KR102547330B1 - Damper bobbin integrated slim speaker - Google Patents

Abstract

The present invention relates to a speaker, and more particularly, by integrally forming a damper and a bobbin, the number of parts and the simplicity and economy of the manufacturing process can be promoted. It relates to a damper bobbin-integrated slim speaker that can
A specific solution of the present invention is,
"A frame 10 having an open upper surface, a fastening hole 100 provided at the center of the lower surface, and an adhesive step 110 provided on the inner circumferential surface at a predetermined position above the fastening hole 100 and the fastening hole 100 ) The damper unit 30 and the damper unit 30 integrally equipped with a bobbin 300 in the center in a circular plate shape so as to be able to adhere to the base plate 20 and the adhesive step 110 that penetrate through the bottom of the ) and the damper unit 30 It includes a diaphragm 40 coupled to the upper side, and 44 to 54% by weight of trimethylolpropane EO modified triacrylate and 2-propenoic acid 1,6- 17-27 wt% hexanediyl, 4-14 wt% 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-10 wt% benzophenone, 0.1-4 wt% aromatic light naphtha solvent A damper bobbin-integrated slim speaker comprising a coating agent mixed with is applied;
The damper unit 30 includes a damper bobbin-integrated slim speaker including a bobbin 300 integrally formed at the center of the damper 310,
The damper unit 30 has a damper 310 and a bobbin 300 integrally formed, and the damper 310 has a plate shape and a cylindrical bobbin 300 integrally formed in the center, and the damper 310 A damper bobbin including a plurality of connecting bars 311 integrally connected and the other side integrally coupled to the outer ring 312 of the damper 310 while maintaining a gap on the upper outer circumferential surface of the bobbin 300 All-in-one slim speaker,
The connection bar 311 is integrally coupled with the bobbin 300 and is formed vertically with the outer ring 312, and then a bent portion 313 is formed in the general direction in the middle portion of the bent portion 313. A damper bobbin-integrated slim speaker including an end formed and coupled vertically to the outer ring 312 and integrally coupled with the outer circumferential surface of the outer ring 312, the connecting bar 311, and the bobbin 300,
40 to 87% by weight of water and poly(acrylic acid-co-maleic acid) sodium salt [POLY (ACRYLIC ACID-CO-MALEIC ACID) SODIUM SALT] or 5 to 10% by weight of any one of poly(4-styrenesulfonic acid-co-maleic acid) sodium salt [POLY(4-STYRENESULFONIC ACID-CO-MALEIC ACID)SODIUM SALT] and 5 to 30% by weight of polyurethane resin (POLYURETHANE RESIN) % and polyvinyl alcohol (POLYVINYL ALCOHOL) 3 to 20% by weight of a coating agent is applied, including a damper bobbin-integrated slim speaker” as its structural feature,
The present invention configured as described above,
By forming the damper and the bobbin integrally, the number of parts and the simplicity and economy of the process can be sought during production. At the same time, the speaker itself can be slimmed down by integrating the damper and the bobbin, and the bobbin is integrated with the damper. As a result, it is possible to improve sound quality such as homogenization and high quality sound by maintaining the consistency and uniformity of the vibration frequency by the electromagnetic force generated from the voice coil wound on the bobbin by minimizing the flow of the bobbin.

Description

Damper bobbin integrated slim speaker

The present invention relates to a speaker, and more particularly, by integrally forming a damper and a bobbin, the number of parts and the simplicity and economy of the manufacturing process can be promoted. It relates to a damper bobbin-integrated slim speaker that can

A speaker is a device that reproduces an electrical signal as sound. A conventional speaker includes a trumpet-shaped frame, a cone-shaped diaphragm vibrating inside the frame, an edge surround supporting the outer circumference of the diaphragm on the upper side of the frame, A bobbin whose upper end is fixed to the center of the diaphragm at the lower side of the diaphragm, a damper whose outer circumference is fixed to the frame and an inner circumference to the bobbin, a voice coil wound on the bobbin, and a donut shape disposed outside the voice coil. A vibration space in which the bobbin vibrates up and down is placed between the permanent magnet, the donut-shaped upper plate fixedly disposed between the frame and the permanent magnet, the lower plate covering the lower part of the permanent magnet, and the permanent magnet and the upper plate. , a pole piece protruding from the lower plate to the inside of the bobbin, and a dust cap to block the inside of the speaker from external dust and to maintain the shape of the diaphragm.

Among the components, the diaphragm, edge surround, bobbin and damper belong to the vibration system, and the voice coil, permanent magnet, upper plate, lower plate and pole piece belong to the magnetic circuit system. In such a speaker, when an electric signal from an amplifier is input to the voice coil, a current according to the electric signal is formed in the voice coil, and mutual interference occurs between the current of the voice coil and the magnetic field formed by the permanent magnet, the upper and lower plates, and the pole piece. The voice coil receives a magnetic force corresponding to the electrical signal, and the bobbin vibrates by the magnetic force, and the vibration plate vibrates along with the bobbin vibration to generate sound.

At this time, the edge surround and the damper provide restoring force when the bobbin and the diaphragm vibrate. In particular, the damper maintains the center by providing the restoring force necessary for the reciprocating motion of the diaphragm and the bobbin to be bounced up and down by the force supplied by the magnetic circuit system. , and the low-pass resonant frequency is controlled using the flexibility of the damper.

Conventionally, the outer circumferential side of the damper that provides restoring force to the bobbin and the diaphragm is fixed to the frame and the central portion is attached to the bobbin, but since the outer circumferential side fixed to the frame and the central portion attached to the bobbin are large, the diaphragm and bobbin As it was affected by the inertial vibration caused by the weight of , noise was caused by unnecessary excitation vibration.

In order to eliminate the excitation vibration caused by inertia, the radius of the damper should be reduced, the strength of the damper increased, or the diaphragm and bobbin should be made light enough to be ignored.

In addition, a plurality of holes are drilled in the damper to prevent changes in speaker operating characteristics due to heat generated by prolonged use of the speaker, but in this case, not only the vibration characteristics are lowered, but also productivity is lowered due to the additional process.

In addition, due to the process of manufacturing a damper by forming a cotton material, impregnating it with a chemical such as phenol, and then performing heat treatment, gas generation harmful to the human body and environmental pollution may occur.

In addition, the initial investment cost for product development was high because a separate mold was required to manufacture the damper.

Patent Registration No. 0633274 "Speaker" was devised to solve this problem. The damper is placed in the vibration space between the bottom of the bobbin and the bottom plate covering the bottom of the magnet constituting the magnetic circuit system, while the damper is made of various materials. It is implemented as an elastic member in the shape of and.

In addition, Patent Registration No. 0452935 "Speaker" removes the damper, installs the shaft in the center of the center cap fixed to the top of the voice coil bobbin, and receives the shaft from the bearing fixed to the through hole formed in the magnetic circuit. By removing it, it is possible to obtain a low-frequency resonance frequency similar to that of a damper with very high flexibility, maintain the center of the vibrating part by the shaft, absorb friction or resonance between the bearing and the shaft by using magnetic fluid, and Since the fluid is maintained and the magnetic fluid is smoothly supplied between the shaft and the bearing, it is possible to construct a speaker capable of suppressing abnormal noise and operating with a large amplitude.

However, the above method uses a method of adding a separate mechanical structure instead of changing the configuration of the damper that functions to maintain the center of the bobbin and the diaphragm or removing the damper, thereby reducing manufacturing cost and time. No significant improvement is obtained.

Korean Patent Registration No. 10-0633274 Korean Patent Registration No. 10-0452935 Korean Patent Registration No. 10-1341733 Korea Patent Registration No. 10-0899464

The present invention was invented to solve the above problems,

By forming the damper and the bobbin integrally, the number of parts and the simplicity and economy of the manufacturing process can be promoted, and at the same time, the damper and the bobbin are integrally configured to slim the speaker itself. To provide a damper bobbin-integrated slim speaker There is an object of the present invention,

In addition, due to the integral damper and bobbin in the manufacturing process, the quickness and simplicity of the manufacturing process can be promoted, and the bobbin is integrated with the damper to minimize the movement of the bobbin, resulting in electromagnetic force generated from the voice coil wound on the bobbin. It is an object of the present invention to provide a damper bobbin-integrated slim speaker capable of improving sound quality, such as homogenization and high-quality sound, by maintaining consistency and uniformity of vibration frequency.

In order to achieve the above object, the present invention,

"A frame 10 having an open upper surface, a fastening hole 100 provided at the center of the lower surface, and an adhesive step 110 provided on the inner circumferential surface at a predetermined position above the fastening hole 100 and the fastening hole 100 ) The damper unit 30 and the damper unit 30 integrally equipped with a bobbin 300 in the center in a circular plate shape so as to be able to adhere to the base plate 20 and the adhesive step 110 that penetrate through the bottom of the ) and the damper unit 30 It includes a diaphragm 40 coupled to the upper side, and 44 to 54% by weight of trimethylolpropane EO modified triacrylate and 2-propenoic acid 1,6- 17-27 wt% hexanediyl, 4-14 wt% 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-10 wt% benzophenone, 0.1-4 wt% aromatic light naphtha solvent A damper bobbin-integrated slim speaker comprising a coating agent mixed with is applied;

The damper unit 30 includes a damper bobbin-integrated slim speaker including a bobbin 300 integrally formed at the center of the damper 310,

The damper unit 30 has a damper 310 and a bobbin 300 integrally formed, and the damper 310 has a plate shape and a cylindrical bobbin 300 integrally formed in the center, and the damper 310 A damper bobbin including a plurality of connecting bars 311 integrally connected and the other side integrally coupled to the outer ring 312 of the damper 310 while maintaining a gap on the upper outer circumferential surface of the bobbin 300 All-in-one slim speaker,

The connection bar 311 is integrally coupled with the bobbin 300 and is formed vertically with the outer ring 312, and then a bent portion 313 is formed in the general direction in the middle portion of the bent portion 313. A damper bobbin-integrated slim speaker including an end formed and coupled vertically to the outer ring 312 and integrally coupled with the outer circumferential surface of the outer ring 312, the connecting bar 311, and the bobbin 300,

40 to 87% by weight of water and poly (acrylic acid-co-maleic acid) sodium salt [POLY (ACRYLIC ACID -CO-MALEIC ACID) SODIUM SALT] or 5 to 10% by weight of any one of poly(4-styrenesulfonic acid-co-maleic acid) sodium salt [POLY(4-STYRENESULFONIC ACID-CO-MALEIC ACID)SODIUM SALT] and 5 to 30% by weight of polyurethane resin (POLYURETHANE RESIN) The above object can be achieved by using a damper bobbin-integrated slim speaker comprising a coating agent coated with a mixture of 3 to 20% by weight of polyvinyl alcohol (POLYVINYL ALCOHOL).

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The present invention configured as described above,

By forming the damper and the bobbin as an integral type, the number of parts and the simplicity and economy of the process can be promoted.

By making the bobbin integral with the damper, the flow of the bobbin is minimized, and the consistency and uniformity of the vibration frequency by the electromagnetic force generated from the voice coil wound on the bobbin is maintained, thereby improving sound quality such as homogenization and high-quality sound. There is.

In the above, the present invention has been illustrated and described as specific preferred embodiments, but the present invention is not limited to the above embodiments and is common knowledge in the art to which the present invention belongs within the scope of not departing from the spirit of the present invention. Various changes and modifications will be possible by the person who has it.

1 is an exploded perspective view of the damper bobbin-integrated slim speaker of the present invention;
2 is a perspective view of a combined damper bobbin-integrated slim speaker of the present invention;
3 is a combined cross-sectional view of the damper bobbin-integrated slim speaker of the present invention;
4 is an exploded cross-sectional view of the damper bobbin-integrated slim speaker of the present invention;
5 is a perspective view of a damper in the damper bobbin-integrated slim speaker of the present invention;
6 is a bottom perspective view of a damper in a damper bobbin-integrated slim speaker according to the present invention.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in this specification are only illustrated for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention Various changes can be made and various forms can be made, so all changes, equivalents, or substitutes included in the spirit and technical scope of the present invention are included, and terms or words used in the specification and claims are conventional or dictionary. Meanings and concepts consistent with the technical idea of the present invention, based on the fact that the inventor can appropriately define the concept of terms in order to explain his/her invention in the best way, as well as not be construed as limited in meaning. should be interpreted as Therefore, the embodiments described in the specification of the present invention and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, and thus replace them at the time of filing of the present invention. It should be understood that various equivalents and variations are possible or exist.

In addition, unless otherwise defined in the specification of the present invention, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. have Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this specification, it should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, a detailed description of the damper bobbin-integrated slim speaker of the present invention will be described with drawings.

1 is an exploded perspective view of the damper bobbin-integrated slim speaker of the present invention, Figure 2 is a combined perspective view of the damper bobbin-integrated slim speaker of the present invention, Figure 3 is a combined cross-sectional view of the damper bobbin-integrated slim speaker of the present invention, Figure 4 is the present inventor An exploded cross-sectional view of the damper bobbin-integrated slim speaker, FIG. 5 is a perspective view of a damper in the damper bobbin-integrated slim speaker of the present invention, and FIG. 6 is a bottom perspective view of the damper in the damper bobbin-integrated slim speaker of the present invention.

The core of the present invention is to form a damper and a bobbin integrally, thereby minimizing the flow of the bobbin so that the quality of sound by the electromagnetic force generated by the voice coil wound on the bobbin can be maintained more uniformly and consistently,

Another key is to minimize product failure and promote economic feasibility during mass production due to the simplicity and speed of the manufacturing process by integrating the damper and the bobbin.

Such a specific configuration of the present invention will be described in detail.

First, indicator 10 indicates a frame, and as shown in FIGS. 1 to 4 , the upper surface of the frame 10 is open so that the diaphragm 40 described below can be coupled to it, and the center of the lower surface is It is provided with a fastening hole 100 and has a structure in which an adhesive step 110 is provided on the inner circumferential surface at a predetermined position on the upper side of the fastening hole 100.

Reference numeral 20 indicates a base plate, and the base plate 20 is through-coupled at the lower side of the fastening hole 100 as shown in FIGS. 1 to 4, and in the present invention, the base plate 20 Since it is not a core technology but a general known technology, an arbitrary name was used, but as shown in FIGS. 3 and 4, the base plate 20 has a configuration called a so-called bottom plate or yoke Y and a permanent magnet M and top plate (R) are commonly used.

Since the base plate 20 applies the general configuration of a speaker as it is, a detailed description thereof will be omitted in the present invention.

Reference numeral 30 indicates a damper unit, and as shown in FIGS. 1, 5, and 6, the damper unit 30 has a circular plate shape so that it can be adhered to the adhesive step 110, and a bobbin 300 at the center. ) As a structure integrally provided, specifically,

The damper unit 30 has a bobbin 300 integrally formed at the center of the damper 310,

5 and 6, the damper unit 30 has a damper 310 and a bobbin 300 integrally formed, and the damper 310 has a plate shape and a cylindrical bobbin 300 at the center. It is integrally formed, and the damper 310 is integrally connected with a plurality of connecting bars 311 while maintaining a gap on the upper outer circumferential surface of the bobbin 300, and the other side is the damper 310 outer ring 312 is integrally connected to

Preferably, a portion of the connection bar 311 integrally coupled with the bobbin 300 is formed vertically with the outer ring 312, and then a bent portion 313 is formed in the general direction in the middle portion, and the bent portion The end of 313 and the outer ring 312 are formed and coupled vertically, so that the outer ring 312, the connecting bar 311, and the outer circumferential surface of the bobbin 300 are integrally coupled.

Reference numeral 40 indicates a diaphragm, and as shown in FIGS. 1 to 4 , the diaphragm 40 is coupled to the upper side of the damper unit 30, and the outer circumferential surface of the diaphragm 40 is It is coupled to the outer circumferential surface of the frame 10.

This is also the same as a general speaker,

Preferably, the entire outer circumference of the frame 10 and the damper unit 30 is preferably coated to prevent discoloration or corrosion. Specifically, the coating agent is trimethylolpropane EO modified triacrylate 44 to 54 % by weight, 17 to 27% by weight of 1,6-hexanediyl 2-propenoic acid, 4 to 14% by weight of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1 to 10% by weight of benzophenone %, containing 0.1 to 4% by weight of an aromatic light naphtha solvent,

More preferably, 40 to 87% by weight of water and poly(acrylic acid-co-maleic acid) sodium as another coating agent to prevent discoloration or corrosion on the entire outer circumferential surface of the frame 10 and the damper unit 30 5 It includes a mixture of ~10% by weight, 5 to 30% by weight of polyurethane resin (POLYURETHANE RESIN) and 3 to 20% by weight of polyvinyl alcohol (POLYVINYL ALCOHOL).

The function and role of the coating agent is to resolve incompleteness of tone due to deformation of the vibrating unit and other components due to corrosion, discoloration, or deformation of the frame 10 and the damper unit 30 .

The core of the present invention is the damper unit 30 in which the damper 310 and the bobbin 300 are integrally configured.

The operation of the present invention configured as described above will be described.

As shown in FIG. 4, after coupling the base plate 20 to the fastening hole 100 of the frame 10, winding the voice coil around the bobbin 300 of the damper unit 30, the damper unit 30 ) Among the integrated configurations, the bottom surface of the outer ring 312 of the damper 310 is adhesively bonded to the adhesive step 110 of the frame 10, and the vibration plate 40 is coupled to the frame 10 to easily assemble This is possible, and the present invention assembled as described above can promote the number of parts and the simplicity and economy of the process when manufacturing by forming the damper and the bobbin integrally, and at the same time, by configuring the damper and the bobbin integrally, the speaker itself can be slimmed down can help,

By making the bobbin integral with the damper, the flow of the bobbin is minimized, and the consistency and uniformity of the vibration frequency by the electromagnetic force generated from the voice coil wound on the bobbin is maintained, thereby improving sound quality such as homogenization and high-quality sound. There is.

As described above, although the present invention has been described with limited embodiments and drawings, the present invention is not limited to the above embodiments, of course, from the above description by a person having ordinary technical knowledge in the field to which the present invention belongs. Of course, various modifications and variations may be possible.

Therefore, the technical idea in the present invention should be grasped by the claims described below, but it will be obvious that all equivalent or equivalent modifications belong to the scope of the technical idea of the present invention.

10: frame 20: base plate
30: damper unit 40: diaphragm
100: fastening hole 110: adhesive step
300: bobbin 310: damper
311: connecting bar 312: outer ring
313: bending part M: permanent magnet
R: Top plate Y: Yoke

Claims (6)

The upper surface is open and the fastening hole 100 is provided in the center of the lower surface, and the fastening hole 100 is provided with an adhesive step 110 on the inner circumferential surface at a predetermined position. The frame 10 and the fastening hole 100 The upper side of the damper unit 30 and the upper side of the damper unit 30 having a bobbin 300 integrally provided in a circular plate shape so as to be bonded to the base plate 20 and the adhesive step 110 penetrated from the lower side of the Including a diaphragm 40 coupled to,
On the entire outer circumference of the frame 10 and the damper unit 30, 44 to 54% by weight of trimethylolpropane EO modified triacrylate, 17 to 27% by weight of 1,6-hexanediyl 2-propenoate, 2- A damper bobbin comprising a coating agent coated with a mixture of 4 to 14 wt% of hydroxy-2-methyl-1-phenyl-1-propanone, 1 to 10 wt% of benzophenone, and 0.1 to 4 wt% of an aromatic light naphtha solvent. All-in-one slim speaker.
According to claim 1,
The damper unit 30 is a damper bobbin integrated slim speaker including a bobbin 300 integrally formed at the center of the damper 310.
According to claim 1,
The damper unit 30 has a damper 310 and a bobbin 300 integrally formed,
The damper 310 is integrally formed with a cylindrical bobbin 300 at the center in a plate shape, and the damper 310 is integral with a plurality of connecting bars 311 while maintaining a gap on the upper outer circumferential surface of the bobbin 300 A damper bobbin-integrated slim speaker that is coupled to and the other side is integrally coupled to the outer ring 312 of the damper 310.
According to claim 3,
The connection bar 311 is integrally coupled with the bobbin 300 and is formed vertically with the outer ring 312, and then a bent portion 313 is formed in the general direction in the middle portion of the bent portion 313. A damper bobbin-integrated slim speaker comprising an end formed and coupled perpendicularly to the outer ring 312 and integrally coupled with the outer circumferential surface of the outer ring 312, the connecting bar 311, and the bobbin 300.
According to claim 1,
40 to 87% by weight of water and poly(acrylic acid-co-maleic acid) sodium salt [POLY (ACRYLIC ACID-CO-MALEIC ACID) SODIUM SALT] or 5 to 10% by weight of any one of poly(4-styrenesulfonic acid-co-maleic acid) sodium salt [POLY(4-STYRENESULFONIC ACID-CO-MALEIC ACID)SODIUM SALT] and 5 to 30% by weight of polyurethane resin (POLYURETHANE RESIN) A damper bobbin-integrated slim speaker including a coating agent coated with 3 to 20% by weight of polyvinyl alcohol (POLYVINYL ALCOHOL).





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