change device is made of plug (5), piezo-resistance (11), second lead (12), jack (7), sound gradual change crust of the device (6), wherein plug (5), piezo-resistance (11), second lead (12), jack (7) place in the sound gradual change crust of the device (6), piezo-resistance (11) is connected with plug (5) by second lead (12) one ends, and the other end is connected with jack (7); Described plug is made of the first input utmost point (8), first electro-insulating rubber (9), the second input utmost point (10), and wherein first electro-insulating rubber (9) is embedded between the first input utmost point (8) and the second input utmost point (10); Described jack is made of first output stage (14), second electro-insulating rubber (13), second output stage (15), and wherein second electro-insulating rubber (13) is embedded between first output stage (14) and second output stage (15); Described Headphone device receives head (2), first lead (3), loud speaker (4) formation by sound, and wherein sound reception head (2) is connected with loud speaker (4) by first lead (3).
2. a kind of sound gradual change type earphone according to claim 1, it is characterized in that described piezo-resistance is made of zinc oxide grain (18), grain boundary layer (19), container (20), electrode (16), lead-in wire (17), wherein zinc oxide grain (18) places in the container (20), between the zinc oxide grain (18) by grain boundary layer (19) at interval, electrode (16) places container (20) two ends, is connected with lead-in wire (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200882271U CN201230364Y (en) | 2007-11-16 | 2007-11-16 | Sound gradually changing earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200882271U CN201230364Y (en) | 2007-11-16 | 2007-11-16 | Sound gradually changing earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201230364Y true CN201230364Y (en) | 2009-04-29 |
Family
ID=40635303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200882271U Expired - Fee Related CN201230364Y (en) | 2007-11-16 | 2007-11-16 | Sound gradually changing earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201230364Y (en) |
-
2007
- 2007-11-16 CN CNU2007200882271U patent/CN201230364Y/en not_active Expired - Fee Related
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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: 20090429 Termination date: 20091216 |