CN204119450U - A kind of earphone earphone cord stretching structure - Google Patents
A kind of earphone earphone cord stretching structure Download PDFInfo
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- CN204119450U CN204119450U CN201420569065.3U CN201420569065U CN204119450U CN 204119450 U CN204119450 U CN 204119450U CN 201420569065 U CN201420569065 U CN 201420569065U CN 204119450 U CN204119450 U CN 204119450U
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Abstract
The utility model provides a kind of earphone earphone cord stretching structure, comprise earphone cord, the upper shell fastened up and down and lower house, the rotary components for receiving and pull out earphone cord is provided with in the inner space formed after upper shell and lower house fasten, described rotary components comprises a rotary body, rotary body is provided with the power part for providing rotary power for rotary body, rotary body is connected by the axis of rotation on lower house with lower house; Be provided with between described rotary body and lower house for providing spacing for earphone cord from being wound and limit assembly that is rotational trajectory.Compared with prior art, the utility model provides a kind of earphone earphone cord stretching structure, earphone cord can be pulled out in headset body according to user's wish, and there is Collapsible structure inside, user only gently need pull earphone cord, and earphone cord just can be regained by automatic winding.Therefore without the need to arranging earphone cord, the problem that earphone cord is wound around mutually is avoided.
Description
Technical field
The utility model relates to earphone wire auxiliary accessories technical field, particularly relates to a kind of earphone earphone cord stretching structure.
Background technology
Nowadays, earphone has been widely used in the middle of the digital electronic goods such as MP3 player, mobile phone, computer, existing earphone is formed primarily of parts such as shell, earphone cord, loudspeaker, earplug, circuit board having built-ins, loudspeaker are located in shell, earplug has phonate hole, holding wire one end connects earplug, and the other end is connected with wiring board.This structure major defect is be limited to fixing earphone cord length, and user can not arbitrarily pull.Easily there is the problem that earphone cord is wound around mutually.And earphone cord is in bending state for a long time, thus occur that earphone cord weares and teares, affect the earphone cord life-span.In prior art, some design is by being wound around in earphone inside by earphone cord, with convenient for collecting earphone cord.But these volumes be designed with are excessive, affect the outward appearance of product, also inconvenient user's storage; Some needs manually advance winding, bring great inconvenience to user.
In prior art, general design be simple by parts by mechanical connection mode link together, because earphone products is different from other electrical type consumer products, its internal structure for earphone electroacoustics design extremely important.This kind designs because the part-structure exposed is relatively complicated, may affect the electroacoustic signal transmission of earphone, affect the broadcasting tonequality of earphone.So when headset designs, if adopt this structure, need the profile of its complexity to be formed a profile vector collection of illustrative plates, add in computational process, which increase amount of calculation greatly.And because winding mechanism critical piece is rotating parts, in order to the earphone circuit preventing rotating parts to be suspended to other in the process rotated, just need to be fixed earphone circuit segmentation, increase design and the process time of earphone like this.
Whole take-up mechanism is carried out encapsulation process by the docking of upper shell and lower house by the technical scheme of the application, defines the module of a fixed profile.When designing earphone internal structure, only needing a fixing profile Vector Message to add in the design of earphone interior shape, reducing design time and the design difficulty of earphone.And by upper shell and lower house, rotating parts is wrapped up, prevent rotating parts in rotary course, be suspended to other earphone wire, so all the other wire rods of earphone can carry out a kind of loose fixing, reduce the process time of earphone, reduce the cost of product.
Rotary components comprises a rotary body, and rotary body is provided with the power part for providing rotary power for rotary body, rotary body is connected by the axis of rotation on lower house with lower house.
In the technical scheme of the application, power part is wind spring.Wind spring can provide lasting rotary power in a less space, is the optimal selection of technical scheme.But determined by the mechanical property of wind spring, the moment that wind spring exports when tightening is large, and close to when entirely loosening, the moment of output can reduce a lot.In order to reduce this uneven output torque of wind spring, in existing scheme, generally can add a speed stabilizing mechanism, utilizing it to carry out the rotating speed of stabilizing mechanism, if there is no speed stabilizing mechanism, be difficult to the output torque stablizing wind spring, corresponding technical purpose cannot be reached.But the volume of speed stabilizing mechanism is larger comparatively speaking, be not suitable for using in this application.So wind spring is arranged in a upper less groove of rotary body by the technical scheme of the application, utilize the radius change of indentation limitations wind spring when unfolding, slow down the output torque loss of wind spring thus, and wind spring was applied before loading the pretightning force of a part in advance to wind spring, enable wind spring have certain output torque after said fitting.Or wind spring is set to S type instead of equidistant spiral-shaped, so also can reduces moment loss during output, keeps one stablely to rotate output.
The power output of wind spring is used to the powered rotation into rotary body, so one end of wind spring needs to fix with a non-rotary fixture, the other end and rotary body are fixed.In this application, wind spring is set to semicircle end by paracentral one end, submarginal one end is set to quadrangle end.Semicircle end is fixedly connected with rotating shaft with the flat recess be arranged in rotating shaft, and quadrangle end is fixedly connected with rotary body by being arranged at rotary body projection on rotary body.
One end of earphone cord to be wound is connected with rotary body and is wound in rotating shaft by the revolving force of power part.In the scheme of the application, because rotating shaft is the rotary supporting part of rotary body, and the diameter of rotating shaft is minimum, so the more earphone cord of winding can tried one's best in limited space in rotating shaft by earphone cord from being wound.But because the diameter of rotating shaft is little, earphone cord from being wound is its bending place will be many above, fracture in the bending that can not continue again in order to earphone cord, the operation of relieving, best scheme twines one deck in advance in rotating shaft, and by stopping means, the earphone cord twined in advance is fixed, make it can not be drawn out in operation, so just can ensure that the radius bend of earphone cord will too smallly cause earphone cord to rupture.And owing to forming frictional force between the earphone cord meeting that twines in advance and rotating shaft, when the pulling force pullling earphone cord is excessive, can ensures that earphone cord tail end and head circuit junction can not under tensions by the earphone cord twined in advance, ensure the stability connected.
Above-mentioned stopping means can be the various stopping means such as limit hook, spacing ring, tail end stator.
Being provided with between rotary body and lower house for providing spacing for earphone cord from being wound and limit assembly that is rotational trajectory, comprising a track plate and one U-shaped.Lower house is provided with a U-type groove with rotating shaft junction, and the lower end of rotating shaft is arranged at the center of U-type groove.U-shaped to be arranged in U-type groove and along U-type groove length direction rectilinear motion.Track plate is positioned at U-shaped top and is socketed in rotating shaft, and track plate is provided with rotation track near U-shaped side, and U-shaped is provided with U-shaped projection, and U-shaped projection and rotation track are joined to be incorporated in rotation track and moved along track.
Rotation track comprises inner orbit and outside track; Described track plate is provided with the annular protrusion being positioned at track plate outer rim, track plate and rotating shaft junction are provided with track plate axle, are provided with some arrangement ringwise and end to end arc convex between track plate axle and annular protrusion; Form inner orbit between described arc convex and track plate axle, between arc convex and annular protrusion, form outside track;
U-shaped projection moves in inner orbit and outside track, is provided with for the U-shaped interval projected through between two arc convex.
Annular protrusion is provided with one, and for making, U-shaped to project through the track that interval enters inner orbit from outside track protruding towards track plate axle side.
One of them interval away from track projection is provided with a rail groove for spacing U-shaped projection, and the width of rail groove is greater than the width of the arc-shaped protrusions be adjacent.
The course of work of said structure is as follows, and when earphone cord pulls out, projection is rotated in track plate track.As at outside track, protrudingly to rotate clockwise in outside track.When turning to track high spot, be subject to the effect of its power, projection is transferred to inner orbit from outside track.Thus reach protruding and rotate clockwise at inner orbit.If now loosed one's grip, disc spring provides restoring force, and track plate is rotated counterclockwise.Projection is now counterclockwise rotates along inner orbit, is finally transferred in rail groove, thus reaches spacing state.Now earphone cord is fixed to certain length.If after this user continues gently to draw earphone cord, track plate continues to rotate clockwise.By the effect that rail groove is given protruding power and rotated clockwise, projection can be transferred to outside track from inner orbit.After being transferred to outside track, if user looses one's grip again, track plate rotates counterclockwise.Thus realize the operation that earphone cord packs up automatically.The critical condition of packing up for user loose one's grip time, whether projection is transferred to outside track from inner orbit.If be transferred to outside track, after loosing one's grip, earphone cord is recoverable.If no, after loosing one's grip, projection also can be transferred in rail groove counterclockwise.Earphone cord can not be regained.
In prior art, the single earphone cord of the many employings of earphone cord from being wound mode is that concentric circles is arranged by the mode of annular.Earphone cord can be avoided although it is so to occur the trouble that lamination is wound around, but the length of the earphone cord that such mode can be received is shorter, space availability ratio is lower, compared with the stowing operation that cannot meet the longer scheme of some earphone cord in narrow space, also be unfavorable for the volume reducing module, bring very large trouble to design.
The technical scheme of the application is carried out moving along the track of track by the U-shaped projection of U-shaped and is made rotary body earphone cord can be made to be wound around according to certain winding rule when being wound around earphone cord in interior outside track, spatially more well-regulated arrangement can be carried out like this in the length of rotating shaft, the earphone cord of larger lengths can be received in limited space, reduce the overall volume of module, and solve earphone cord because of be wound around uneven and cause earphone cord to occur lamination is tied a knot, the problem that cannot extract out, is user-friendly to.
In prior art, can single direction rotation be carried out and the mechanical structure realizing automatic rolling has a lot, but in this application, be all individual layer kinking to solve in prior art, the problem that space availability ratio is low, have employed track plate and U-shaped with the use of technical scheme.Like this in order to realize the object of the volume reducing module, single direction rotation and automatic takeup carry out with regard to the parts not by adding other, can only be designed by the improvement of said structure.So the application is by arc convex segment design, and carry out interval setting by between two arc convex, be provided with for the U-shaped interval projected through between two adjacent arc convex.And these arc convex are not from the beginning to the end wide, but be designed to the form of width gradual change, U-shaped like this projection can carry out the conversion of interior outside track under the effect of wind spring and user's pulling force, the rail groove being provided with arc is to realize single direction rotation and being fixed when certain length, person easy to use, according to the earphone cord needing pull-out corresponding length of oneself, has further facilitated user's use.So just can realize all functions when not increasing miscellaneous part, saving module spatial volume, can apply in more product type again, reduce die sinking expense, thus save production cost.
The tail end of earphone cord is through the through hole be arranged on rotary body and be fixedly connected with two brushes; Described brush is electrically connected with head circuit by the pcb board that is arranged in upper enclosure inner wall.
One end of earphone cord will be connected with loud speaker, and the other end must frames connecting with headphone signal circuit.In the prior art, generally can carry out curling winding by the middle part of earphone cord, and tail end is still connected with head circuit by earphone cord, such mode need a flexible clamp piece block earphone cord a bit, thus the one end that earphone cord can not be made to be connected with head circuit when the power of batching is large is subject to excessive pulling force and solder joint is thrown off.But the material of such design flexibility fastener requires high, and in the process of assembling, to need between flexible clamp piece and solder joint the earphone cord of reserved one section of regular length, this section of earphone cord is greater than the circuit distance between flexible clamp piece and solder joint.Such design both wasted material, added the weight of whole module, and when the pulling force that earphone cord receives be greater than the card of flexible clamp piece and power or fastener loosen, all can not reach original effect, make the life-span of earphone have received impact.
So the application has abandoned such design when designing, the structure adopting pcb board to be combined with brush has been used as electric connection structure.
Brush is fixedly connected with one end of earphone cord, and contacts with pcb board, is electrically connected with head circuit by pcb board.So both ensure that the stability of power taking, be improved the useful life of earphone, and due to its compact conformation, do not need unnecessary wire rod to bear pulling force, which offers a saving the volume of global design, be convenient for carrying use.
Due to the application adopt brush and pcb board to join and mode be electrically connected, so how to ensure that the good contact of brush and pcb board just becomes an important problem, in prior art, the fixed form of brush has a variety of, as connected by groove inserted sheet, be bolted to connection, but the defect that aforesaid way has it intrinsic, the mode of grafting has with fixing dynamics less, be applicable to contact little, use when the direction of power does not change, and brush will be fixed on rotary body by the application, the rotation of rotary body is to the power bringing various direction between brush and rotary body, and due to the restriction of thickness and intensity, on rotary body, fluting is difficult to realize, institute is obviously improper by this way.And adopt be screwed also inapplicable, although the mode that screw is fixed be easy to most operation and cost is minimum, but due to the rotation of rotary body, the revolving force of a transverse direction can be produced between brush and rotary body, be easy to like this make screw loosening, affect fixed effect, use when being adapted at non-rotary body, improper in this application.
So the brush of the application is fixedly connected with rotary body by hot molten column, hot molten column is fixedly connected with brush by hot melting way.Such mode can ensure the stability that brush and rotary body are fixed.Further, owing to being difficult to the uniformity ensureing overall dimension in brush manufacture process.Adopt in this way, even if the size of profile is variant when brush manufactures, under the mobilization after hot molten column hot melt, hot molten column also can form a suitable fixed housing according to the overall dimension of brush fixing point, provides good fixed effect.
In the technical scheme of the application, in order to make the connection of earphone cord and rotating shaft more firm, and can ensure that earphone cord can be wound in rotating shaft, the rotary body axle be socketed in rotating shaft is provided with at rotary body and rotating shaft junction, rotary body is provided with positioning convex, and the part of earphone cord to be wound on rotary body axle and to be fixed by positioning convex.
Rotary body axle adds the contact area of rotary body and rotating shaft, limit the degree of freedom of rotary body and rotating shaft in the axial direction, thus rotary body there will not be and rocks in the process rotated, and further increases the stability of earphone cord from being wound, the situation reducing lamination knotting occurs.
Utility model content
The purpose of this utility model is to provide a kind of earphone earphone cord stretching structure, and solve the problem of existing earphone earphone cord tangled up and knotted when not using, and can realize the automatic rolling of earphone cord, person easy to use receives use.
For solving the problem, the utility model provides a kind of earphone earphone cord stretching structure, and for furling earphone cord and carrying out spacing to earphone cord, comprising: electrical connection module, earphone cord tail end is connected with head circuit by electrical connection module; Rotary components, is provided with a take-up groove, is accommodated in take-up groove by earphone cord by rotation mode; Power Component, provides rotary power in rotary components rotary course; Limit assembly, makes rotary components forward normally rotate, the reverse rotation of restriction rotary components; The upper shell fastened up and down and lower house, inner spatial accommodation is formed after upper shell and lower house fasten, rotary components, Power Component and limit assembly are arranged in spatial accommodation, and the upper shell position corresponding to the junction of lower house is provided with the breach passed for earphone cord; Rotary components comprises a rotary body and is arranged at the rotating shaft on lower house, and rotary body and rotating shaft are socketed and rotate; Limit assembly comprises a track plate be arranged between rotary body and lower house, track plate is provided with for limiting rotary body single direction rotation and limiting the rotation track of rotary body rotary motion trace.
Further, described track plate be connected with rotary body and with rotary body with turn; Described lower house is provided with a U-type groove with rotating shaft junction, and the lower end of rotating shaft is arranged at the center of U-type groove; Be provided with one U-shaped in described U-type groove, U-shaped along U-type groove length direction rectilinear motion; Described track plate is positioned at U-shaped top and is socketed in rotating shaft, and track plate is provided with rotation track near U-shaped side, and U-shaped is provided with U-shaped projection; Described U-shaped projection coordinates with rotation track, and moves along rotation track in rotation track when rotary body rotates.
Further, described track plate to be arranged on lower house and to be socketed with rotating shaft; The lower surface that described rotary body is relative with track plate is provided with a U-type groove, rotating shaft is through the through hole in U-type groove; One U-shaped is provided with, U-shaped the length direction rectilinear motion along U-type groove in described U-type groove; Track plate is provided with rotation track near U-shaped side, and U-shaped is provided with U-shaped projection; Described U-shaped projection coordinates with rotation track, and moves along rotation track in rotation track when rotary body rotates.
Further, described rotation track comprises inner orbit and outside track; Described track plate is provided with the annular protrusion being positioned at track plate outer rim, track plate and rotating shaft junction are provided with track plate axle, are provided with some arrangement ringwise and its end to end arc convex between track plate axle and annular protrusion; Form inner orbit between described arc convex and track plate axle, between arc convex and annular protrusion, form outside track;
Further, described U-shaped projection moves in inner orbit and outside track; Be provided with between described two arc convex for the U-shaped interval projected through.
Further, described annular protrusion is provided with one U-shaped to project through the track that interval enters inner orbit from outside track protruding for making towards track plate axle side.
Further, one of them interval away from track projection described is provided with a rail groove for spacing U-shaped projection, and the width of rail groove is greater than the width of the arc-shaped protrusions be adjacent.
Further, described electrical connection module comprises a pcb board and some brushes, and the tail end of earphone cord is through the through hole be arranged on rotary body and be fixedly connected with two brushes; Described brush is electrically connected with head circuit by the pcb board that is arranged in upper enclosure inner wall.
Further, described rotary body and rotating shaft junction are provided with the rotary body axle be socketed in rotating shaft, and rotary body is provided with positioning convex, and the part of earphone cord to be wound on rotary body axle and to be fixed by positioning convex.
Further, described power part is wind spring, and wind spring is arranged at the wind spring groove be positioned on rotary body; Described wind spring is semicircle end by paracentral one end, and submarginal one end is quadrangle end; Described semicircle end is fixedly connected with rotating shaft with the flat recess be arranged in rotating shaft, and quadrangle end is fixedly connected with rotary body by being arranged at rotary body projection on rotary body.
Compared with prior art, the utility model provides a kind of earphone earphone cord stretching structure, earphone cord can be pulled out in headset body according to user's wish, and there is Collapsible structure inside, user only gently need pull earphone cord, and earphone cord just can be regained by automatic winding.Therefore without the need to arranging earphone cord, the problem that earphone cord is wound around mutually is avoided.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the utility model embodiment 1 internal structure schematic diagram;
Fig. 3 is U-shaped mounting structure figure of the utility model embodiment 1;
Fig. 4 is U-shaped and track plate matching chart of the utility model embodiment 1;
Schematic diagram when Fig. 5 is the U-shaped projection orbital motion outside of the utility model embodiment 1;
Fig. 6 is the schematic diagram of U-shaped projection when inner orbit moves of the utility model embodiment 1;
Fig. 7 be the U-shaped projection of the utility model embodiment 1 spacing time schematic diagram;
Fig. 8 is the schematic diagram of the U-shaped projection of the utility model embodiment 1 when transforming to inner orbit from outside track;
Fig. 9 is the schematic diagram of the U-shaped projection of the utility model embodiment 1 when transforming to outside track from inner orbit;
Figure 10 is the utility model embodiment 1PCB plate and electric brush connecting structure schematic diagram;
Figure 11 is the internal structure schematic diagram of the utility model embodiment 2; ;
In figure, 1 is upper shell; 2 is lower house; 11 is breach; 3 is rotary body; 4 is rotating shaft; 5 is power part; 6 is track plate; 7 is U-shaped; 8 is U-type groove; 71 is U-shaped projection; 61 is inner orbit; 62 is outside track; 63 is annular protrusion; 64 is track plate axle; 65 is arc convex; 66 is interval; 67 is that track is protruding; 68 is rail groove; 8 is pcb board; 9 is brush; 31 is positioning convex; 32 is rotary body axle.
Embodiment
For making the purpose of this utility model, feature becomes apparent, and be further described, but the utility model can realize by different forms, should not think and just be confined to described embodiment below in conjunction with accompanying drawing to embodiment of the present utility model.
Embodiment one
As Figure 1-10 shows, the present embodiment provides a kind of earphone earphone cord stretching structure, comprise earphone cord, the upper shell fastened up and down and lower house, be provided with the rotary components for receiving and pull out earphone cord in the inner space formed after upper shell and lower house fasten, the upper shell position corresponding to the junction of lower house is provided with the breach passed for earphone cord.
Embodiment two
As shown in figure 11, the difference of the present embodiment and embodiment one is: track plate to be arranged on lower house and to be socketed with rotating shaft; The lower surface that described rotary body is relative with track plate is provided with a U-type groove, rotating shaft is through the through hole in U-type groove; One U-shaped is provided with, U-shaped the length direction rectilinear motion along U-type groove in described U-type groove; Track plate is provided with rotation track near U-shaped side, and U-shaped is provided with U-shaped projection; Described U-shaped projection coordinates with rotation track, and moves along rotation track in rotation track when rotary body rotates.
In order to reduce the overall weight of module, it is smaller that the volume of wind spring can design, and the moment of torsion that such wind spring exports will reduce, and is that track plate rotates with rotary body in embodiment one, and such wind spring needs the load weight driven to be exactly the weight of rotary body and track plate.And in the present embodiment, track plate is fixed, just U-shaped is rotated with rotary body, because the weight of U-shaped will be far smaller than the weight of track plate, what bring is exactly that output torque required for wind spring will reduce thereupon, volume can be selected like this relative to wind spring less in embodiment one, further can reduce the volume and weight of whole module.
Obviously, those skilled in the art can carry out various change and modification to utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. an earphone earphone cord stretching structure, for furling earphone cord and carrying out spacing to earphone cord, is characterized in that: comprising:
Electrical connection module, earphone cord tail end is connected with head circuit by electrical connection module;
Rotary components, is provided with a take-up groove, is accommodated in take-up groove by earphone cord by rotation mode;
Power Component, provides rotary power in rotary components rotary course;
Limit assembly, makes rotary components forward normally rotate, the reverse rotation of restriction rotary components;
The upper shell fastened up and down and lower house, inner spatial accommodation is formed after upper shell and lower house fasten, rotary components, Power Component and limit assembly are arranged in spatial accommodation, and the upper shell position corresponding to the junction of lower house is provided with the breach passed for earphone cord;
Rotary components comprises a rotary body and is arranged at the rotating shaft on lower house, and rotary body and rotating shaft are socketed and rotate; Limit assembly comprises a track plate be arranged between rotary body and lower house, track plate is provided with for limiting rotary body single direction rotation and limiting the rotation track of rotary body rotary motion trace.
2. earphone earphone cord stretching structure as claimed in claim 1, is characterized in that: described track plate be connected with rotary body and with rotary body with turn; Described lower house is provided with a U-type groove with rotating shaft junction, and the lower end of rotating shaft is arranged at the center of U-type groove; Be provided with one U-shaped in described U-type groove, U-shaped along U-type groove length direction rectilinear motion; Described track plate is positioned at U-shaped top and is socketed in rotating shaft, and track plate is provided with rotation track near U-shaped side, and U-shaped is provided with U-shaped projection; Described U-shaped projection coordinates with rotation track, and moves along rotation track in rotation track when rotary body rotates.
3. earphone earphone cord stretching structure as claimed in claim 1, is characterized in that: described track plate to be arranged on lower house and to be socketed with rotating shaft; The lower surface that described rotary body is relative with track plate is provided with a U-type groove, rotating shaft is through the through hole in U-type groove; One U-shaped is provided with, U-shaped the length direction rectilinear motion along U-type groove in described U-type groove; Track plate is provided with rotation track near U-shaped side, and U-shaped is provided with U-shaped projection; Described U-shaped projection coordinates with rotation track, and moves along rotation track in rotation track when rotary body rotates.
4. earphone earphone cord stretching structure as claimed in claim 2 or claim 3, is characterized in that: described rotation track comprises inner orbit and outside track; Described track plate is provided with the annular protrusion being positioned at track plate outer rim, track plate and rotating shaft junction are provided with track plate axle, are provided with some arrangement ringwise and end to end arc convex between track plate axle and annular protrusion; Form inner orbit between described arc convex and track plate axle, between arc convex and annular protrusion, form outside track;
5. earphone earphone cord stretching structure as claimed in claim 4, is characterized in that: described U-shaped projection moves in inner orbit and outside track; Be provided with between described two arc convex for the U-shaped interval projected through.
6. earphone earphone cord stretching structure as claimed in claim 5, is characterized in that: described annular protrusion is provided with one, and for making, U-shaped to project through the track that interval enters inner orbit from outside track protruding towards track plate axle side.
7. earphone earphone cord stretching structure as claimed in claim 5, it is characterized in that: one of them interval away from track projection described is provided with a rail groove for spacing U-shaped projection, and the width of rail groove is greater than the width of the arc-shaped protrusions be adjacent.
8. earphone earphone cord stretching structure as claimed in claim 1, is characterized in that: described electrical connection module comprises a pcb board and some brushes, and the tail end of earphone cord is through the through hole be arranged on rotary body and be fixedly connected with two brushes; Described brush is electrically connected with head circuit by the pcb board that is arranged in upper enclosure inner wall.
9. earphone earphone cord stretching structure as claimed in claim 1, it is characterized in that: described rotary body and rotating shaft junction are provided with the rotary body axle be socketed in rotating shaft, rotary body is provided with positioning convex, and the part of earphone cord to be wound on rotary body axle and to be fixed by positioning convex.
10. earphone earphone cord stretching structure as claimed in claim 1, it is characterized in that: described power part is wind spring, wind spring is arranged at the wind spring groove be positioned on rotary body; Described wind spring is semicircle end by paracentral one end, and submarginal one end is quadrangle end; Described semicircle end is fixedly connected with rotating shaft with the flat recess be arranged in rotating shaft, and quadrangle end is fixedly connected with rotary body by being arranged at rotary body projection on rotary body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569065.3U CN204119450U (en) | 2014-09-29 | 2014-09-29 | A kind of earphone earphone cord stretching structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569065.3U CN204119450U (en) | 2014-09-29 | 2014-09-29 | A kind of earphone earphone cord stretching structure |
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| CN204119450U true CN204119450U (en) | 2015-01-21 |
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| CN201420569065.3U Active CN204119450U (en) | 2014-09-29 | 2014-09-29 | A kind of earphone earphone cord stretching structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301825A (en) * | 2014-09-29 | 2015-01-21 | 青岛歌尔声学科技有限公司 | Headset wire telescopic structure for headset |
| CN109009659A (en) * | 2018-07-17 | 2018-12-18 | 广州轴心生物科技有限公司 | A kind of detachable type intelligence eyeshade with herbal fomentation curative effect |
-
2014
- 2014-09-29 CN CN201420569065.3U patent/CN204119450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301825A (en) * | 2014-09-29 | 2015-01-21 | 青岛歌尔声学科技有限公司 | Headset wire telescopic structure for headset |
| CN109009659A (en) * | 2018-07-17 | 2018-12-18 | 广州轴心生物科技有限公司 | A kind of detachable type intelligence eyeshade with herbal fomentation curative effect |
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