CN219627888U - High pitch unit and loudspeaker - Google Patents

Abstract

The utility model relates to a high-pitched unit and a loudspeaker, which comprises a washer, wherein an assembly groove is formed in one side of the washer, an aluminum ring is adhered in the assembly groove, the aluminum ring is in a circular ring shape, the inner aperture of the aluminum ring is smaller than the inner aperture of the assembly groove, a pole core is arranged in an inner aperture of the aluminum ring, magnetic steel is adhered to the bottoms of the aluminum ring and the washer, the pole core is a double-layer cylinder, the diameter of an upper cylinder is larger than that of a lower cylinder, a connecting surface is formed between the upper cylinder and the lower cylinder due to the difference of the diameters, the pole core is in contact with the upper surface of the aluminum ring through the connecting surface, a gap is formed between the outer peripheral surface of the upper cylinder and the inner aperture surface of the washer, a sound film is inserted in the gap, a phase cone is arranged on the sound film, a front cover is fixed on the top of the sound film, and a T iron seat is adhered to the bottoms of the pole core and the magnetic steel.

Description

High pitch unit and loudspeaker

Technical Field

The utility model relates to the technical field of sound, in particular to a high-pitched sound unit and a loudspeaker using the same.

Background

The car tweeter is a tweeter unit in a speaker, which plays a role of reproducing a high frequency signal output from a frequency divider. Speakers that play primarily high frequency signals are called tweeters. The high-pitch loudspeaker is used for leading the upper limit frequency of high-frequency sound reproduction to reach the upper limit frequency of human ear hearing of 20kHz, so that the caliber is smaller and the sound membrane is tougher. Compared with the low-pitch and medium-pitch loudspeakers, the performance of the high-pitch loudspeaker is required to be high in the upper limit of the reproduction frequency band and large in the input capacity in addition to the same as the medium-pitch unit. The conventional tweeter has various forms such as cone shape, flat plate shape, dome shape, and band capacitor shape.

The magnetic circuit structure of the automobile high-pitched sound unit produced in the market at present is provided with an aluminum ring or is completely free of the aluminum ring. When the high-pitch unit without the aluminum coil works, the position of the voice coil wire in the magnetic field is changed continuously, so that induced electromotive force opposite to the current direction in the voice coil wire can be generated, and the movement of the voice coil is blocked, so that distortion is generated. However, the aluminum has good heat conductivity, so that heat is concentrated near the aluminum coil, which is unfavorable for heat dissipation of the voice coil, and high-pitched power is reduced.

Disclosure of Invention

In order to solve the problems, the utility model provides a high-pitch unit and a loudspeaker which can reduce distortion and have good heat dissipation performance.

In order to achieve the above purpose, the high-pitched unit designed by the utility model comprises a washer, wherein one side of the washer is provided with an assembly groove, an aluminum ring is adhered in the assembly groove, the aluminum ring is in a ring shape, the inner aperture of the aluminum ring is smaller than the inner aperture of the assembly groove, a pole core is arranged in the inner aperture of the aluminum ring, magnetic steel is adhered to the bottoms of the aluminum ring and the washer, the pole core is arranged in a double-layer cylinder, the diameter of an upper cylinder is larger than that of a lower cylinder, a connecting surface is formed between the upper cylinder and the lower cylinder due to the difference of the diameters, the pole core is in contact with the upper surface of the aluminum ring through the connecting surface, a gap is reserved between the outer peripheral surface of the upper cylinder and the inner aperture of the washer, a sound membrane is inserted in the gap, a phase cone is arranged on the sound membrane, and a front cover is fixed on the top of the pole core and a T iron seat is adhered to the bottom of the magnetic steel. The structure is characterized in that an aluminum ring is arranged at the bottom of the washer, the aluminum ring is connected with a pole core, the pole core and a T iron seat are fixed to form T iron, the arrangement structure of the aluminum ring can prevent an induction electromotive force opposite to the current direction in the voice coil wire from being generated by the voice coil wire when a high-pitched unit works, and heat accumulated on the aluminum ring can be emitted through the pole core and the T iron seat, so that high-pitched power is increased.

The diameter of the assembly groove is matched with the outer diameter of the aluminum ring, and the depth of the assembly groove is the thickness of the aluminum ring. The structure is characterized in that the aluminum ring with the same depth as the assembly groove is flush with the bottom surface of the washer after being assembled and fixed, so that the washer and the magnetic steel do not have larger gaps after being assembled, better structural integrity is realized, the high-pitched unit has better sounding effect, and the coaxiality of the polar core and the washer is still maintained under the condition that the matched size of the washer and the magnetic steel reduces the precision requirement of the production process.

The further scheme is that the inner diameter of the aluminum ring is matched with the outer diameter of the lower cylinder on the pole core. The structure is characterized in that the coaxiality of the washer and the pole core can be ensured by the inner diameter of the aluminum ring and the lower cylinder, the assembly process is more convenient and quick, and the parts can be coaxially assembled by only penetrating the pole core into the aluminum ring from top to bottom.

It should be noted that one surface of the sound membrane facing the aluminum ring is provided with a ring which can be inserted into the gap, and the other surface of the sound membrane is a wavy vibration surface. The sound film and the voice coil cooperate to make the high-quality audio frequency emitted by the high-pitch unit.

It is more worth mentioning that the protecgulum includes the horn mouth and is located the assembly portion of horn mouth lower part, after the assembly is accomplished the horn mouth bottom is the phase cone, the protecgulum passes through assembly portion and sound membrane peripheral bolt hole to be fixed. The sound wave direction can be oriented through the horn mouth, so that a user can obtain better hearing.

Still further scheme is be equipped with the screw hole on T iron seat, utmost point core and the phase cone, after washer, aluminium circle, T iron seat, utmost point core and sound membrane assembly are accomplished, wear to establish the screw from T iron seat bottom and fix the phase cone bolt, there is the clearance between phase cone and the sound membrane. The structure is characterized in that the T iron seat and the pole core can be fixed into T iron by bolts, and the phase cone can be fixed, and the gap between the phase cone and the sound membrane can prevent the sound membrane from being influenced by the phase cone during vibration.

A loudspeaker comprising the tweeter unit described above.

Compared with the prior art, the high-pitch unit designed by the utility model has the advantages that the aluminum ring is arranged at the bottom of the washer and is connected with the pole core, so that the aluminum ring not only limits the displacement of the voice coil wire in a magnetic field, but also can be connected with the pole core to increase heat dissipation, meanwhile, the assembly difficulty is reduced, and the coaxiality of the washer and the pole core can be effectively ensured, namely, the coaxiality of the washer and a T-shaped iron structure is improved. In summary, the utility model has simple structure and arrangement, and has good heat dissipation capability and can reduce distortion.

Drawings

FIG. 1 is a front view of embodiment 1 of the present utility model;

FIG. 2 is an exploded view of example 1 of the present utility model;

fig. 3 is a cross-sectional view of embodiment 1 of the present utility model.

Wherein: washer 1, assembly groove 2, T iron seat 3, magnet steel 4, junction surface 5, gap 6, sound membrane 7, phase cone 8, upper cylinder 9, lower cylinder 10, aluminum ring 11, pole core 12, protecgulum 13, horn mouth 14, assembly portion 15, ring 16.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1

As shown in fig. 1 and fig. 2, the treble unit described in this embodiment includes a washer 1, an assembly groove 2 is formed on one side of the washer, an aluminum ring 11 is bonded in the assembly groove 2, the aluminum ring 11 is in a ring shape, the inner hole diameter of the aluminum ring 11 is smaller than that of the assembly groove 2, a pole core 12 is arranged in the inner hole of the aluminum ring 11, magnetic steel 4 is bonded at the bottom of the aluminum ring 11 and the washer 1, the pole core 12 is a double-layer cylinder, the diameter of an upper cylinder 9 is larger than that of a lower cylinder 10, a connecting surface 5 is formed between the upper cylinder and the lower cylinder due to the difference of the diameter, the pole core 12 is in contact with the upper surface of the aluminum ring 11 through the connecting surface 5, a gap 6 exists between the outer peripheral surface of the upper cylinder 9 and the inner hole surface of the washer 1, a sound membrane 7 is inserted in the gap 6, a phase cone 8 is arranged on the sound membrane 7, a front cover 13 is also fixed on the top of the sound membrane 7, and a T iron seat 3 is bonded at the bottom of the pole core 12 and the magnetic steel 4.

As shown in fig. 3, the diameter of the assembly groove 2 is matched with the outer diameter of the aluminum ring 11, and the depth of the assembly groove 2 is equal to the thickness of the aluminum ring 11.

As shown in fig. 3, the inner diameter of the aluminum ring 11 is matched with the outer diameter of the lower cylinder 10 on the pole core 12.

As shown in fig. 3, a ring which can be inserted into the gap 6 is arranged on one surface of the sound film 7 facing the aluminum ring 11, and the other surface of the sound film 7 is a wavy vibration surface.

As shown in fig. 2, the front cover 13 includes a bell mouth 14 and an assembling portion 15 located at a lower portion of the bell mouth 14, the bottom of the bell mouth 14 is provided with a phase cone 8 after the assembling is completed, and the front cover 13 is fixed with a bolt hole at the periphery of the sound membrane 7 through the assembling portion 15.

As shown in fig. 3, threaded holes are formed in the T-shaped iron seat 3, the pole core 12 and the phase cone 8, after the washer 1, the aluminum ring 11, the T-shaped iron seat 3, the pole core 12 and the acoustic membrane 7 are assembled, screws are inserted from the bottom of the T-shaped iron seat 3 to fix the phase cone 8 by bolts, and a gap exists between the phase cone 8 and the acoustic membrane 7.

The gap is 1mm, and other data may be used, and the specific distance is not limited herein.

Example 2

Embodiment 2 provides a horn including the tweeter unit of embodiment 1 described above.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. The utility model provides a high sound unit, includes washer (1), has seted up mounting groove (2) on its one side, its characterized in that, mounting groove (2) internal bond has aluminium circle (11), aluminium circle (11) are the ring form, and the internal bore diameter of aluminium circle (11) is less than mounting groove (2), be equipped with utmost point core (12) in the hole of aluminium circle (11), aluminium circle (11) and washer (1) bottom bonding have magnet steel (4), utmost point core (12) are double-deck cylinder setting, and its upper cylinder (9) diameter is greater than lower cylinder (10), is formed with connecting face (5) because of diameter size difference between the upper and lower cylinder, extremely core (12) are through connecting face (5) and aluminium circle (11) upper surface contact setting, there is gap (6) between upper cylinder (9) outer peripheral face and washer (1) internal bore face, the interpolation of gap (6) is equipped with sound membrane (7), be equipped with phase cone (8) on sound membrane (7), sound membrane (7) top is still fixed with magnet steel (13) and is glued in utmost point core (3) bottom (3).

2. The treble unit according to claim 1, characterized in that the diameter of the fitting groove (2) is matched with the outer diameter of the aluminum ring (11), and the depth of the fitting groove (2) is the thickness of the aluminum ring (11).

3. A treble unit according to claim 1, characterized in that the inner diameter of the aluminium ring (11) is matched to the outer diameter of the lower cylinder (10) on the pole core (12).

4. The high-pitch unit according to claim 1, wherein a ring (16) capable of being inserted into the slit (6) is arranged on one surface of the sound membrane (7) facing the aluminum ring (11), and the other surface of the sound membrane (7) is a wavy vibration surface.

5. The high-pitched unit according to claim 1, wherein the front cover (13) comprises a horn mouth (14) and an assembling part (15) positioned at the lower part of the horn mouth (14), the center of the horn mouth (14) is a phase cone (8) after the assembling is finished, and the front cover (13) is fixed with the bolt holes at the periphery of the sound membrane (7) through the assembling part (15).

6. The high-pitch unit according to claim 1, wherein threaded holes are formed in the T-iron seat (3), the pole core (12) and the phase cone (8), and after the washer (1), the aluminum ring (11), the T-iron seat (3), the pole core (12) and the sound membrane (7) are assembled, screws are inserted from the bottom of the T-iron seat (3) to fix the phase cone (8) by bolts, and a gap exists between the phase cone (8) and the sound membrane (7).

7. A loudspeaker, characterized in that it comprises a tweeter unit according to any one of the preceding claims 1-6.