CN112040377B - Loudspeaker, voice coil manufacturing method and coil winding device - Google Patents
Loudspeaker, voice coil manufacturing method and coil winding device Download PDFInfo
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- CN112040377B CN112040377B CN202010911045.XA CN202010911045A CN112040377B CN 112040377 B CN112040377 B CN 112040377B CN 202010911045 A CN202010911045 A CN 202010911045A CN 112040377 B CN112040377 B CN 112040377B
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- 238000004804 winding Methods 0.000 title claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 15
- 241000425571 Trepanes Species 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000013011 mating Effects 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 8
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- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 2
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- 230000004308 accommodation Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a loudspeaker, a voice coil manufacturing method and a coil winding device, wherein the coil winding device comprises a winding unit, a hiding unit and a rotating unit; the winding unit comprises an installation piece, a winding shaft and a first driver, wherein one end of the installation piece is provided with an installation hole, the winding shaft penetrates through the installation hole, and the first driver is used for driving the winding shaft to reciprocate relative to the depth direction of the installation hole; the hidden unit comprises a connecting piece, matching pieces and a second driver, the matching pieces can be arranged on the connecting piece in a swinging mode, one sides of all the matching pieces are matched to form a sleeve hole, an avoiding space is arranged between the sleeve hole and the connecting piece, the sleeve hole is in sleeve fit with the winding shaft, so that the matching pieces and the mounting pieces are arranged at intervals to form a limiting space, and the second driver drives the matching pieces to move to open or close the sleeve hole; the rotary unit can drive the spool to rotate, or the rotary unit can drive the spool and the fitting piece to rotate synchronously along the central line of the spool.
Description
Technical Field
The invention relates to the technical field, in particular to a loudspeaker, a voice coil manufacturing method and a coil winding device.
Background
The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the voice coil is stressed to move in a magnetic field under the power-on state, so that the vibrating diaphragm is driven to vibrate to generate sound.
At present, when a voice coil with at least two coils is manufactured, after a first coil is wound, a second coil is wound above or below the first coil; in the process of winding the second coil, the wound coil can influence a coil which is wound later, so that the structure of the coil wound later is irregular, the quality of a voice coil with at least two coils is influenced, and the performance of the loudspeaker is not improved favorably.
Disclosure of Invention
Accordingly, there is a need for a speaker, a voice coil, a method of manufacturing a voice coil, and a coil winding apparatus. The coil winding device can wind more than two coils, can avoid the influence of the wound coils on the coils which are wound later, and is favorable for ensuring the quality of the voice coil with at least two coils. The voice coil manufacturing method can avoid the interference between the coils in the winding process by utilizing the coil winding device, and is beneficial to ensuring the manufacturing quality of the voice coil with at least two coils. The voice coil is obtained by the voice coil manufacturing method, so that the quality can be improved, and the production cost can be reduced. This speaker has adopted this voice coil loudspeaker voice coil, can reduction in production cost, and improves tone quality.
The technical scheme is as follows:
in one aspect, the present invention provides a coil winding apparatus, including a winding unit, a hiding unit and a rotating unit; the winding unit comprises an installation piece, a winding shaft and a first driver, wherein one end of the installation piece is provided with an installation hole, the winding shaft penetrates through the installation hole, and the first driver is used for driving the winding shaft to reciprocate relative to the depth direction of the installation hole; the hidden unit comprises a connecting piece, at least two matching pieces and a second driver, the matching pieces can be arranged on the connecting piece in a swinging mode, all the matching pieces are matched to form a sleeve hole, an avoiding space is arranged between the sleeve hole and the connecting piece, the sleeve hole is in sleeve matching with the winding shaft, so that the matching pieces and the mounting pieces are arranged at intervals to form a limiting space, and the second driver drives at least one matching piece to move, so that the sleeve hole is opened or closed; the rotary unit can drive the spool to rotate, or the rotary unit can drive the spool and the fitting piece to rotate synchronously along the central line of the spool.
When the coil winding device is used, the second driver acts to enable the trepanning to be in an open state; then the first driver acts to move the spool to a first preset position, and then the trepan boring is closed. One end of the metal wire is fixed on the winding shaft, and the rotating unit acts to rotate the winding shaft or synchronously rotate the winding shaft and the matching piece along the central line of the winding shaft, so that the metal wire is wound on the winding shaft to form a first coil. After the first coil is obtained, the second driver acts again to open the trepanning, and the first driver acts to move the winding shaft, so that the first coil moves out of the limiting space and is arranged in the avoiding space. Then the trepanning is closed again, and one end of the metal wire is fixed on the winding shaft, and the rotating unit acts again to enable the winding shaft to rotate or the winding shaft and the matching piece to synchronously rotate along the central line of the winding shaft, so that the metal wire is wound and woven on the winding shaft to form a second coil. Therefore, reciprocating operation can be carried out, at least two coils can be wound on the same winding shaft, and the influence of the wound coils on the coils which are newly wound at the back can be avoided.
Furthermore, after the winding of a preset number of coils is completed on the winding shaft, all the coils are arranged in the limiting space; then close the trepanning for the spool removes, the preset distance between the adjacent coil of adjustment, because coil itself adopts the metal wire coiling that has the coating viscose to form, so heat the spool, can be fixed into a voice coil loudspeaker voice coil with all coils. Thus, the device of the invention is beneficial to ensuring the quality of the voice coil with at least two coils.
The technical solution is further explained below:
in one embodiment, the number of the matching pieces corresponds to the number of the second drivers one by one, and one second driver drives one matching piece to swing; or the hiding unit further comprises a linkage piece, and the second driver drives all the matched pieces to synchronously swing through the linkage piece, so that the trepanning is opened or closed.
In one embodiment, the connecting piece is provided with a containing hole which is in clearance fit with the winding shaft, and the containing hole is arranged above the sleeve hole to form an avoiding space.
In one embodiment, each of the engagement members is automatically repositionable such that one end of each of the engagement members engages to form a socket.
In one embodiment, an elastic reset piece is arranged between two adjacent matched pieces, so that the matched pieces can be automatically reset; or the matching piece can be elastically reset and arranged on the connecting piece, so that the matching piece can be automatically reset.
In one embodiment, the rotating unit includes a first rotator for driving the spool to rotate and a second rotator for driving the fitting member to rotate, and the first rotator and the second rotator are coupled to rotate so that the spool and the fitting member rotate synchronously along the center line of the spool.
On the other hand, the invention also provides a voice coil manufacturing method, which utilizes the coil winding device in any embodiment and further comprises the following steps:
moving the winding shaft to a first preset position, and closing the trepan boring;
fixing one end of the metal wire on the winding shaft, so that the metal wire is wound and woven on the winding shaft to form a first coil;
after the first coil is obtained, opening the trepanning, moving the winding shaft, and moving the first coil out of the limiting space;
the eyelet is then closed and one end of the wire is secured to the bobbin so that the wire is wound on the bobbin to form a second coil.
When the voice coil is manufactured by the voice coil manufacturing method, after the first coil is manufactured, the first coil can be moved to the avoidance space from the limiting space by utilizing the matching of the winding shaft and the matching piece, so that the first coil cannot influence the subsequent second coil manufactured in the limiting space. Therefore, the interference between the coils in the winding process can be avoided, and the manufacturing quality of the voice coil with at least two coils is favorably ensured; meanwhile, the yield of the voice coil in the manufacturing process can be improved, the waste of materials and time is reduced, and the manufacturing cost of the voice coil is favorably reduced.
The technical solution is further explained below:
in one embodiment, after the winding of the second coil is completed, the method further includes the following steps:
opening the trepan boring, moving the winding shaft, and arranging the first coil in the limiting space;
closing the trepanning, and moving the winding shaft to enable the first coil and the second coil to be close to each other to a preset distance;
and then heating the bobbin to make the first coil and the second coil be bonded and fixed to form the voice coil.
On the other hand, the invention also provides a voice coil which is obtained by adopting the manufacturing method of the voice coil in any embodiment.
From the above analysis, the voice coil is obtained by the above manufacturing method, which can improve the quality and reduce the production cost.
In another aspect, the present invention further provides a speaker including the voice coil as described above.
This speaker has adopted this voice coil loudspeaker voice coil, can reduction in production cost, and avoids the interference between the coiling in-process coil, can guarantee the coiling quality of coil, is favorable to improving tone quality.
Drawings
Fig. 1 is a schematic structural diagram of a coil winding apparatus according to an embodiment;
fig. 2 is a schematic bottom view of the coil winding apparatus shown in fig. 1;
FIG. 3 is a schematic cross-sectional view of B-B shown in FIG. 2;
FIG. 4 is a side view of the coil winding apparatus shown in FIG. 1;
fig. 5 is a schematic cross-sectional view of C-C shown in fig. 4.
Description of reference numerals:
100. a winding unit; 110. a mounting member; 112. mounting holes; 120. a spool; 130. a first driver; 200. a hiding unit; 210. a connecting member; 212. an accommodation hole; 220. a mating member; 221. a concave surface; 222. a pressing end; 223. a pressure-bearing end; 230. a second driver; 240. trepanning; 250. a limiting space; 260. avoiding a space; 400. and a coil.
Brief description of the drawingsthe accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention, and together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, in a first embodiment, a winding apparatus for a coil 400 is provided, which includes a winding unit 100, a hiding unit 200, and a rotating unit (not shown); the winding unit 100 comprises a mounting member 110, a winding shaft 120 and a first driver 130, wherein one end of the mounting member 110 is provided with a mounting hole 112, the winding shaft 120 is arranged in the mounting hole 112 in a penetrating manner, and the first driver 130 is used for driving the winding shaft 120 to reciprocate relative to the depth direction of the mounting hole 112; the hiding unit 200 comprises a connecting piece 210, at least two matching pieces 220 and a second driver 230, the matching pieces 220 are arranged on the connecting piece 210 in a swinging mode, all the matching pieces 220 are matched to form a sleeve hole 240, an avoiding space 260 is arranged between the sleeve hole 240 and the connecting piece 210, the sleeve hole 240 is matched with the winding shaft 120 in a sleeved mode, the matching pieces 220 and the mounting piece 110 are arranged at intervals to form a limiting space 250, and the second driver 230 drives at least one matching piece 220 to move, so that the sleeve hole 240 is opened or closed; the rotation unit can drive the spool 120 to rotate, or the rotation unit can drive the spool 120 and the fitting member 220 to rotate synchronously along the center line of the spool 120.
When the coil 400 winding device is used, the second driver 230 acts to open the trepan boring 240; the first actuator 130 is then actuated to move the spool 120 to the first predetermined position, and then to close the trepan 240. One end of the wire is fixed to the bobbin 120, and the rotating unit is operated to rotate the bobbin 120 or to rotate the bobbin 120 and the fitting 220 synchronously along the center line of the bobbin 120, so that the wire is wound on the bobbin 120 to form the first coil 400. After the first coil 400 is obtained, the second driver 230 operates again to open the trepan boring 240, and the first driver 130 operates to move the bobbin 120, so that the first coil 400 moves out of the limiting space 250 and is disposed in the avoiding space 260. Then, the looping 240 is closed, and one end of the wire is fixed on the bobbin 120, and the rotating unit is operated again to rotate the bobbin 120 or the bobbin 120 and the fitting 220 rotate synchronously along the center line of the bobbin 120, so that the wire is wound on the bobbin 120 to form the second coil 400. Thus, the reciprocating operation can wind at least two coils 400 on the same bobbin 120, and can avoid the influence of the already-wound coils 400 on the later newly-wound coils 400.
Further, after the winding of a preset number of coils 400 is completed on the winding shaft, all the coils 400 are arranged in the limiting space 250; then, the sleeve hole 240 is closed, so that the bobbin 120 moves, the preset distance between the adjacent coils 400 is adjusted, and since the coils 400 are wound by using metal wires coated with adhesive, the bobbin 120 is heated, and all the coils 400 can be fixed into one voice coil. Thus, the use of the apparatus of the present invention is advantageous in ensuring the quality of a voice coil having at least two coils 400.
It should be noted that the "first driver 130" includes, but is not limited to, power devices that directly provide a telescopic power, such as a telescopic stick, a telescopic plate, a telescopic rod, a pneumatic rod, a hydraulic rod, and a linear motor, and also includes devices that indirectly provide a telescopic power by using a rack and pinion mechanism + a motor, a lead screw nut mechanism + a motor, and the like, to realize the reciprocating movement of the spool 120.
It should be noted that the "second driver 230" includes, but is not limited to, power devices directly providing telescopic power, such as a telescopic stick, a telescopic plate, a telescopic rod, a pneumatic rod, a hydraulic rod, and a linear motor, and also includes devices indirectly providing telescopic power by using a rack-and-pinion mechanism + a motor, a lead screw nut mechanism + a motor, and the like, to achieve the reciprocating swing of the mating member 220.
It should be noted that the rotating unit includes a servo motor, a rotary hydraulic cylinder, and other devices that directly provide rotary power, and also includes other devices that indirectly provide rotary power, such as a pneumatic rod + rack-and-pinion mechanism, a hydraulic rod + crank rocker mechanism, or a crank slider mechanism. The above can be realized in the prior art, and the details are not repeated herein.
The "bobbin 120" and the "mounting member 110" may be disposed opposite to each other, or may be disposed on the same side, that is, the "mounting member 110" may be disposed above or below the "bobbin 120", as long as the "bobbin 120" can be inserted into the "mounting hole 112".
Specifically to in this embodiment, the bobbin 120 is disposed below the mounting member 110, the bobbin 120 can move upward and be inserted into the mounting hole 112, and the rotating unit can drive the mounting member 110 to rotate, the mounting member 110 is in transmission connection with the bobbin 120, and then the bobbin 120 can be driven to rotate by the rotating mounting member 110, which is easy to implement.
Specifically, as shown in fig. 1 to 5, in an embodiment, the number of the mating members 220 corresponds to the number of the second drivers 230, and one second driver 230 drives one mating member 220 to swing. In this way, the linkage control of the second driver 230 is utilized to realize the synchronous swing of the fitting member 220, and the opening or closing of the trepan boring 240 is realized. If the number of the matching members 220 is 3, the number of the second drivers 230 is also 3, and one second driver 230 drives one matching member 220 to swing; in this way, the three second drivers 230 operate synchronously to realize synchronous swing of the three engaging pieces 220200, so as to realize opening or closing of the trepan 240.
Or in another embodiment, the hiding unit 200 further includes a link member (not shown), the fitting members 220 are rotatably disposed on the connecting member 210, and the second driver 230 drives all the fitting members 220 to synchronously swing through the link member, so that the trepan 240 is opened or closed. In this way, the second driver 230 is engaged with the link member to synchronously swing the engaging member 220, so as to synchronously open or close the trepan 240. Therefore, the linkage member can synchronously drive all the fitting members 220 to swing for the connecting rod, the traction rope and the like, so as to open or close the trepan boring 240.
Specifically, in one embodiment, one end of the fitting member 220 is drivingly connected to the second driver 230, and the other end of the fitting member 220 is engaged with the other end of the other fitting member 220 to form the trepan 240. In this way, the second driver 230 can drive one end of the fitting element 220 to swing, so that the other end of the fitting element 220 can also swing, and the trepan 240 can be opened or closed.
The specific implementation of the "avoiding space 260" can be formed by various methods, such as disposing the connecting element 210 and the mating element 220 at a distance to form the avoiding space 260. Or on the basis of any of the above embodiments, as shown in fig. 3, in an embodiment, the connecting member 210 is provided with a receiving hole 212 in clearance fit with the bobbin 120, and the receiving hole 212 is disposed above the sleeve hole 240 to form an escape space 260.
In addition to any of the above embodiments, as shown in fig. 3 and 5, in one embodiment, each of the fitting members 220 can be automatically reset such that one side of all of the fitting members 220 are fitted to form the housing 240. Therefore, the second driver 230 only needs to provide power for opening the trepan boring 240, and the problem that the second driver 230 is powered on all the time and the power cost is wasted is avoided.
It should be noted that the "automatic reset" implementation manner of "each mating member 220 can be implemented by any one of the existing technologies that meet the requirement of use, such as elastic reset, gravity automatic reset, or magnetic automatic reset.
Specifically, in the present embodiment, an elastic reset element is disposed between two adjacent mating members 220, so that the mating members 220 can be automatically reset; or the fitting member 220 may be elastically restored on the connection member 210 so that the fitting member 220 can be automatically restored. Thus, the automatic resetting of the mating member 220 is realized by using the elastic automatic resetting technology, and in the process, the elastic resetting force can be set between the mating member 220 and the mating member 220, and also can be set between the mating member 220 and the connecting member 210.
In addition to any of the above embodiments, in an embodiment, the rotating unit includes a first rotator (not shown) and a second rotator (not shown), the first rotator is used for driving the spool 120 to rotate, the second rotator is used for driving the fitting member 220 to rotate, and the first rotator and the second rotator are matched, so that the spool 120 and the fitting member 220 rotate synchronously along the center line of the spool 120. In this way, the spool 120 and the mating member 220 rotate synchronously by the linkage control of the first rotator and the second rotator, so as to wind the metal wire, thereby obtaining the corresponding coil 400. Meanwhile, the spool 120 and the fitting 220 rotate synchronously, which is beneficial to reducing the direct abrasion between the spool 120 and the fitting and improving the service life of the spool 120.
The second embodiment further provides a method for manufacturing a voice coil, which utilizes the device for winding the coil 400 in any one of the above embodiments, and further includes the following steps:
so that the bobbin 120 moves to the first preset position, and the trepan boring 240 is closed;
fixing one end of the wire to the bobbin 120 such that the wire is wound on the bobbin 120 to form a first coil 400;
after the first coil 400 is obtained, the trepan boring 240 is opened, the bobbin 120 moves, and the first coil 400 is moved out of the limit space 250;
the eyelet 240 is then closed and an end of the wire is secured to the bobbin 120 such that the wire is wound around the bobbin 120 to form a second coil 400.
When the voice coil is manufactured by using the above manufacturing method of the voice coil, after the first coil 400 is manufactured, the bobbin 120 may be used to cooperate with the fitting 220 to move the first coil 400 from the limiting space 250 to the avoiding space 260, so that the first coil 400 does not affect the second coil 400 subsequently manufactured in the limiting space 250. Thus, the interference between the coils 400 in the winding process can be avoided, and the manufacturing quality of the voice coil with at least two coils 400 can be ensured; meanwhile, the yield of the voice coil in the manufacturing process can be improved, the waste of materials and time is reduced, and the manufacturing cost of the voice coil is favorably reduced.
On the basis of the above embodiments, in an embodiment, after completing the winding of the second coil 400, the method further includes the following steps:
opening the trepan boring 240, moving the bobbin 120, and disposing the first coil 400 in the spacing space 250;
closing the trepan boring 240, and moving the bobbin 120 to make the first coil 400 and the second coil 400 close to each other to a preset distance;
the bobbin 120 is then heated so that the first coil 400 is adhesively secured to the second coil 400 to form a voice coil.
Thus, after the second coil 400 is wound, the distance between the first coil 400 and the second coil 400 can be adjusted by using the device of the invention, so that the voice coil can be conveniently heated and fixed. In the process, the coil 400 is wound by adopting the metal wire coated with the adhesive, so that the adhesive does not need to be coated; and the coil 400 can be bonded and fixed into a voice coil without transferring, so that the structural deviation of the coil 400 in the transferring process can be avoided, and the quality of the voice coil can be ensured.
It should be noted that the "preset distance" may be adjusted according to the performance requirement of the voice coil, and belongs to the prior art, and is not described herein again.
In a third embodiment, a voice coil is further provided, which is obtained by using the voice coil manufacturing method in any one of the above embodiments.
From the above analysis, the voice coil is obtained by the above manufacturing method, which can improve the quality and reduce the production cost.
Fourth, a speaker is also provided, including the voice coil as described above.
This speaker has adopted this voice coil loudspeaker voice coil, can reduction in production cost, and avoids the interference between the coiling in-process coil 400, can guarantee the coiling quality of coil 400, is favorable to improving tone quality.
It should be noted that, equivalently, "some" or "some" may be a part corresponding to "a member", that is, "some" or "some" may be manufactured integrally with "another part of the member"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present invention are only one embodiment, and are not intended to limit the scope of the present invention for reading convenience, and the present invention should be construed as equivalent technical solutions if the features and the effects described above are included.
It should be noted that, equivalently, the components included in the "unit", "assembly", "mechanism" and "device" of the present invention can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above components into the present invention is only one embodiment, which is convenient for reading and is not a limitation to the protection scope of the present invention, and the equivalent technical solutions of the present invention should be understood as if they include the above components and have the same function.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A coil winding device, comprising:
the winding unit comprises an installation piece, a winding shaft and a first driver, wherein one end of the installation piece is provided with an installation hole, the winding shaft penetrates through the installation hole, and the first driver is used for driving the winding shaft to reciprocate relative to the depth direction of the installation hole;
the hidden unit comprises a connecting piece, at least two matching pieces and a second driver, the matching pieces can be arranged on the connecting piece in a swinging mode, all the matching pieces are matched to form a sleeve hole, an avoiding space is arranged between the sleeve hole and the connecting piece, the sleeve hole is matched with the winding shaft in a sleeved mode, the matching pieces and the mounting pieces are arranged at intervals to form a limiting space, and the second driver drives at least one matching piece to move, so that the sleeve hole is opened or closed; and
and the rotating unit can drive the winding shaft to rotate, or the rotating unit can drive the winding unit and the hiding unit to synchronously rotate around the central line of the winding shaft.
2. The coil winding device according to claim 1, wherein the number of the fitting pieces corresponds to the number of the second drivers one to one, and one second driver drives one fitting piece to swing; or the hiding unit further comprises a linkage piece, and the second driver drives all the matching pieces to synchronously swing through the linkage piece, so that the trepanning is opened or closed.
3. The coil winding device according to claim 1, wherein the connecting member is provided with a receiving hole which is in clearance fit with the winding shaft, and the receiving hole is arranged above the sleeve hole to form the avoiding space.
4. The coil winding device according to claim 1, wherein each of the fitting members is automatically resettable such that one side of all of the fitting members cooperate to form the trepan.
5. The coil winding device according to claim 4, wherein an elastic reset piece is arranged between two adjacent matching pieces, so that the matching pieces can be automatically reset; or the matching piece can be elastically reset and arranged on the connecting piece, so that the matching piece can be automatically reset.
6. A coil winding device according to any one of claims 1 to 5, wherein the rotating unit includes a first rotator and a second rotator, the first rotator is configured to rotate the bobbin, the second rotator is configured to rotate the fitting, and the first rotator and the second rotator are configured to cooperate with each other so that the bobbin and the fitting rotate synchronously along a center line of the bobbin.
7. A method for manufacturing a voice coil, wherein the coil winding apparatus according to any one of claims 1 to 6 is used, further comprising the steps of:
moving the winding shaft to a first preset position, and closing the trepan boring;
fixing one end of a metal wire on the winding shaft, so that the metal wire is wound and woven on the winding shaft to form a first coil;
after the first coil is obtained, the trepanning is opened, the winding shaft moves, and the first coil is moved out of a limiting space;
the eyelet is then closed and an end of the wire is secured to the spool such that the wire is wound on the spool to form a second coil.
8. The method for manufacturing a voice coil according to claim 7, wherein after the winding of the second coil is completed, the method further comprises the following steps:
opening the trepanning, moving the winding shaft, and arranging the first coil in the limiting space;
closing the trepanning, and moving the winding shaft to enable the first coil and the second coil to be close to each other to a preset distance;
and then heating the winding shaft to ensure that the first coil and the second coil are bonded and fixed to form a voice coil.
9. A voice coil obtained by the method for manufacturing a voice coil according to claim 7 or 8.
10. A loudspeaker comprising a voice coil as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911045.XA CN112040377B (en) | 2020-09-02 | 2020-09-02 | Loudspeaker, voice coil manufacturing method and coil winding device |
| PCT/CN2020/117679 WO2022047860A1 (en) | 2020-09-02 | 2020-09-25 | Speaker, voice coil, method for manufacturing voice coil and coil winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911045.XA CN112040377B (en) | 2020-09-02 | 2020-09-02 | Loudspeaker, voice coil manufacturing method and coil winding device |
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| Publication Number | Publication Date |
|---|---|
| CN112040377A CN112040377A (en) | 2020-12-04 |
| CN112040377B true CN112040377B (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010911045.XA Active CN112040377B (en) | 2020-09-02 | 2020-09-02 | Loudspeaker, voice coil manufacturing method and coil winding device |
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| Country | Link |
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| CN (1) | CN112040377B (en) |
| WO (1) | WO2022047860A1 (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3682951B2 (en) * | 2000-11-30 | 2005-08-17 | 太陽誘電株式会社 | Coil manufacturing method, coil component and manufacturing method thereof |
| JP4889515B2 (en) * | 2007-01-30 | 2012-03-07 | サトーホールディングス株式会社 | Ribbon winding reel |
| CN102082986B (en) * | 2009-11-26 | 2015-06-17 | 安桥株式会社 | Voice coil and electrodynamic speaker using same |
| CN108174339A (en) * | 2018-02-26 | 2018-06-15 | 江西雁腾科技有限公司 | A kind of multi-functional voice coil bobbin winder device |
| CN109068259A (en) * | 2018-08-03 | 2018-12-21 | 瑞声光电科技(常州)有限公司 | A kind of winding tool of voice coil and the winding method of voice coil |
| CN109309898B (en) * | 2018-10-09 | 2023-11-28 | 东莞市威元电子科技有限公司 | Full-automatic voice coil winding machine |
| CN209105459U (en) * | 2018-11-27 | 2019-07-12 | 浙江田中精机股份有限公司 | A kind of bobbin winder device for coiling voice coil coil |
| CN111294720B (en) * | 2018-12-07 | 2021-08-10 | 瑞声科技(新加坡)有限公司 | Voice coil assembly, manufacturing method, loudspeaker, winding equipment and additional structure thereof |
| CN209571330U (en) * | 2019-03-29 | 2019-11-01 | 埃斯凯电气（天津）有限公司 | A kind of transformer coiling tooling |
| CN110149578A (en) * | 2019-05-09 | 2019-08-20 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110166905B (en) * | 2019-05-09 | 2021-11-02 | 瑞声光电科技(常州)有限公司 | Sound production device and winding method of voice coil thereof |
| CN209731562U (en) * | 2019-07-11 | 2019-12-03 | 美特科技(苏州)有限公司 | Voice coil coiling tool and the double voice coil made of the tool |
-
2020
- 2020-09-02 CN CN202010911045.XA patent/CN112040377B/en active Active
- 2020-09-25 WO PCT/CN2020/117679 patent/WO2022047860A1/en active Application Filing
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| Publication number | Publication date |
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| WO2022047860A1 (en) | 2022-03-10 |
| CN112040377A (en) | 2020-12-04 |
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Effective date of registration: 20231008 Address after: 213000 No. 801, Changwu Road, Wujin District, Changzhou City, Jiangsu Province (Yuanyu science and technology building, Changzhou science and Education City) Patentee after: Science and Education City branch of Ruisheng new energy development (Changzhou) Co.,Ltd. Patentee after: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee after: Jiangsu Jicui Zhongyi Technology Industry Development Co.,Ltd. Address before: No. 801, Changwu Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: Science and Education City branch of Ruisheng new energy development (Changzhou) Co.,Ltd. Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. |