CN2264456Y - Planet-type radial magnet speaker - Google Patents

Abstract

The utility model relates to a star-shaped radial magnet speaker. A plurality of small magnets which are radially arranged, an inner magnetic conductivity ring, an outer magnetic conductivity cover, a magnetic conductivity middle column, a basin frame, a corrugated support chip, a vibrating diaphragm, a voice coil, a dust-proof cover, a pressure ring, and an elastic edge are stuck to form the utility model, wherein, the small magnets, the inner magnetic conductivity ring, and the outer magnetic conductivity cover or the magnetic conductivity middle column are stuck. The outer magnetic conductivity cover is stuck with the basin frame. The magnetic conductivity middle column is positioned at the center of the inner magnetic conductivity ring or is stuck with the magnets. The basin frame is stuck with the outer magnetic conductivity cover, the corrugated chip, the elastic edge and the pressure ring. The voice coil is positioned at the center of space of the magnetic conductivity middle column and the inner magnetic conductivity ring and is stuck with the corrugated chip and the vibrating diaphragm. The vibrating diaphragm is stuck with the basin frame and is pressed by the pressure ring through the elastic edge. The speaker has the advantages of good sound quality, high sensitivity, no magnetic properties leakage, and easy production.

Description

Star-like radial magnet loud speaker

The utility model is a kind of star-like radial magnet loud speaker, belongs to the electroacoustic techniques field.

Existing loud speaker kind is a lot, and most widely used is coil-moving speaker.But common commercially available coil-moving speaker adopts axial magnet, forms the required radial magnetic field of voice coil loudspeaker voice coil through the magnetic conductor guiding again, and its magnetic field intensity is along voice coil loudspeaker voice coil height skewness, and is non-linear big, thereby causes the distortion of loud speaker sounding serious.Though occurred push-pull type, the coil-moving speaker of magnetic-type radially in recent years, the magnetic pole orientation of its magnet can directly act on voice coil loudspeaker voice coil for radially, the little and efficient height of magnetic energy loss, add even, the good linearity of the magnetic field intensity that distributes along the voice coil loudspeaker voice coil height, make loudspeaker distortions little.Though the radial magnet loud speaker is superior, when producing, the width of cloth of its monoblock magnet is penetrated moulding and the width of cloth and is penetrated to magnetize and but have new problem and difficulty.

The purpose of this utility model be exactly for solve and overcome the radial magnet loud speaker in process of production the width of cloth of its monoblock magnet penetrate moulding and the width of cloth and penetrate problem and the difficulty that magnetizes and exist, research and design a kind of with polylith be scattered in that diametric small magnet substitutes the monoblock radial magnet, distortion is little, tonequality good, not leakage field, the easy star-like radial magnet loud speaker of production.

The utility model is realized by following structure technology scheme: the structural representation of star-like radial magnet loud speaker such as Fig. 1, shown in Figure 2, it is by polylith small magnet 1 radially, interior magnetic guiding loop 2, outer magnetism-guiding hood 3, magnetic conduction center pillar 4, basin frame 5, ripple props up sheet 6, vibrating diaphragm 7, voice coil loudspeaker voice coil and skeleton 8 thereof, dust cover 9, pressure ring 10, elastic edge 11 common bonding connections constitute, its interconnected relationship is: radially small magnet 1 and interior magnetic guiding loop 2, outer magnetism-guiding hood 3 mutual bonding connections or radially small magnet 1 and interior magnetic guiding loop 2, magnetic conduction center pillar 4 mutual bonding connections, outer magnetism-guiding hood 3 and small magnet 1 radially, the 5 bonding connections of basin frame or only with basin frame 5 bonding connections, magnetic conduction center pillar 4 is positioned at the center of magnetic guiding loop 2 or magnetic conduction center pillar 4 and small magnet 1 mutual bonding connection radially, basin frame 5 and outer magnetism-guiding hood 3, ripple props up sheet 6, elastic edge 11, pressure ring 10 bonding connections, ripple props up sheet 6 and basin frame 5, speech coil framework 8 bonding connections, vibrating diaphragm 7 and voice coil loudspeaker voice coil and skeleton 8 thereof, dust cover 9 bonding connections, and be adhered on the basin frame 5 by elastic edge 11, voice coil loudspeaker voice coil is positioned between magnetic conduction center pillar 4 and the interior magnetic guiding loop 2 crack central authorities and props up sheet 6 with ripple, vibrating diaphragm 7 bondings, voice coil loudspeaker voice coil and skeleton 8 thereof place the inner face of small magnet 1 radially and form external magnetic field or voice coil loudspeaker voice coil and skeleton 8 thereof and place the periphery of small magnet 1 radially and form internal magnetic field, dust cover 9 places the top and 7 bonding connections of vibrating diaphragm of voice coil loudspeaker voice coil and skeleton 8, elastic edge 11 is connected with the top of basin frame 5 is bonding, pressure ring 10 press stick at elastic edge 11 above.Its action principle is identical with the action principle of the radial magnet loud speaker of present existing radial magnetic field orientation, the radial magnetic field of the radiation-like in this loudspeaker voice coil can satisfy the needs of cylindrical voice coil loudspeaker voice coil radial magnetic field orientation, star-like radial magnet loud speaker also has external magnetic type and internal magnetization dual mode, in being in voice coil loudspeaker voice coil, magnet is internal magnetization, as shown in Figure 2; Outside being in voice coil loudspeaker voice coil, magnet is external magnetic type, as shown in Figure 1.The magnetic field of the radially small magnet of star-like radial magnet loud speaker does not need just can directly act on the voice coil loudspeaker voice coil through the magnetic conductor guiding yet, so the enhancing of the magnetic field intensity of voice coil loudspeaker voice coil, and voice coil loudspeaker voice coil increases the thrust of vibrating diaphragm thereupon, and acoustic pressure increases, and loudspeaker sensitivity improves.

The utility model is compared with existing coil-moving speaker, following advantage and beneficial effect are arranged: (1) makes voice coil loudspeaker voice coil strengthen promotion (exciting) power and the control of vibrating diaphragm because radial magnetic field of the present utility model directly acts on voice coil loudspeaker voice coil, and loss is few, acoustic pressure increases, and sensitivity improves; (2) the voice coil loudspeaker voice coil short transverse magnetic field intensity of this loud speaker is even, i.e. field intensity good linearity, so the good linearity of voice coil loudspeaker voice coil exciting force makes the fidelity height of this diaphragm of loudspeaker sounding, loudspeaker distortions is few; (3) this loud speaker is radially arranged the formation radial magnetic field with many small magnets, makes the production of radial magnet identical with axial magnet, but has obtained the effect of radial magnet loud speaker, and the production cost of magnet is reduced; (4) this star-like radial magnet loud speaker, does not leak in magnetic field, and the loud speaker magnetic head is leakage field not, makes it can be applicable to the equipment that requires no magnetic disturbance.

Figure of description is further specified as follows: Fig. 1 is external magnetic type six star-like radial magnet loadspeaker structure schematic diagrames, and wherein (a) is its structure cutaway view, and the G-G that (b) is this loud speaker magnetic head Fig. 1 (a) is to cutaway view; Fig. 2 is internal magnetization six star-like radial magnet loadspeaker structure schematic diagrames, and wherein: (c) be its structure cutaway view, the A-A that (d) is this loud speaker magnetic head Fig. 1 (c) is to cutaway view.Among each figure: 1 is small magnet radially, and 2 is interior magnetic guiding loop, and 3 is outer magnetism-guiding hood, and 4 is the magnetic conduction center pillar, 5 is the basin frame, and 6 for ripple props up sheet, and 7 is vibrating diaphragm, 8 is voice coil loudspeaker voice coil and skeleton thereof, and 9 is dust cover, and 10 is pressure ring, 11 is elastic edge, and S is the magnet South Pole, and N is the magnet arctic, φ A is the loud speaker bore, and φ B is the magnetic head diameter, and φ E is a voice coil diameter, H is the loud speaker height, and h is the magnetic head height, and l is the radial magnetic field height.

Execution mode of the present utility model can be as follows: enforcement manufacturing of the present utility model is comparatively simple, the method for manufacturing of it and existing coil-moving speaker is basic identical, as long as by Fig. 1, the shown in Figure 2 design, and assemble bonding connection by the interconnected relationship of described each parts of top specification, and just can manufacture out the utility model preferably---star-like radial magnet loud speaker.What need pay special attention in the implementation process is that basin frame 5 will use non-magnet material, otherwise can make radial magnet " short circuit ".Fig. 1 also is the production assembling instance graph of six star-like radial magnet loud speakers of 6 inches half bores, and its size (mm) is: φ A=170, φ B=75, φ E=26, H=86, h=36, l=20.

Claims (1)

1, a kind of star-like radial magnet loud speaker, it is characterized in that: it is by polylith small magnet (1) radially, interior magnetic guiding loop (2), outer magnetism-guiding hood (3), magnetic conduction center pillar (4), basin frame (5), ripple props up sheet (6), vibrating diaphragm (7), voice coil loudspeaker voice coil and skeleton thereof (8), dust cover (9), pressure ring (10), the common bonding connection of elastic edge (11) constitutes, its interconnected relationship is: radially small magnet (1) and interior magnetic guiding loop (2), the bonding connection of outer magnetism-guiding hood (3) or radially small magnet (1) and interior magnetic guiding loop (2), the bonding connection of magnetic conduction center pillar (4), outer magnetism-guiding hood (3) and small magnet (1) radially, the bonding connection of basin frame (5) or only with basin frame (5) bonding connection, magnetic conduction center pillar (4) is positioned at the center of magnetic guiding loop (2) or magnetic conduction center pillar (4) and small magnet (1) bonding connection radially, basin frame (5) and outer magnetism-guiding hood (3), ripple props up sheet (6), elastic edge (11), the bonding connection of pressure ring (10), ripple props up sheet (6) and basin frame (5), the bonding connection of speech coil framework (8), vibrating diaphragm (7) and speech coil framework (8), the bonding connection of dust cover (9), and be bonded on the basin frame (5) by elastic edge (11), voice coil loudspeaker voice coil is positioned between magnetic conduction center pillar (4) and the interior magnetic guiding loop (2) crack central authorities and props up sheet (6) with ripple, vibrating diaphragm (7) is bonding, voice coil loudspeaker voice coil and skeleton thereof (8) place the inner face of small magnet (1) radially and form external magnetic field or voice coil loudspeaker voice coil and skeleton (8) thereof and place the periphery of small magnet (1) radially and form internal magnetic field, dust cover (9) places the top and bonding connection of vibrating diaphragm (7) of voice coil loudspeaker voice coil and skeleton (8), the bonding connection of top of elastic edge (11) and basin frame (5), pressure ring (10) is pressed and is sticked at above the elastic edge (11).

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