KR20140146756A - Suspension and speaker device having same - Google Patents

Suspension and speaker device having same Download PDF

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Publication number
KR20140146756A
KR20140146756A KR20130069418A KR20130069418A KR20140146756A KR 20140146756 A KR20140146756 A KR 20140146756A KR 20130069418 A KR20130069418 A KR 20130069418A KR 20130069418 A KR20130069418 A KR 20130069418A KR 20140146756 A KR20140146756 A KR 20140146756A
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KR
South Korea
Prior art keywords
suspension
diaphragm
frame
engaging
speaker device
Prior art date
Application number
KR20130069418A
Other languages
Korean (ko)
Inventor
조태관
Original Assignee
(주) 모토텍
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Publication date
Application filed by (주) 모토텍 filed Critical (주) 모토텍
Priority to KR20130069418A priority Critical patent/KR20140146756A/en
Publication of KR20140146756A publication Critical patent/KR20140146756A/en

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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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • 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
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/204—Material aspects of the outer suspension of loudspeaker diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The present invention relates to a suspension and a speaker device including the same, wherein a suspension for a speaker device according to the present invention, the length of which is at least twice the width, is formed at the outermost portion of the suspension, extending in the longitudinal direction, Two frame engaging portions that engage with the bottom surface of the diaphragm via the bottom surface and engage with the frame through the bottom surface; Two diaphragm coupling portions formed in regions symmetrical to both sides of the suspension and engaging with a bottom surface of the diaphragm through an upper surface thereof; And a coil coupling part formed between the two diaphragm coupling parts so as to be positioned at the center of the suspension and coupled to the bobbin or the voice coil through the bottom surface.

Description

Suspension and Speaker Apparatus Including the SUSPENSION AND SPEAKER DEVICE HAVING SAME [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a suspension for a speaker device and a speaker device including the suspension, and more particularly to a suspension capable of improving acoustic performance.

Speaker devices for components used in TVs generally have a rectangular shape in which the length is more than twice the width of the TV mounting structure. In such a speaker device for components, a structure as shown in Korean Patent Laid-Open No. 10-2010-0011199 is generally used. According to the conventional speaker structure, as shown in Fig. 1, a suspension 10 which is coupled with a plurality of voice coils is used. According to this structure, the driving parts are dispersed on the left and right sides to provide the effect of evenly vibrating the entire surface of the diaphragm, and the dip phenomenon occurring in the frequency band of 2 kHz, which is the main reproduction band . It is understood that the dip phenomenon at a specific frequency is caused by the extinction interference due to the reflected wave of the reverse phase generated in the surround portion which is the boundary region of the diaphragm.

However, this structure is merely to arrange a plurality of driving parts composed of expensive parts such as a magnet, a plate, a yoke, a voice coil and a bobbin in order to prevent uneven vibrations. Inevitably, There is a problem that the production process and structure are complicated and the production yield and defect rate are increased.

Korean Patent Publication No. 10-2010-0011199

In order to solve the above problems, the present invention provides a suspension and a loudspeaker apparatus including the same, wherein a single driving unit is used and two diaphragm coupling parts are formed in an area adjacent to the suspension end, The present invention aims at locally increasing the stiffness of the speaker in the longitudinal boundary region to prevent the dip phenomenon occurring in the main reproduction band of 500 Hz to 3 kHz by suppressing the formation of the anti-phase reflected wave in the surround.

The suspension according to the embodiment of the present invention can reduce the manufacturing cost of the speaker device by improving the acoustic performance of the speaker device without increasing the number of the driving parts and improve the production yield by simplifying the assembling process and structure of the speaker device, And the like.

Another object of the present invention is to disperse the vibration generated by the driving unit evenly on the entire surface of the diaphragm by connecting the driving unit through the extension extending in the area adjacent to the end of the suspension.

In order to achieve the above object, a suspension for a speaker apparatus according to the present invention, the length of which is at least twice as wide as the width, is formed at the outermost periphery of the suspension and extends in the longitudinal direction, Two frame engaging portions which engage and engage with the frame through the bottom face; Two diaphragm coupling portions formed in regions symmetrical to both sides of the suspension and engaging with a bottom surface of the diaphragm through an upper surface thereof; And a coil coupling part formed between the two diaphragm coupling parts so as to be positioned at the center of the suspension and coupled to the bobbin or the voice coil through the bottom surface.

In the suspension for a speaker device according to an embodiment of the present invention, the diaphragm coupling portions are formed in an area within 1/4 of the suspension length at both ends of the suspension.

The suspension for a speaker device according to an embodiment of the present invention may further include supporting portions extending from the frame coupling portions to the coil coupling portion.

In the suspension for a speaker device according to an embodiment of the present invention, the support portions extend in an area within a quarter of the suspension length at an end of the frame engagement portions.

The suspension for a speaker device according to an embodiment of the present invention is formed of a material having electrical conductivity and is divided into two parts symmetrically in the width direction and the both ends of the voice coil are coupled to the divided suspension .

 The suspension for a speaker device according to an embodiment of the present invention further includes a terminal formed at an end portion in the longitudinal direction.

 The speaker device according to the present invention is characterized in that the speaker device is formed to have a length twice or more of the width, A suspension coupled to a bottom surface of the diaphragm via an upper surface; A bobbin coupled to a central region of the suspension; A voice coil wound on the bobbin; A magnetic circuit formed at a position corresponding to the voice coil to supply magnetism to the voice coil; And a frame which receives the magnetic circuit and couples with a part of the bottom surface of the suspension, wherein the suspension is formed at the outermost periphery of the suspension and extends in the longitudinal direction, Two frame engaging portions engaging with the bottom surface of the diaphragm through the bottom surface and engaging with the frame through the bottom surface; Two diaphragm coupling portions formed in regions symmetrical to both sides of the suspension and engaging with a bottom surface of the diaphragm through an upper surface thereof; And a coil coupling part formed between the two diaphragm coupling parts so as to be positioned at the center of the suspension and coupled with the bobbin through a bottom surface.

In the speaker device according to the embodiment of the present invention, the diaphragm coupling portions are formed in an area within 1/4 of the suspension length at both ends of the suspension.

According to the above solution, the suspension according to the present invention and the loudspeaker apparatus using the same can be realized by using a single driving part and forming two diaphragm coupling parts in the area adjacent to the suspension end, It is possible to locally increase the stiffness of the speaker in the boundary region, thereby suppressing the formation of the anti-phase reflected wave in the surround, thereby preventing the dip phenomenon occurring in the main reproduction band of 500 Hz to 3 kHz.

The suspension according to the embodiment of the present invention can reduce the manufacturing cost of the speaker device by improving the acoustic performance of the speaker device without increasing the number of the driving parts and improve the production yield by simplifying the assembling process and structure of the speaker device, .

The suspension according to the embodiment of the present invention provides the effect of evenly dispersing the vibration generated by the driving unit on the entire surface of the diaphragm by connecting the driving unit through the extended part extending in the area adjacent to the end of the suspension.

1 is a perspective view showing a suspension according to the prior art;
2 is a plan view showing a suspension according to an embodiment of the present invention;
3 is an exploded perspective view of a speaker device including a suspension according to an embodiment of the present invention.
4 is a cross-sectional view of a speaker device including a suspension according to an embodiment of the present invention.

Hereinafter, a speaker apparatus according to the present invention will be described with reference to the drawings.

FIG. 2 is a perspective view of a suspension according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of a speaker device including a suspension according to an embodiment of the present invention, FIG. 4 is a perspective view of a suspension according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of a speaker device including a speaker;

The suspension 100 of the present invention is formed to have a length twice or more of the width. Such a structure is suitable for a speaker device for a component in a mounting structure. However, since the diaphragm is formed longer than the width, it is difficult to generate uniform vibration throughout the diaphragm, and the length of the vibration transmitted in the longitudinal direction is Is formed to be longer than the path length, and thus there is a disadvantage in that a large loss of vibration occurs in the high frequency region.

The suspension 100 of the present invention includes frame joints 140, diaphragm joints 120-1 and 120-2, and a coil joint 130.

The frame engaging portions 140 extend in the longitudinal direction at the outermost portion of the suspension 100 and engage with the bottom edge of the diaphragm 200 through the upper surface and engage with the frame 500 through the bottom surface. In FIG. 2, the two outermost frame portions shown at the top and bottom correspond to the frame coupling portion 140.

The diaphragm coupling portions 120-1 and 120-2 are formed in areas symmetrical to both sides of the suspension 100 and function to engage with the bottom surface of the diaphragm 200 through the upper surface. The diaphragm coupling portions 120-1 and 120-2 have a structure different from the conventional suspension 10 and have a function of coupling with the bottom of the body (inner region of the diaphragm surround), which is the vibration surface of the diaphragm 200, But the bobbin 300 is not bonded to the bottom. The shape of the diaphragm coupling portions 120-1 and 120-2 may be formed in a semicircular shape as shown in FIG. 2, but is not limited thereto. An adhesive may be placed on the upper surface of the portion extending linearly in the end region of the diaphragm coupling portions 120-1 and 120-2 so as to be coupled to the bottom of the diaphragm 200. [

It is preferable that the diaphragm engaging portions 120-1 and 120-2 are disposed so as to be adjacent to the edge of the possible longitudinal direction. For this, the diaphragm coupling portions 120-1 and 120-2 may be formed in an area within 1/4 of the length of the suspension 100 at both ends of the suspension 100. In the case where the diaphragm coupling portions 120-1 and 120-2 are separated from the diaphragm coupling portions 120-1 and 120-2, it is difficult to prevent distortion of the sound generated in the boundary condition and to provide uniform vibration of the entire diaphragm because the diaphragm coupling portions 120-1 and 120-2 are adjacent to the central driving portion.

The diaphragm engaging portions 120-1 and 120-2 serve to provide additional stiffness to the longitudinal edge regions of the diaphragm 200 spaced apart from the voice coil 300, Thereby suppressing the formation of reflected waves. Thus, it is possible to improve the dip phenomenon in which the SPL is lowered at 500 Hz to 3 kHz, which is the main regeneration band, without increasing the driving part.

The coil coupling part 130 is formed between the two diaphragm coupling parts 120-1 and 120-2 so as to be positioned at the center of the suspension 100 and the bobbin 300 or the voice coil 310, And performs a combining function. In a typical speaker device, a bobbin 300 is coupled to a coil coupling part 130. However, in the case of a speaker device using a voice coil 310 that is self-bonded without interposing the bobbin 300, (310) can be directly coupled.

Considering the shape of the long speaker device in the longitudinal direction, it is preferable that the electromagnetic force induced in the voice coil 310 is provided to the edge area in the longitudinal direction rather than directly to the center of the vibration plate, More advantageous. 2, the suspension 100 may further include supporting portions 131 formed to extend from the frame coupling portions 140 to the coil coupling portion 130. As shown in FIG. At this time, it is more preferable that the supports 131 extend in an area within 1/4 of the length of the suspension 100 at the ends of the frame joints 140.

As shown in FIG. 2, the suspension 100 of the present invention includes only a single coil coupling part 130, unlike the conventional suspension 10 including a plurality of coil coupling parts. Therefore, It is unnecessary to provide a plurality of magnets, plates, yokes, voice coils, and bobbins, which are parts of the speaker device, so that the manufacturing cost of the speaker device is reduced and the manufacturing process and the structure of the speaker device are simplified to improve the production yield, .

On the other hand, the suspension 100 can be configured to function as an external input line of the speaker device and a conductive path between the voice coil. 2, the suspension 100 is divided into two parts symmetrically to each other in the width direction as shown in FIG. 2, and the both ends of the voice coil 131 are divided into two parts, It can be configured to be coupled to the suspension. At this time, the suspension 100 may further include a terminal 150-2 formed at a longitudinal end thereof and electrically connected to an external input line. In this case, the suspension may further include a temporary connection portion 150-1 for connecting the divided suspensions for the convenience of assembly. The suspension connection part 150-1 is assembled with the parts of the speaker device in a state where the suspensions 100 are connected to each other, and the temporary connection part 150-1 is removed after assembly. According to this structure, the convenience of assembly is improved.

3 and 4 illustrate a speaker device including a suspension according to the present invention. The speaker device according to the present invention includes a diaphragm 200, a suspension 100 according to the present invention, a bobbin 300, a voice coil 310, a magnet 410, a plate 420, A circuit 400, and a frame 500. Since the structure of the speaker device is the same as that of the conventional speaker device and the structure of the suspension 100 is the same as described above, repetitive description will be omitted.

100: Suspension 120-1, 120, 2: Diaphragm coupling part
130: coil coupling part 131: extension part
140: frame coupling unit 150-1: temporary connection unit
150-2: Terminal

Claims (8)

A suspension for a loudspeaker apparatus having a length of at least twice the width,
Two frame joints extending from the outermost periphery of the suspension and extending in the longitudinal direction, respectively, the two frame joints being engaged with the bottom of the diaphragm edge via the upper surface and engaging with the frame through the bottom surface;
Two diaphragm coupling portions formed in regions symmetrical to both sides of the suspension and engaging with a bottom surface of the diaphragm through an upper surface thereof; And
And a coil coupling part formed between the two diaphragm coupling parts to be positioned at the center of the suspension and coupled to the bobbin or the voice coil via the bottom surface.
The method according to claim 1,
Wherein the diaphragm coupling portions are formed in an area within 1/4 of the suspension length at both ends of the suspension.
The method according to claim 1,
Wherein the suspension further comprises support portions extending from the frame engaging portions to the coil engaging portion. ≪ Desc / Clms Page number 20 >
The method of claim 3,
Wherein the support portions extend in an area within a quarter of the suspension length at an end of the frame engaging portions.
The method according to claim 1,
Wherein the suspension is formed of a material having electrical conductivity and is divided into two parts symmetrically in the width direction, and both ends of the voice coil are coupled to the divided suspension.
6. The method of claim 5,
Wherein the suspension further comprises a terminal formed at an end portion in the longitudinal direction.
A speaker device having a length of at least twice the width,
tympanum;
A suspension coupled to a bottom surface of the diaphragm via an upper surface;
A bobbin coupled to a central region of the suspension;
A voice coil wound on the bobbin;
A magnetic circuit formed at a position corresponding to the voice coil to supply magnetism to the voice coil; And
And a frame which receives the magnetic circuit and couples with a part of a bottom surface of the suspension, the suspension comprising:
Two frame joints extending from the outermost periphery of the suspension and extending in the longitudinal direction, respectively, the two frame joints engaging with the bottom of the diaphragm edge via the upper surface and engaging with the frame through the bottom surface;
Two diaphragm coupling portions formed in regions symmetrical to both sides of the suspension and engaging with a bottom surface of the diaphragm through an upper surface thereof; And
And a coil coupling portion formed between the two diaphragm coupling portions so as to be positioned at the center of the suspension and coupled to the bobbin via a bottom surface.
8. The method of claim 7,
Wherein the diaphragm coupling portions are formed in an area within 1/4 of the suspension length at both ends of the suspension.
KR20130069418A 2013-06-18 2013-06-18 Suspension and speaker device having same KR20140146756A (en)

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KR20130069418A KR20140146756A (en) 2013-06-18 2013-06-18 Suspension and speaker device having same

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KR20130069418A KR20140146756A (en) 2013-06-18 2013-06-18 Suspension and speaker device having same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190139496A (en) * 2018-06-08 2019-12-18 이은호 Suspension and speaker assembly having the same
KR20190139497A (en) 2018-06-08 2019-12-18 이은호 Suspension and speaker assembly having the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190139496A (en) * 2018-06-08 2019-12-18 이은호 Suspension and speaker assembly having the same
KR20190139497A (en) 2018-06-08 2019-12-18 이은호 Suspension and speaker assembly having the same

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