CN204948301U - Earphone - Google Patents
Earphone Download PDFInfo
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- CN204948301U CN204948301U CN201520598728.9U CN201520598728U CN204948301U CN 204948301 U CN204948301 U CN 204948301U CN 201520598728 U CN201520598728 U CN 201520598728U CN 204948301 U CN204948301 U CN 204948301U
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- loudspeaker
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Abstract
The utility model relates to a kind of earphone, comprises audio frequency incoming end and the first loudspeaker, and described audio frequency incoming end is provided with grounding pin and the first pin for inputting the first sound channel signal; The first bass regulon of the bass signal for regulating described first sound channel signal is provided with between the first end of described first loudspeaker and described first pin; Described first bass regulon comprises the first branch selector and first and regulates branch road; Described first regulates branch road to comprise the short circuit branch of direct-connected wire and the series arm of at least one electric capacity; Described first branch selector selects described first to regulate branch road, regulates the bass signal of the first sound channel; Second end of described first loudspeaker is connected with described grounding pin.Add bass regulon in described earphone, unrestricted choice control can be carried out by described bass regulon to audio signal, reach the object regulating bass.
Description
Technical field
The utility model relates to field of audio devices, particularly earphone.
Background technology
Along with the progress of science and technology, the popularization degree of Mobile audio frequency equipment is more and more higher, and earphone plays a part very important as Mobile audio frequency output device in people's life.
But the bass effect of present most of earphone is all debugged, be fixing bass patterns, free adjustment control can not be carried out according to user preferences to bass effect.
Utility model content
Based on this, be necessary to provide a kind of earphone that can carry out free adjustment control according to user preferences to bass effect.
A kind of earphone, comprise audio frequency incoming end and the first loudspeaker, described audio frequency incoming end is provided with grounding pin and the first pin for inputting the first sound channel signal; The first bass regulon of the bass signal for regulating described first sound channel signal is provided with between the first end of described first loudspeaker and described first pin; Described first bass regulon comprises the first branch selector and first and regulates branch road; Described first regulates branch road to comprise the short circuit branch of direct-connected wire and the series arm of at least one electric capacity; Described first branch selector selects described first to regulate branch road, regulates the bass signal of the first sound channel; Second end of described first loudspeaker is connected with described grounding pin.
Wherein in an embodiment, also comprise the second loudspeaker, described audio frequency incoming end also comprises the second pin for inputting second sound channel signal; The second bass regulon of the bass signal for regulating described second sound channel signal is provided with between the first end of described second loudspeaker and described second pin; Described second bass regulon comprises the second branch selector and second and regulates branch road; Described second regulates branch road to comprise the short circuit branch of direct-connected wire and the series arm of at least one electric capacity; Described second branch selector selects described second to regulate branch road, and regulate the bass signal of second sound channel signal, the second end of described second loudspeaker is connected with described grounding pin.
Wherein in an embodiment, described first branch selector and the second branch selector comprise at least one by-pass cock respectively, described by-pass cock comprises at least one moved end and at least two selecting sides, described moved end is connected with described first pin or the second pin respectively, and described at least two selecting sides are connected with the described short circuit branch of direct-connected wire and the series arm of at least one electric capacity respectively.
Wherein in an embodiment, described first regulates branch road to comprise the first short circuit branch of a direct-connected wire and the series arm of the first electric capacity, and described second regulates branch road to comprise the second short circuit branch of a direct-connected wire and the series arm of the second electric capacity; Described first branch selector comprises the first by-pass cock; Described second branch selector comprises the second by-pass cock, and described first by-pass cock and the second by-pass cock include a moved end and a selecting side; The first end of described first electric capacity is connected with described first pin, and the second end of described first electric capacity is connected with described first loudspeaker, forms the series arm of the first electric capacity; The first end of described second electric capacity is connected with described second pin, and the second end of described second electric capacity is connected with described second loudspeaker, forms the series arm of the second electric capacity; Described first by-pass cock is connected with described first pin and described second pin respectively with the moved end of the second by-pass cock, described first by-pass cock is connected with described first loudspeaker and described second loudspeaker respectively with the selecting side of the second by-pass cock, forms the first short circuit branch and second short circuit branch of direct-connected wire respectively.
Wherein in an embodiment, described first regulates branch road to comprise the series arm of the first short circuit branch of direct-connected wire, the series arm of the first electric capacity and the second electric capacity; Described second regulates branch road to comprise the series arm of the second short circuit branch of direct-connected wire, the series arm of the 3rd electric capacity and the 4th electric capacity; Described first branch selector comprises the first by-pass cock, and described first by-pass cock comprises the first moved end, the first selecting side and the second selecting side; Described second branch selector comprises the second by-pass cock, and described second by-pass cock comprises the second moved end, the 3rd selecting side and the 4th selecting side; First moved end of described first by-pass cock is connected with described first pin; The first end of described first electric capacity is connected with described first pin, and the second end of described first electric capacity is connected with described first loudspeaker, forms the series arm of the first electric capacity; The first end of described second electric capacity is connected with the second selecting side of described first by-pass cock, and the second end of described second electric capacity is connected with described first loudspeaker, forms the series arm of the second electric capacity; Second moved end of described second by-pass cock is connected with described second pin; The first end of described 3rd electric capacity is connected with described 3rd selecting side, and the second end of described 3rd electric capacity is connected with described second loudspeaker, forms the series arm of the 3rd electric capacity; The first end of described 4th electric capacity is connected with described second pin, and the second end of described 4th electric capacity is connected with described second loudspeaker, forms the series arm of the 4th electric capacity; First selecting side of described first by-pass cock is connected with described first loudspeaker, forms the first short circuit branch of direct-connected wire; 4th selecting side of described second by-pass cock is connected with described second loudspeaker, forms the second short circuit branch of direct-connected wire.
Wherein in an embodiment, the two ends of described first electric capacity and/or the second electric capacity are also parallel with resistance respectively.
Wherein in an embodiment, the two ends of described first electric capacity, the second electric capacity, the 3rd electric capacity and/or the 4th electric capacity are also parallel with resistance respectively.
Above-mentioned earphone adds bass regulon, can select different adjustment branch roads by the branch selector of described bass regulon, needs the bass effect needed for adjustment to reach the object regulating bass according to user.
Accompanying drawing explanation
Fig. 1 is earphone signal transmission circuit figure;
Fig. 2 is earphone first channel signal path figure;
Fig. 3 is the earphone schematic diagram that an embodiment comprises bass regulon;
Fig. 4 is the earphone schematic diagram that an embodiment comprises bass regulon;
Fig. 5 is the earphone schematic diagram that an embodiment comprises bass regulon;
Fig. 6 is the earphone schematic diagram that an embodiment comprises bass regulon;
Fig. 7 is the earphone schematic diagram that an embodiment comprises bass regulon;
Fig. 8 is the earphone schematic diagram that an embodiment comprises bass regulon;
Fig. 9 is the earphone schematic diagram that an embodiment comprises bass regulon.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, earphone is described more fully.The first-selected embodiment of earphone is given in accompanying drawing.But earphone can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the disclosure of earphone more comprehensively thorough.
The audio signal input end of earphone is located at the inserting foot place of earphone cord tail end usually.Earphone signal transmission circuit figure as shown in Figure 1, when at least comprising audio output function, this inserting foot generally at least comprises the pin of 3 mutually insulateds: the first sound channel signal pins SL, second sound channel signal pins SR and ground signalling pin SG.
For earphone first loudspeaker SPK-1, its second end and first end are connected to ground signalling pin SG and the first sound channel signal pins SL by wire respectively; For earphone second loudspeaker SPK-2, its second end and first end are connected to ground signalling pin SG and second sound channel signal pins SR by wire respectively.
Traditional earphone not possessing bass tuning function, the first sound channel signal and second sound channel signal directly enter the first loudspeaker and the second loudspeaker from audio signal input end.It is below the earphone of an embodiment, in the signal path of the first sound channel signal pins SL to earphone first loudspeaker SPK-1, with in the signal path of second sound channel signal pins SR to earphone second loudspeaker SPK-2, add bass regulon, reach the object regulating bass.
The bass of the first sound channel signal and second sound channel signal regulates process substantially identical, and following examples are described with the process of wherein the first sound channel signal.
Be illustrated in figure 2 in earphone first channel signal path figure, in the signal path of the first sound channel signal pins SL to earphone first loudspeaker SPK-1, add bass regulon, thus reach the object regulating bass.
Be illustrated in figure 3 the earphone schematic diagram that an embodiment comprises bass regulon,
For earphone first loudspeaker SPK-1, between the first end of its loudspeaker and described first pin SL, be provided with the first bass regulon of the bass signal for regulating the first sound channel signal; First bass regulon comprises the first branch selector and first and regulates branch road; First branch selector selects first to regulate branch road, regulates the bass signal of the first sound channel; Second end of the first loudspeaker SPK-1 is connected SG with grounding pin.
First bass regulon comprises the first branch selector and first and regulates branch road; First branch selector comprises the first by-pass cock S1, and the first by-pass cock S1 is single-pole single-throw switch (SPST), i.e. the control respectively of the first loudspeaker and the second loudspeaker, and first regulates branch road to comprise the short circuit branch of direct-connected wire and the series arm of the first electric capacity C1.
The first end of the first electric capacity C1 is connected with the first sound channel signal pins SL, and second end of the first electric capacity C1 is connected with the first end of loudspeaker, forms the series arm of the first electric capacity.
The moved end SW1 of the first by-pass cock S1 is connected with the first sound channel signal pins SL, and the first selecting side SW1-1 of the first by-pass cock S1 is connected with the first end of loudspeaker, forms the short circuit branch of direct-connected wire.
When the first by-pass cock S1 connects the first selecting side SW1-1, the loop short circuit at the first electric capacity C1 place can be made, thus audio signal directly arrives the first loudspeaker place, is in normal bass regime, namely non-adjustment state.
When the first by-pass cock S1 is unsettled, the first electric capacity C1 is in circuit, is in one-level bass strengthened condition.
In the present embodiment, the electric capacity of the first electric capacity C1 is 20nf, and the resistance of the first resistance is 200k ohm.
Be illustrated in figure 4 the earphone schematic diagram that an embodiment comprises bass regulon, the the first resistance R1 of the first electric capacity C1 place parallel connection in branch road is regulated at first of bass regulon, the first resistance R1 due to parallel connection, the first electric capacity C1 will be accelerated discharge, voltage can be avoided to raise suddenly and the noise caused.
Be illustrated in figure 5 the earphone schematic diagram that an embodiment comprises bass regulon, the first bass regulon comprises the first branch selector and first and regulates branch road; First branch selector comprises the first by-pass cock S1; First by-pass cock S1 is single-pole double-throw switch (SPDT), i.e. the control respectively of the first loudspeaker and the second loudspeaker; First regulates branch road to comprise the series arm of the short circuit branch of direct-connected wire, the series arm of the first electric capacity C1 and the second electric capacity C2.
The first end of the first electric capacity C1 is connected with the first sound channel signal pins SL, and second end of the first electric capacity C1 is connected with the first end of loudspeaker, forms the series arm of the first electric capacity;
The moved end SW1 of the first by-pass cock S1 is connected with the first sound channel signal pins SL, and the first selecting side SW1-1 of the first by-pass cock S1 is connected with the first end of loudspeaker, forms the short circuit branch of direct-connected wire;
The second selecting side SW1-2 of the first by-pass cock S1 is connected with the first end of the second electric capacity C2, and second end of the second electric capacity C2 is connected with the first end of loudspeaker, forms the series arm of the second electric capacity.
Regulate in branch road, the first electric capacity C1, the second electric capacity C2, capacitance equal, C1=C2=20nf in the present embodiment.
As the connection first selecting side SW1-1 of the first by-pass cock S1, the loop short circuit at the first electric capacity C1 place can be made, thus audio signal directly arrives loudspeaker place, is in normal bass regime, namely non-adjustment state.
When the first by-pass cock S1 is unsettled, the first electric capacity C1 is in circuit, i.e. C=C1=20nf, is in bass one-level strengthened condition.
When the first by-pass cock S1 connects the second selecting side SW1-2, the first electric capacity C1 and the second electric capacity C2 are in parallel, and that now total in loop electric capacity equals the first electric capacity and the second electric capacity and value, i.e. C=C1+C2=40nf, be in bass secondary strengthened condition.
In another embodiment, according to the required bass effect reached, the capacitance of the first electric capacity C1 and the second electric capacity C2 can not wait, and capacitance also can be that the large I of its capacitance such as 5nf, 10nf, 15nf or 30nf regulates according to concrete demand.
In another embodiment, also at the first electric capacity and/or the second electric capacity place corresponding first resistance in parallel and the second resistance, the speed of the first electric capacity and the second capacitor discharge can will be accelerated like this, thus the noise caused when avoiding voltage to raise.
Being illustrated in figure 6 the earphone schematic diagram that an embodiment comprises bass regulon, between the first end of the first loudspeaker SPK-1 and the first pin SL, being provided with the first bass regulon of the bass signal for regulating described first sound channel signal; Second end of the first loudspeaker SPK-1 is connected with grounding pin SG; Be provided with the second bass regulon of the bass signal for regulating second sound channel signal between the first end of the second loudspeaker SPK-2 and the second pin SR, second end of the second loudspeaker SPK-2 is connected with grounding pin SG.
First bass regulon comprises the first by-pass cock and first and regulates branch road; Second bass regulon comprises the second by-pass cock and second and regulates branch road.First by-pass cock comprises the first moved end SW1, the first selecting side SW1-1 and the second selecting side SW1-2, and described second by-pass cock comprises the second moved end SW2, the 3rd selecting side SW2-1 and the 4th selecting side SW2-2.
First regulates branch road to comprise the first electric capacity C1, the second electric capacity C2 and the first resistance R1,
The first end of the first electric capacity C1 is connected with the first sound channel signal pins SL, and second end of the first electric capacity C1 is connected with the first end of the first loudspeaker, forms the series circuit of the first electric capacity; The first moved end SW1 of the first by-pass cock S1 is connected with the first sound channel signal pins SL, and the first selecting side SW1-1 is connected with the first end of the first loudspeaker, forms the first short circuit branch of direct-connected wire; The second selecting side SW1-2 of the first by-pass cock S1 is connected with the first end of the second electric capacity C2, and second end of the second electric capacity C2 is connected with the first end of the first loudspeaker, forms the series arm of the second electric capacity; First resistance R1 is in parallel with the first electric capacity C1.
Second regulates branch road to comprise the 3rd electric capacity C3, the 4th electric capacity C4 and the second resistance R2;
The second moved end SW2 of the first by-pass cock S1 is connected with second sound channel signal pins SG, and the 3rd selecting side SW2-1 is connected with the first end of the 3rd electric capacity C3, and second end of the 3rd electric capacity C3 is connected with the first end of the second loudspeaker, forms the series arm of the 3rd electric capacity; 4th selecting side SW2-2 is connected with the first end of the second loudspeaker, forms the second short circuit branch of direct-connected wire; The first end of the 4th electric capacity C4 is connected with second sound channel signal pins SG, and second end of the 4th electric capacity C4 is connected with the first end of the second loudspeaker, and form the series arm of the 4th electric capacity, the second resistance R2 is in parallel with the 4th electric capacity C4.
First electric capacity C1, the second electric capacity C1, the 3rd electric capacity C1 are all identical with the capacitance of the 4th electric capacity C1, and capacitance is 20uf.
The resistance value of the first resistance R1, the second resistance R2 is also equal, is 100K ohm.
In the present embodiment, the first by-pass cock S1 is double-point double-throw switch S1, as shown in Figure 6:
When the first by-pass cock S1 is unsettled, the first moved end SW1 and the second moved end unsettled, SW2 first electric capacity C1, the 4th electric capacity C4 are in circuit, are in bass one-level strengthened condition, can regulate the bass effect of the first loudspeaker, the second loudspeaker simultaneously.
When the first selecting side SW1-1 and the 4th selecting side SW2-2 connected by the first by-pass cock S1 i.e. double-point double-throw switch, the first electric capacity C1 and the 4th electric capacity C4 short circuit can be made, form short circuit branch, be in normal bass regime.
When the second selecting side SW1-2 and the 3rd selecting side SW2-1 connected by the first by-pass cock S1 i.e. double-point double-throw switch, in formed loop, first electric capacity C1 is in parallel with the second electric capacity C2,3rd electric capacity C3 and the 4th Capacitance parallel connection C4, be in bass secondary strengthened condition, the bass stiffening effect of the first loudspeaker, the second loudspeaker can be strengthened simultaneously.So just only need setting by-pass cock just can regulate the bass effect of first, second loudspeaker simultaneously.
In other embodiments, the first by-pass cock S1 and the second by-pass cock S2 is respectively single-pole double-throw switch (SPDT):
When the first moved end SW1 and the second moved end SW2 is unsettled respectively, the first electric capacity C1, the 4th electric capacity C4 are in circuit, are in bass one-level strengthened condition, can regulate the bass effect of the first loudspeaker, the second loudspeaker respectively.
When the first moved end SW1 and the second moved end SW2 connects the first selecting side SW1-1 the 4th selecting side SW2-2 respectively, the first electric capacity C1 and the 4th electric capacity C4 short circuit can be made, form short circuit branch, be in normal bass regime respectively.
When the first moved end SW1 and the second moved end SW2 connects the second selecting side SW1-2 the 3rd selecting side SW2-1 respectively, in formed loop, first electric capacity C1 is in parallel with the second electric capacity C2,3rd electric capacity C3 and the 4th Capacitance parallel connection C4, be in bass secondary strengthened condition, strengthen the bass stiffening effect of the first loudspeaker, the second loudspeaker respectively.
In another embodiment, the two ends of the first electric capacity, the second electric capacity, the 3rd electric capacity and/or the 4th electric capacity are also parallel with resistance respectively.
Be illustrated in figure 7 the earphone schematic diagram that an embodiment comprises bass regulon, described first bass regulon comprises the first branch selector, first and regulates branch road.
First regulates branch road to comprise the first electric capacity C1, the first resistance R1, the second electric capacity C2 and the 3rd electric capacity C3.Branch selector comprises the first by-pass cock S1 and the second by-pass cock S2, and described first by-pass cock S1, the second by-pass cock S2 are equal single-pole double-throw switch (SPDT), and the first by-pass cock S1 is in parallel with the second by-pass cock S2.
The first end of the first electric capacity C1 is connected with the first sound channel signal pins SL, and second end of the first electric capacity C1 is connected with the first end of loudspeaker, and the first resistance R1 is in parallel with described first electric capacity C1, forms the series arm of the first electric capacity;
First by-pass cock S1 and the second by-pass cock S2 is in parallel, forms the first moved end SW1, the second moved end SW2, the first selecting side SW1-1, the second selecting side SW1-2 and the 3rd selecting side SW2-2;
First moved end SW1 is connected with the first sound channel signal pins SL with the second moved end SW2;
First selecting side SW1-1 is connected with the first end of loudspeaker, forms the short circuit branch of direct-connected wire;
Second selecting side SW1-2 is connected with the first end of the second electric capacity C2, and second end of the second electric capacity C2 is connected with the first end of loudspeaker, forms the series arm of the second electric capacity;
3rd selecting side SW2-2 is connected with the first end of the 3rd electric capacity C3, and second end of the 3rd electric capacity C3 is connected with the first end of loudspeaker, forms the series arm of the 3rd electric capacity.
As the connection first selecting side SW1-1 of the first by-pass cock S1, the loop short circuit at the first electric capacity C1 place can be made, thus audio signal directly arrives loudspeaker place, is in normal bass regime, namely non-adjustment state.
When the first by-pass cock S1 is unsettled, the first electric capacity C1 is in circuit, is in bass one-level strengthened condition.
When the first by-pass cock S1 connects the second selecting side SW1-2, the first electric capacity C1 and the second electric capacity C2 are in parallel, and that now total in loop electric capacity equals the first electric capacity and the second electric capacity and value, i.e. C=C1+C2, be in bass secondary state.
When the first by-pass cock S1 and the second by-pass cock S2 connects the second selecting side SW1-2 and the 3rd selecting side SW2-2 simultaneously, first electric capacity C1, the second electric capacity C2 and the 3rd electric capacity C3 are in parallel, now total in loop electric capacity equal the first electric capacity C1, the second electric capacity C2 and the 3rd electric capacity C3's and value, i.e. C=C1+C2+C3, is in bass three grades of strengthened conditions.In the present embodiment, the capacitance of the first electric capacity C1, the second electric capacity C2 and the 3rd electric capacity C3 can control the size of each capacitance according to the demand of side circuit.
In another embodiment, all resistance can be comprised, resistance and Capacitance parallel connection in the series arm of the series arm of the first electric capacity, the series arm of the second electric capacity, the 3rd electric capacity.
In another embodiment, two single-pole double throw by-pass cockes of branch selector can be replaced with a double-point double-throw switch by-pass cock.
Be illustrated in figure 8 the earphone schematic diagram that an embodiment comprises bass regulon, the first bass regulon comprises the first branch selector and first and regulates branch road.First regulates branch road to comprise the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3 and the 4th electric capacity C4; First branch selector comprises the first by-pass cock S1, and the first by-pass cock S1 is slide switch, and the first by-pass cock S1 comprises moved end SW1 and the first selecting side SW1-1, the second selecting side SW1-2, the 3rd selecting side SW1-3 and the 4th selecting side SW1-4.
The first end of the first electric capacity C1 is connected with the first sound channel signal pins SL, and second end of the first electric capacity C1 is connected with the first end of loudspeaker, forms the series circuit of the first electric capacity; The first selecting side SW1-1 of the first by-pass cock S1 is connected with the first sound channel signal pins SL, forms the short circuit branch of direct-connected wire; The second selecting side SW1-2 of the first by-pass cock S1 is connected with the first end of the second electric capacity C2, and second end of the second electric capacity C2 is connected with the first end of loudspeaker, forms the series arm of the second electric capacity; 3rd selecting side SW1-3 is connected with the first end of the 3rd electric capacity C3, and second end of the 3rd electric capacity C3 is connected with the first end of loudspeaker, forms the series arm of the 3rd electric capacity; 4th selecting side SW1-4 is connected with the first end of the 4th electric capacity C4, and second end of the 4th electric capacity C4 is connected with the first end of loudspeaker, forms the series arm of the 4th electric capacity.
Regulate in branch road, the capacitance of the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3 and the 4th electric capacity C4 is all unequal, can set the capacitance of electric capacity according to real needs.C1=20nf in the present embodiment; C2=60nf; C3=100nf; C4=120nf.
As the connection first selecting side SW1-1 of the first by-pass cock S1, the loop short circuit at the first electric capacity C1 place can be made, thus audio signal directly arrives loudspeaker place, is in normal bass regime, namely non-adjustment state.
When the first by-pass cock S1 is unsettled, the first electric capacity C1 is in circuit, is in bass one-level strengthened condition, i.e. C=C1=20nf.
When the first by-pass cock S1 connects the second selecting side SW1-2, the first electric capacity C1 and the second electric capacity C2 are in parallel, and that now total in loop electric capacity equals the first electric capacity and the second electric capacity and value, i.e. C=C1+C2=80nf, be in bass secondary strengthened condition.
When the first by-pass cock S1 connects the second selecting side SW1-3, the first electric capacity C1 and the second electric capacity C3 are in parallel, and that now total in loop electric capacity equals the first electric capacity and the second electric capacity and value, i.e. C=C1+C3=120nf, be in bass secondary strengthened condition.
When the first by-pass cock S1 connects the second selecting side SW1-4, the first electric capacity C1 and the second electric capacity C4 are in parallel, and that now total in loop electric capacity equals the first electric capacity and the second electric capacity and value, i.e. C=C1+C4=140nf, be in bass secondary strengthened condition.
When different selecting sides selected by the first by-pass cock, the capacitance in loop is also just different, will produce the effect that different basses is strengthened like this, and different basses can be selected according to demand to regulate branch road.
In another embodiment, bass regulon also comprises the first resistance, the second resistance, the 3rd resistance and the 4th resistance, described first resistance and the first Capacitance parallel connection; Second resistance and the second Capacitance parallel connection; 3rd resistance and the 3rd Capacitance parallel connection; 4th resistance and the 4th Capacitance parallel connection.The resistance value of described first resistance, the second resistance, the 3rd resistance and the 4th resistance can regulate according to the actual requirements.
Be illustrated in figure 9 the earphone schematic diagram that an embodiment comprises bass regulon, bass regulating circuit comprises branch selector and regulates branch road, branch selector comprises multiple by-pass cock, parallel with one another between multiple by-pass cock, at least one in by-pass cock single-pole double-throw switch (SPDT) and double-point double-throw switch.Branch road is regulated to comprise n electric capacity and the first resistance.
In figure, the branch selector that multiple by-pass cock is formed has (n-1) individual moved end and n selecting side, the moved end SW [1 of branch selector, 2, (n-1)] be connected with the first sound channel signal pins SL, the first selecting side of branch selector is connected with the first end of loudspeaker, forms the short circuit branch of direct-connected wire;
The first end of the first electric capacity C1 is connected with the first sound channel signal pins SL, and second end of the first electric capacity C1 is connected with the first end of loudspeaker, and the first resistance R1 is in parallel with described first electric capacity C1, forms the series arm of the first electric capacity;
Second moved end of the first branch selector is connected with the first end of the second electric capacity C2, and second end of the second electric capacity C2 is connected with the first end of loudspeaker, forms the series arm of the second electric capacity;
By that analogy, connect to the first end of the n-th electric capacity with the 3rd electric capacity in the n-th selecting side of branch selector, the second end of the n-th electric capacity is connected with the first end of loudspeaker, forms the series arm of the n-th electric capacity.
When corresponding selecting side connected by by-pass cock, just corresponding loop can be formed, such as, when selecting side SW1-1, SW1-2, SW (n-1)-1 and SW (n-1)-2 connected by by-pass cock simultaneously, in circuit, C1, C2, C3, C (n-1), Cn are relation in parallel, total capacitance C=C1+C2+C3+C (n-1)+Cn, by changing the capacitance in circuit, reach the effect regulating audio bass.
In adjustment branch road, the capacitance of each electric capacity is changeable, can equally also can not think, can set capacitance and the number of each electric capacity as the case may be.If bass regulates resistance in parallel in branch road, so institute's parallel connection resistance value of entering is also changeable, and can equally can not wait, be also the size and the number that regulate its resistance value according to concrete circuit requirements.
In another embodiment, first sound channel signal regulates process substantially identical with the bass of second sound channel signal, the bass regulon of first, second sound channel can combine use, namely first, second signal path can be connected by the branch selector of described bass regulon, that is can connect the first secondary signal path by double-point double-throw switch simultaneously, control the bass stiffening effect of first, second loudspeaker simultaneously.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. an earphone, comprises audio frequency incoming end and the first loudspeaker, and described audio frequency incoming end is provided with grounding pin and the first pin for inputting the first sound channel signal;
It is characterized in that, between the first end of described first loudspeaker and described first pin, being provided with the first bass regulon of the bass signal for regulating described first sound channel signal; Described first bass regulon comprises the first branch selector and first and regulates branch road; Described first regulates branch road to comprise the short circuit branch of direct-connected wire and the series arm of at least one electric capacity; Described first branch selector selects described first to regulate branch road, regulates the bass signal of the first sound channel; Second end of described first loudspeaker is connected with described grounding pin.
2. earphone according to claim 1, is characterized in that, also comprises the second loudspeaker, and described audio frequency incoming end also comprises the second pin for inputting second sound channel signal;
The second bass regulon of the bass signal for regulating described second sound channel signal is provided with between the first end of described second loudspeaker and described second pin; Described second bass regulon comprises the second branch selector and second and regulates branch road; Described second regulates branch road to comprise the short circuit branch of direct-connected wire and the series arm of at least one electric capacity; Described second branch selector selects described second to regulate branch road, and regulate the bass signal of second sound channel signal, the second end of described second loudspeaker is connected with described grounding pin.
3. earphone according to claim 2, it is characterized in that, described first branch selector and the second branch selector comprise at least one by-pass cock respectively, described by-pass cock comprises at least one moved end and at least two selecting sides, described moved end is connected with described first pin or the second pin respectively, and described at least two selecting sides are connected with the described short circuit branch of direct-connected wire and the series arm of at least one electric capacity respectively.
4. earphone according to claim 3, it is characterized in that, described first regulates branch road to comprise the first short circuit branch of a direct-connected wire and the series arm of the first electric capacity, and described second regulates branch road to comprise the second short circuit branch of a direct-connected wire and the series arm of the second electric capacity; Described first branch selector comprises the first by-pass cock; Described second branch selector comprises the second by-pass cock, and described first by-pass cock and the second by-pass cock include a moved end and a selecting side;
The first end of described first electric capacity is connected with described first pin, and the second end of described first electric capacity is connected with described first loudspeaker, forms the series arm of the first electric capacity;
The first end of described second electric capacity is connected with described second pin, and the second end of described second electric capacity is connected with described second loudspeaker, forms the series arm of the second electric capacity;
Described first by-pass cock is connected with described first pin and described second pin respectively with the moved end of the second by-pass cock, described first by-pass cock is connected with described first loudspeaker and described second loudspeaker respectively with the selecting side of the second by-pass cock, forms the first short circuit branch and second short circuit branch of direct-connected wire respectively.
5. earphone according to claim 3, is characterized in that, described first regulates branch road to comprise the series arm of the first short circuit branch of direct-connected wire, the series arm of the first electric capacity and the second electric capacity; Described second regulates branch road to comprise the series arm of the second short circuit branch of direct-connected wire, the series arm of the 3rd electric capacity and the 4th electric capacity;
Described first branch selector comprises the first by-pass cock, and described first by-pass cock comprises the first moved end, the first selecting side and the second selecting side; Described second branch selector comprises the second by-pass cock, and described second by-pass cock comprises the second moved end, the 3rd selecting side and the 4th selecting side;
First moved end of described first by-pass cock is connected with described first pin; The first end of described first electric capacity is connected with described first pin, and the second end of described first electric capacity is connected with described first loudspeaker, forms the series arm of the first electric capacity; The first end of described second electric capacity is connected with the second selecting side of described first by-pass cock, and the second end of described second electric capacity is connected with described first loudspeaker, forms the series arm of the second electric capacity;
Second moved end of described second by-pass cock is connected with described second pin; The first end of described 3rd electric capacity is connected with described 3rd selecting side, and the second end of described 3rd electric capacity is connected with described second loudspeaker, forms the series arm of the 3rd electric capacity; The first end of described 4th electric capacity is connected with described second pin, and the second end of described 4th electric capacity is connected with described second loudspeaker, forms the series arm of the 4th electric capacity;
First selecting side of described first by-pass cock is connected with described first loudspeaker, forms the first short circuit branch of direct-connected wire;
4th selecting side of described second by-pass cock is connected with described second loudspeaker, forms the second short circuit branch of direct-connected wire.
6. earphone according to claim 4, is characterized in that, the two ends of described first electric capacity and/or the second electric capacity are also parallel with resistance respectively.
7. earphone according to claim 5, is characterized in that, the two ends of described first electric capacity, the second electric capacity, the 3rd electric capacity and/or the 4th electric capacity are also parallel with resistance respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520598728.9U CN204948301U (en) | 2015-08-10 | 2015-08-10 | Earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520598728.9U CN204948301U (en) | 2015-08-10 | 2015-08-10 | Earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204948301U true CN204948301U (en) | 2016-01-06 |
Family
ID=55015686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520598728.9U Expired - Fee Related CN204948301U (en) | 2015-08-10 | 2015-08-10 | Earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204948301U (en) |
-
2015
- 2015-08-10 CN CN201520598728.9U patent/CN204948301U/en not_active Expired - Fee Related
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Address after: 35th floor, block a, Tanglang City, 3333 Liuxian Avenue, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Wanmo acoustics Co.,Ltd. Address before: 35th floor, block a, Tanglang City, 3333 Liuxian Avenue, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: 1MORE Inc. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 35th floor, block a, Tanglang City, 3333 Liuxian Avenue, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: 1MORE Inc. Address before: 518000 Room 201, building a, general office of Qianhai Shenzhen Hong Kong Cooperation Zone Administration Bureau, No.1 liyumen street, Qianwan 1st Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen City, Guangdong Province Patentee before: 1MORE Inc. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20210810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |