Speaker device

Abstract

Disclosed is a speaker device comprising: a speaker unit that has an external-magnet-type magnetic circuit coupled to the rear of a basket; and an enclosure in the form of a box for mounting and accommodating the speaker unit, wherein the enclosure has mounting holes, formed on the front surface, for mounting the basket, through-holes formed on both the upper and lower surfaces such that the upper and lower surfaces of a magnet constituting the magnetic circuit are externally exposed, and cylindrical mounting lugs, integrally formed inside the through-holes, for mounting the magnetic circuit.

Description

Speaker device

[0001] The present invention relates to a speaker device, and more specifically, to a speaker device for improving sound quality performance while slimming down the thickness of the enclosure and reducing enclosure resonance to enhance the impact of the bass.

[0002] Generally, a speaker is an acoustic device that radiates sound waves by converting electrical signals into vibrations of a diaphragm to generate compressional waves in the air. It is largely composed of a speaker unit, an enclosure that encloses the unit and maintains the resonance chamber (volume frame) and external frame, and a crossover network that acts as the brain (electrical circuit).

[0003] These types of speakers are classified according to frequency range into Full-Range, Sub-Woofer, Woofer, Squawker, and Tweeter; according to the diaphragm into Cone type, Dome type, Horn type, and Flat Diaphragm type; and according to structure into Multi-Way, Coaxial, and Component types.

[0004] The sound quality of a speaker is determined by the performance of the speaker unit, the material and shape of the enclosure, and the characteristics of the network.

[0005] A speaker unit consists of a vibrating system (diaphragm, dust cap, voice coil) that vibrates and moves, a magnetic system (magnet, pole piece, plate, yoke) which is a magnetic circuit that generates a magnetic field, and a support system (edge, damper, basket) that absorbs vibration energy generated from the diaphragm.

[0006] The cone plays the role of reproducing sound by vibrating the air in the atmosphere.

[0007] The dust cap is located inside the center of the diaphragm and serves to prevent the entry of foreign substances such as dust.

[0008] The voice coil is wound within a magnetic gap, and when a current containing a voice signal flows, it plays the role of vibrating the diaphragm through up-and-down movement caused by magnetic interaction with the magnet (permanent magnet).

[0009] The pole piece is located at the center of the magnet and strengthens the magnetic field generated by the magnet, playing a role in controlling the flow of the magnetic field.

[0010] The yoke and plate use a dielectric material such as iron to control the flow of the magnetic field formed from the magnet (drawing magnets and magnetic flux in the magnetic circuit) and at the same time enhance the strength of the magnetic field.

[0011] The edge plays a role in smoothly guiding the up-and-down movement of the diaphragm and controlling vibration.

[0012] The damper supports the voice coil in the correct position within the magnetic gap between the yoke and the pole piece, supports the space between the diaphragm and the basket, and controls the movement of the diaphragm to enable accurate sound reproduction.

[0013] The basket acts as a frame that holds the diaphragm, voice coil, edge, and damper.

[0014] The magnet plays the role of generating a magnetic field capable of interacting with the magnetic field formed by the current of the voice coil.

[0015] In other words, the respective magnetic fields generated by the voice coil and the magnet interact with each other according to Fleming's left-hand rule, causing the voice coil and the diaphragm to move, thereby producing sound.

[0016] Here, magnets can be classified into types such as ferrite, alnico, and neodymium magnets, and can be further classified into internal (P-type) and external (F-type) types based on the shape of the magnetic circuit formed by the magnet and the iron material.

[0017] In other words, in an internal magnetic circuit, the magnet is located on the inner side of the yoke, and in an external magnetic circuit, the magnet is located on the outer side of the pole.

[0018] Recently, in order to achieve an elegant and concise design, enclosures that form the resonance space between the speaker unit and the enclosure are becoming smaller or slimmer.

[0019] However, if the size of the magnet is small, the overall size of the speaker device also decreases, affecting acoustic performance and output. Furthermore, since the sound receiving space (internal volume of the enclosure) is reduced, inevitably leading to a degradation of acoustic effects, there are limitations to making it slimmer and thinner.

[0020] Therefore, there is a need to develop a speaker device that can maximize the acoustic space and the size of the speaker unit within the limited size of the enclosure.

[0021] It is stated that the background technology or prior art described herein refers to information possessed by the inventor or acquired during the process of deriving and completing the present invention, and is specified merely to aid in understanding the technical significance of the present invention and to be useful for prior art search and examination, and does not mean technology that was generally known and widely used in the technical field to which the invention belongs prior to the filing of the present invention.

[0022] Accordingly, the inventors of the present invention, while comprehensively considering the aforementioned matters and with the idea of ​​resolving the technical limitations and problems of existing speaker devices, have devoted strenuous efforts to continuous research to develop a speaker device with a new structure capable of improving sound quality performance while slimming the thickness of the enclosure and increasing the strength of the enclosure to reduce resonance and enhance the impact of the bass. As a result of this research, the present invention was conceived.

[0023] Therefore, the technical problem and objective that the present invention aims to solve is to provide a speaker device that can slim down the thickness of the enclosure while improving sound quality performance.

[0024] Another technical problem and objective that the present invention aims to solve is to provide a speaker device capable of increasing the strength of the enclosure.

[0025] The technical problems and objectives that the present invention aims to solve are not limited to those mentioned above, and other unmentioned technical problems and objectives will be clearly understood by those skilled in the art from the description below.

[0026] A specific means according to an aspect of the present invention for effectively achieving a specific technical purpose while embodying a new concept for solving the technical problem of the present invention as described above is provided, comprising a speaker unit having an external magnetic circuit coupled to the rear of a basket or diaphragm, and an enclosure formed in a box shape for mounting and housing the speaker unit, wherein a mounting hole for mounting the basket or diaphragm is formed on the front surface, through holes are formed on both upper and lower surfaces so that the upper and lower surfaces of a magnet constituting the magnetic circuit are exposed to the outside, and a tubular mounting lug for mounting the magnetic circuit is integrally formed inside the through holes.

[0027] Thus, the present invention has a new effect of improving sound quality performance and slimming down the thickness of the enclosure.

[0028] In addition, in a preferred aspect of the present invention, the magnetic circuit is formed such that the magnet is mounted between the first and second plates, and the enclosure is formed by dividing it into an upper cabinet with an upper mounting lug formed inside the upper through-hole for mounting the upper part of the magnetic circuit and a lower cabinet with a lower mounting lug formed inside the lower through-hole for mounting the lower part of the magnetic circuit, thereby allowing it to be processed into various shapes, which increases the freedom of design and ensures ease of assembly.

[0029] In addition, as a preferred aspect of the present invention, the left and right edges facing each other of the upper cabinet and the lower cabinet are formed to interlock in an inclined or stepped shape, so that they can be easily and simply attached by methods such as fusion or bonding during assembly.

[0030] In addition, in a preferred aspect of the present invention, the four corner portions of the first and second plates are formed with bevels that are cut at an angle, and fixing grooves are formed on the front and rear surfaces of the upper mounting lug and the lower mounting lug, respectively, so that the interior of the enclosure can be stably sealed.

[0031] In addition, in a preferred aspect of the present invention, the slope is formed in a stepped shape having a step difference in the thickness direction of the first and second plates, and the fixing groove is formed in a stepped shape having multiple grooves corresponding to the slope, thereby allowing the interior of the enclosure to be sealed more simply, stably, and double-sealed.

[0032] In addition, a preferred aspect of the present invention is formed by integrally forming a thin, long plate-shaped rib perpendicular to the cross-section of the upper cabinet and the lower cabinet on the thin, flat inner surfaces to increase rigidity and reinforce strength, thereby enabling a slim design by increasing strength while minimizing the thickness of the enclosure, as well as improving the impact of the bass by reducing resonance.

[0033] According to an embodiment that implements the technical concept on which a unique solution means is based to solve the technical problem of the present invention, the upper and lower surfaces of the magnet constituting the magnetic circuit of the speaker unit are exposed to the outside through a through hole in the enclosure and are mounted on a mounting lug, so the size of the magnet can be formed as large as possible within the predetermined thickness of the enclosure, or the thickness of the enclosure can be reduced based on a magnet of a predetermined size.

[0034] Therefore, the magnetic flux density of the magnet is relatively increased, which not only improves sound quality performance but also enables a slim design by minimizing the thickness of the enclosure.

[0035] In addition, the structure increases the strength of the enclosure, which reduces resonance and can enhance the impact of the bass.

[0036] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0037] FIG. 1 is a perspective view showing a speaker device according to an embodiment of the present invention.

[0038] FIG. 2 is an enlarged cross-sectional view showing a speaker device according to an embodiment of the present invention.

[0039] FIG. 3 is a disassembled perspective view of a speaker device according to an embodiment of the present invention.

[0040] FIG. 4 is a perspective view showing a disassembled speaker unit, which is one of the main elements constituting a speaker device according to an embodiment of the present invention.

[0041] FIG. 5 is an exploded perspective view showing a speaker device according to another embodiment of the present invention.

[0042] FIG. 6 is a perspective view showing a local portion of the main elements constituting a speaker device according to another embodiment of the present invention.

[0043] FIG. 7 is an exploded perspective view showing some of the main elements constituting a speaker device according to another embodiment of the present invention.

[0044] FIG. 8 is an exploded perspective view showing some of the main elements constituting a speaker device according to another embodiment of the present invention.

[0045] Hereinafter, embodiments according to the present invention will be described in more detail with reference to the attached drawings.

[0046] Prior to this, it is specified that the terms described below are defined in consideration of their functions in the present invention, and that they should be interpreted in accordance with the concept consistent with the technical spirit of the present invention and the meaning commonly accepted or recognized in the relevant technical field.

[0047] In addition, if it is determined that a detailed description of known functions or configurations related to the present invention could obscure the essence of the present invention, such detailed description is omitted.

[0048] It is stated that the attached drawings may be partially exaggerated or simplified for the purpose of explaining the configuration, operation, and operating principles of the technology, as well as for ease of understanding and clarity of the technology, and that each component in the drawings does not exactly correspond to the actual size and shape.

[0049] In addition, the term "and / or" in this specification means a combination of multiple related described items or includes any of the multiple related described items, and when a part is said to include a certain component, it means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0050] In other words, terms such as "comprising" and "having" as set forth in this specification mean that there is a feature, number, step, process, operation, component, part, or combination thereof, and should be understood as not excluding the existence or addition of one or more other features, numbers, steps, processes, operations, components, parts, or combinations thereof.

[0051] Meanwhile, the terms "part" and "unit" used in the present invention refer to a unit or module form that performs a role in processing at least one intended function or a certain operation in a device or system, and this can be implemented mechanically or electronically, such as through means including hardware, software, or a combination of hardware and software, or a device or assembly capable of performing independent operations.

[0052] Furthermore, terms such as top, bottom, upper surface, lower surface, or upper, lower, upper side, lower side, front / rear, left / right, etc. used in the present invention are used for convenience to distinguish relative positions or explain directions of movement for each component. For example, the upper part of a drawing may be named or referred to as the upper part and the lower part as the lower part, and the length direction may be named or referred to as the front / rear direction and the width direction as the left / right direction.

[0053] In addition, terms such as "first," "second," etc. used in the present invention may be used to describe various components. That is, terms such as "first," "second," etc. may be used solely for the purpose of distinguishing one component from another.

[0054] A speaker device according to an embodiment of the present invention comprises a speaker unit (100) and an enclosure (200) as shown in FIGS. 1 to 4.

[0055] The speaker unit (100) is configured to include a vibrating system (diaphragm, dust cap, voice coil) that vibrates and moves, a magnetic system (magnet, pole piece, plate, yoke) which is a magnetic circuit that generates a magnetic field, and a support system (edge, damper, basket) that absorbs vibration energy generated from the diaphragm (140).

[0056] And the magnetic circuit (110) constituting the speaker unit (100) is formed in an external shape and is connected to the back of the basket (120).

[0057] The magnetic circuit (110) is configured to include first and second plates (111)(112), a yoke (113), and a magnet (114).

[0058] The first and second plates (111) (112) are arranged at regular intervals from front to back.

[0059] And the first and second plates (111) (112) are formed in a flat shape.

[0060] The yoke (113) is formed protruding from the front center portion of the second plate (112).

[0061] And the yoke (113) is formed integrally with the second plate (112) in the shape of a cylinder.

[0062] That is, the first and second plates (111)(112) and the yoke (113) are formed of a dielectric material such as metal to control the flow of the magnetic field formed from the magnet (114) and at the same time enhance the strength of the magnetic field.

[0063] The magnet (114) is mounted between the first and second plates (111) (112) with the yoke (113) inserted in the center to generate a magnetic field.

[0064] Here, the magnetic circuit (110) can be mounted by attaching a damper (130) to the front of the mounting lug (230) and then inserting the magnetic circuit (110) into the inside of the mounting lug (230).

[0065] In another form, the magnetic circuit (110) may be mounted by an insert injection method in which it is inserted into a mold and then integrally molded with a mounting lug (230) when manufacturing the upper cabinet (201) and lower cabinet (202) of the enclosure (200) by injection molding.

[0066] The basket (120) serves as a frame that stably supports the diaphragm (140), voice coil, edge, etc.

[0067] That is, the basket (120) is inserted into the mounting hole (210) of the enclosure (200), which is divided vertically into two parts by the upper cabinet (201) and the lower cabinet (202).

[0068] Here, the basket (120) can be made of lightweight aluminum die-casting or the like to minimize resonance and improve sound quality.

[0069] The damper (130) controls the movement of the diaphragm (140) to enable accurate sound reproduction.

[0070] That is, the damper (130) is attached to the front of the magnetic circuit (110).

[0071] The diaphragm (140) plays the role of reproducing sound by vibrating the air in the atmosphere.

[0072] The enclosure (200) is made of a box shape that houses the speaker unit (100).

[0073] And a mounting hole (210) for mounting a basket (120) is formed on the front of the enclosure (200), and through holes (220) are drilled in the vertical direction on both the upper and lower sides so that the upper and lower sides of the magnet (114) constituting the magnetic circuit (110) are exposed to the outside.

[0074] Additionally, a tubular mounting lug (230) for mounting a magnetic circuit (110) is integrally formed on the inside of the through hole (220).

[0075] And the enclosure (200) is formed by dividing it into an upper cabinet (201) and a lower cabinet (202).

[0076] The upper cabinet (201) has an upper mounting lug (231) integrally formed on the inside of the through hole (220) for mounting the upper part of the magnetic circuit (110).

[0077] The lower cabinet (202) has a lower mounting lug (232) integrally formed on the inside of the through hole (220) for mounting the lower part of the magnetic circuit (110).

[0078] In addition, on the flat inner surfaces of the upper cabinet (201) and the lower cabinet (202), a thin, long plate-shaped rib (203) may be integrally formed at a right angle to the cross-section to increase rigidity and reinforce strength.

[0079] [Operating Principle and Function]

[0080] In the speaker device according to the embodiment of the present invention configured as described above, the upper and lower surfaces of the magnet (114) constituting the magnetic circuit (110) of the speaker unit (100) are mounted on the mounting lug (230) inside the enclosure (200) while being exposed to the outside through the through hole (220) of the enclosure (200), so the size of the magnet (114) can be formed as large as possible within the predetermined thickness of the enclosure (200), or the thickness of the enclosure (200) can be reduced based on the magnet (114) of a predetermined size.

[0081] As a result, the magnetic flux density of the magnet (114) is relatively increased, which not only improves sound quality performance but also minimizes the thickness of the enclosure (200), thereby enabling a slim design.

[0082] In addition, ribs (203) are formed in a regular pattern on the thin and flat inner surfaces of the upper cabinet (201) and the lower cabinet (202), thereby minimizing the thickness of the enclosure (200) while increasing its strength, and thereby enabling a robust and slim design for the speaker device, as well as reducing resonance to enhance the impact of the bass sound.

[0083] A speaker device according to another embodiment of the present invention comprises a speaker unit (100) and an enclosure (200), as shown in FIGS. 5 and 6.

[0084] The four corner portions of the first and second plates (111) (112) constituting the magnetic circuit (110) of the speaker unit (100) are formed as bevels (111a) that are cut at an angle.

[0085] And the damper (130) has a rim (131) attached to the front of the mounting lug (230) to form the largest possible size, and is attached to the front of the magnetic circuit (110) using the rim (131).

[0086] In addition, unlike the above-described embodiment, the speaker unit (100) is directly inserted and coupled to the front of the enclosure (200) through a mounting hole (210) drilled in the lower cabinet (202) without a basket (120).

[0087] The left and right edge surfaces of the upper cabinet (201) and lower cabinet (202) constituting the enclosure (200) facing each other are formed as corresponding inclined surfaces.

[0088] In addition, on the front and rear surfaces of the upper mounting lug (231) and the lower mounting lug (232), a fixing groove (233) is formed to allow the four sides (111a) of the first and second plates (111) (112) to be stably attached and firmly secured without shaking.

[0089] In this invention, components related to a speaker device according to another embodiment of the present invention that have the same or similar functional effects as those in the above-described embodiment are given the same reference numerals, and a repetitive and detailed description thereof is omitted.

[0090] [Other forms for carrying out the invention]

[0091] A speaker device according to another embodiment of the present invention comprises a speaker unit (100) and an enclosure (200), as shown in FIGS. 7 and 8.

[0092] The four corner portions of the first and second plates (111) (112) constituting the magnetic circuit (110) of the speaker unit (100) are formed as bevels (111a) that are cut at an angle.

[0093] That is, the slope (111a) is formed in a multi-stage or stepped shape having a step in the thickness direction of the first and second plates (111)(112).

[0094] The left and right edge surfaces of the upper cabinet (201) and lower cabinet (202) constituting the enclosure (200) facing each other are formed to interlock in a multi-stage or stepped shape.

[0095] In addition, on the front and rear surfaces of the upper mounting lug (231) and the lower mounting lug (232), a fixing groove (233) is formed to allow the four sides (111a) of the first and second plates (111) (112) to be stably attached and firmly secured without shaking.

[0096] Here, the fixing groove (233) can be formed in a stepped shape having multiple grooves, corresponding to the shape of the slope (111a) of the first and second plates (111) (112).

[0097] In this invention, components related to a speaker device according to another embodiment of the present invention that have the same or similar functional effects as those in the above-described embodiment are given the same reference numerals, and a repetitive and detailed description thereof is omitted.

[0098] Meanwhile, it is obvious to those skilled in the art that the present invention is not limited by the embodiments described above and the attached drawings, and that it can be modified and applied in various ways not exemplified within the scope of the technical concept of the present invention, as well as widely applied by substituting each component and changing to equivalent alternative embodiments.

[0099] Therefore, content related to modifying and applying the technical features of the present invention should be interpreted as being included within the technical concept and scope of the present invention.

[0100] The speaker device according to an embodiment of the present invention is designed to improve sound quality performance while slimming the thickness of the enclosure and increasing the strength of the enclosure to reduce resonance and obtain a bass impact, and is therefore an invention that is practically implementable and industrially applicable.

Claims

1. A speaker unit having an external magnetic circuit coupled to the rear of a basket or diaphragm; and An enclosure formed in a box shape for mounting and housing the above speaker unit, having a mounting hole formed on the front for mounting the basket or diaphragm, through holes formed on both the upper and lower sides so that the upper and lower sides of the magnet constituting the magnetic circuit are exposed to the outside, and a tubular mounting lug integrally formed inside the through holes for mounting the magnetic circuit; A speaker device including 2. In Paragraph 1, The above magnetic circuit is, The magnet is mounted between the first and second plates, and The above enclosure is, A speaker device formed by dividing into an upper cabinet having an upper mounting lug for mounting the upper part of the magnetic circuit inside the through hole, and a lower cabinet having a lower mounting lug for mounting the lower part of the magnetic circuit inside the through hole.

3. In Paragraph 2, A speaker device in which the left and right edge surfaces facing each other of the upper cabinet and the lower cabinet are formed to interlock in an inclined or stepped shape.

4. In Paragraph 2, The four corner portions of the first and second plates are formed as beveled surfaces, and A speaker device having fixing grooves formed on the front and rear surfaces of the upper mounting lug and the lower mounting lug, respectively, on which the four sides of the first and second plates are seated.

5. In Paragraph 4, A speaker device in which the above-mentioned slope is formed in a stepped shape having a step difference in the thickness direction of the first and second plates, and the above-mentioned fixing groove is formed in a stepped shape having multiple grooves corresponding to the above-mentioned slope.

6. In Paragraph 2, A speaker device having a thin, long plate-shaped rib integrally formed perpendicular to the cross-section of each of the upper cabinet and the lower cabinet to increase rigidity and reinforce strength on the thin, flat inner surfaces thereof.

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