CN211128162U - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
CN211128162U
CN211128162U CN201922353061.7U CN201922353061U CN211128162U CN 211128162 U CN211128162 U CN 211128162U CN 201922353061 U CN201922353061 U CN 201922353061U CN 211128162 U CN211128162 U CN 211128162U
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Prior art keywords
magnet
pole
voice coil
gap
diaphragm
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CN201922353061.7U
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Chinese (zh)
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李世煌
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李世煌
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Abstract

The utility model provides a loudspeaker, its characterized in that includes: the magnetic circuit system is used for driving the first vibrating diaphragm and the second vibrating diaphragm to vibrate; the magnetic circuit system comprises a first magnetic circuit unit and a second magnetic circuit unit; the first magnetic circuit unit comprises a first magnet and a first voice coil, the second magnetic circuit unit comprises a second magnet and a second voice coil, the second magnet is of an annular structure, the first magnet is arranged in the ring of the second magnet, and a gap is formed between the first magnet and the second magnet; the gap is internally provided with T-shaped iron which divides the gap into a first gap and a second gap, the first gap is formed by the inner wall of the T-shaped iron and the outer wall of the first magnet, and the second gap is formed by the outer wall of the T-shaped iron and the inner wall of the second magnet; the first voice coil is arranged in the first gap, and the second voice coil is arranged in the second gap; the first voice coil drives the first vibrating diaphragm to vibrate, and the second voice coil drives the second vibrating diaphragm to vibrate.

Description

Loudspeaker
Technical Field
The utility model relates to a sound generating unit especially relates to speaker.
Background
A set of magnetic circuit system is generally arranged in a loudspeaker of the traditional terminal equipment, the magnetic circuit system comprises a magnet and a voice coil, and under the action of a magnetic field formed by the magnet, the voice coil generates driving force to drive a vibrating diaphragm to vibrate, so that the loudspeaker has enough sound pressure level, and the normal work of the loudspeaker is ensured. The speaker inevitably produces the vibration because of the vibration of vibrating diaphragm at the course of the work, and then drives the box vibration of audio amplifier, has great influence to tone quality. Therefore, in order to eliminate vibration in the traditional sound box, the sound box is made thick and heavy, and the light and thin sound box is difficult to have good bass and cannot vibrate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem that a resonance that speaker produced because of the vibrating diaphragm vibration can be eliminated to the speaker is provided.
In order to solve the technical problem, the utility model provides a loudspeaker, which comprises a first vibrating diaphragm and a second vibrating diaphragm which are arranged in a mirror image manner, and a magnetic circuit system for driving the first vibrating diaphragm and the second vibrating diaphragm to vibrate;
the magnetic circuit system comprises a first magnetic circuit unit and a second magnetic circuit unit; the first magnetic circuit unit comprises a first magnet and a first voice coil, the second magnetic circuit unit comprises a second magnet and a second voice coil, the second magnet is of an annular structure, the first magnet is arranged in the ring of the second magnet, and a gap is formed between the first magnet and the second magnet;
a T-shaped iron which divides the gap into a first gap and a second gap is arranged in the gap, the first gap is formed by the inner wall of the T-shaped iron and the outer wall of the first magnet, and the second gap is formed by the outer wall of the T-shaped iron and the inner wall of the second magnet; the first voice coil is arranged in the first gap, and the second voice coil is arranged in the second gap;
the first voice coil drives the first vibrating diaphragm to vibrate, and the second voice coil drives the second vibrating diaphragm to vibrate.
In a preferred embodiment: the N pole of the first magnet and the S pole of the second magnet are in the same direction, and the S pole of the first magnet and the N pole of the second magnet are in the same direction.
In a preferred embodiment: the T-shaped iron is divided into a first T-shaped iron and a second T-shaped iron;
the N pole of the first magnet is connected with the N pole of the second magnet through the first T-shaped iron, and the S pole of the first magnet is connected with the second T-shaped iron; the first voice coil extends out of the first gap along the direction of the S pole of the first magnet and is connected with the first diaphragm, and the second voice coil extends out of the second gap along the direction of the S pole of the second magnet and is connected with the second diaphragm.
In a preferred embodiment: the protruding end of the first T-shaped iron extends into the second voice coil, and the non-protruding end of the second T-shaped iron extends into the first voice coil.
In a preferred embodiment: and the S pole of the second magnet is provided with a washer sheet.
In a preferred embodiment: the N pole of the first magnet is connected with the N pole of the second magnet through the T-shaped iron, and the S pole of the first magnet is provided with a first washer;
the first voice coil extends out of the first gap along the direction of the S pole of the first magnet and is connected with the first diaphragm, and the second voice coil extends out of the second gap along the direction of the S pole of the second magnet and is connected with the second diaphragm; and the S pole of the second magnet 5 is connected with a second washer.
In a preferred embodiment: the protruding end of the T-shaped iron extends into the second voice coil, and the first washer extends into the first voice coil.
In a preferred embodiment: the loudspeaker also comprises a first frame and a second frame which are arranged in a mirror image manner, the first vibrating diaphragm is arranged at the edge of the first frame, and the second vibrating diaphragm is arranged at the edge of the second frame;
the first basin frame is communicated with one opposite side of the second basin frame, and the magnetic circuit system is arranged at the communication position of the first basin frame and the second basin frame.
In a preferred embodiment: the vibration wave generator further comprises an elastic wave, and the first vibrating diaphragm and the second vibrating diaphragm are spherical vibrating diaphragms;
the first vibrating diaphragm and the second vibrating diaphragm are connected to the edge of the first basin frame or the second basin frame through the folding ring;
the elastic wave and the spherical vibrating diaphragm are coaxially arranged and are positioned above the folding ring at a certain distance; the bullet ripples is provided with the trompil of stepping down in axle center department, the side fixed connection of trompil and spherical vibrating diaphragm of stepping down to expose partial spherical vibrating diaphragm.
Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:
the utility model provides a loudspeaker is the loudspeaker design of a dual magnetic circuit two sound basin mirror image vibrations, utilizes two vibration system mirror image vibrations of electric signal drive to can offset the inertia of vibration that is brought by the sound basin vibration almost completely, when obtaining the low frequency output of very ideal, can let the audio amplifier can not vibrate, thereby eliminate because the vibration of box can bring the distortion with the vibration synthesis of speaker, it is especially important to audio amplifier and the built-in stereo set of TV set of lightweight.
The electric signals can also be utilized to enable the two vibration systems to vibrate in the same direction, so that the driving force of the loudspeaker can be improved in multiples.
Drawings
Fig. 1 is a cross-sectional view of a preferred embodiment 1 of the present invention;
fig. 2 is a sectional view of a preferred embodiment 2 of the present invention;
fig. 3 is a sectional view of a preferred embodiment 3 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1, a loudspeaker includes a first diaphragm 1 and a second diaphragm 2 arranged in a mirror image manner, and a magnetic circuit system for driving the first diaphragm 1 and the second diaphragm 2 to vibrate;
the magnetic circuit system comprises a first magnetic circuit unit and a second magnetic circuit unit; the first magnetic circuit unit comprises a first magnet 3 and a first voice coil 4, the second magnetic circuit unit comprises a second magnet 5 and a second voice coil 6, the second magnet 5 is of an annular structure, the first magnet 3 is arranged in the ring of the second magnet 5, and a gap is formed between the first magnet 3 and the second magnet 5;
a T-shaped iron 7 for dividing the gap into a first gap and a second gap is arranged in the gap, the first gap is formed by the inner wall of the T-shaped iron 7 and the outer wall of the first magnet 3, and the second gap is formed by the outer wall of the T-shaped iron 7 and the inner wall of the second magnet 5; wherein the first voice coil 4 is arranged in the first gap, and the second voice coil 6 is arranged in the second gap;
the first voice coil 4 drives the first vibrating diaphragm 1 to vibrate, and the second voice coil 6 drives the second vibrating diaphragm 2 to vibrate.
In the present embodiment, the N pole of the first magnet 3 and the S pole of the second magnet 5 are oriented in the same direction, and the S pole of the first magnet 3 and the N pole of the second magnet 5 are oriented in the same direction.
The present embodiment also includes the following preferred designs: and the south pole of the second magnet 5 is provided with a washer sheet.
The loudspeaker further comprises a first frame and a second frame which are arranged in a mirror image mode, the first vibrating diaphragm 1 is arranged on the edge of the first frame, and the second vibrating diaphragm 2 is arranged on the edge of the second frame;
the first basin frame is communicated with one opposite side of the second basin frame, and the magnetic circuit system is arranged at the communication position of the first basin frame and the second basin frame.
The vibration wave generator further comprises an elastic wave 8, and the first vibrating diaphragm 1 and the second vibrating diaphragm 2 are spherical vibrating diaphragms; the first vibrating diaphragm 1 and the second vibrating diaphragm 2 are connected to the edge of the first frame or the second frame through a corrugated rim 9; the elastic wave 8 and the spherical vibrating diaphragm are coaxially arranged and are positioned above the folding ring 9 at a certain distance; the bullet ripples 8 is provided with the trompil of stepping down in axle center department, the side fixed connection of trompil and spherical vibrating diaphragm of stepping down to expose partial spherical vibrating diaphragm.
The loudspeaker drives the two vibration systems to vibrate in a mirror mode by using the electric signals, so that the vibration inertia caused by the vibration of the cone can be almost completely counteracted, the loudspeaker box can not vibrate while the ideal low-frequency output is obtained, the distortion caused by the vibration of the box body and the vibration synthesis of the loudspeaker is eliminated, and the loudspeaker is particularly important for light-weight loudspeaker boxes and built-in sound of televisions.
The electric signals can also be utilized to enable the two vibration systems to vibrate in the same direction, so that the driving force of the loudspeaker can be improved in multiples.
This embodiment will play ripples 8 and shift up to the top of basin frame, adopt spherical vibrating diaphragm, the lateral wall of spherical vibrating diaphragm is fixed with play ripples 8, the outside of spherical vibrating diaphragm is fixed in the lateral part of basin frame through rolling over the ring, its simple structure, it is fixed firm, the thickness of vibration system has been reduced, large-amplitude and ultra-thin characteristics have been realized, the vibration space of basin frame has been enlarged, its bass effect and fidelity have fully been guaranteed, the equipment is convenient, be applicable to heavy-calibre, high-power, on the ultra-thin speaker, economical and practical.
Example 2
Referring to fig. 2, in the present embodiment, the T-shaped iron 7 is divided into a first T-shaped iron 71 and a second T-shaped iron 72;
the N pole of the first magnet 3 is connected with the N pole of the second magnet 5 through the first T-shaped iron 71, and the S pole of the first magnet 3 is connected with the second T-shaped iron 72; the first voice coil 4 extends out of the first gap along the direction of the S pole of the first magnet 3 to be connected with the first diaphragm 1, and the second voice coil 6 extends out of the second gap along the direction of the S pole of the second magnet 5 to be connected with the second diaphragm 2.
In this embodiment, the protruding end of the first T-bar 71 extends into the second voice coil 6, and the non-protruding end of the second T-bar 72 extends into the first voice coil 4.
Example 3
Referring to fig. 3, in the present embodiment, the N pole of the first magnet 3 and the N pole of the second magnet 5 are connected through the T-shaped iron 7, and the S pole of the first magnet 3 is provided with a first washer;
the first voice coil 4 extends out of the first gap along the direction of the S pole of the first magnet 3 to be connected with the first diaphragm 1, and the second voice coil 6 extends out of the second gap along the direction of the S pole of the second magnet 5 to be connected with the second diaphragm 2. And the S pole of the second magnet 5 is connected with a second washer.
In this embodiment, the protruding end of the T-shaped iron 7 extends into the second voice coil 6, and the first washer extends into the first voice coil 4.
The above embodiments are merely illustrative, and not restrictive, of the present invention. Changes, modifications, etc. to the above-described embodiments are intended to fall within the scope of the claims of the present invention, as long as they are in accordance with the technical spirit of the present invention.

Claims (9)

1. A loudspeaker, characterized by comprising: the magnetic circuit system is used for driving the first vibrating diaphragm and the second vibrating diaphragm to vibrate;
the magnetic circuit system comprises a first magnetic circuit unit and a second magnetic circuit unit; the first magnetic circuit unit comprises a first magnet and a first voice coil, the second magnetic circuit unit comprises a second magnet and a second voice coil, the second magnet is of an annular structure, the first magnet is arranged in the ring of the second magnet, and a gap is formed between the first magnet and the second magnet;
a T-shaped iron which divides the gap into a first gap and a second gap is arranged in the gap, the first gap is formed by the inner wall of the T-shaped iron and the outer wall of the first magnet, and the second gap is formed by the outer wall of the T-shaped iron and the inner wall of the second magnet; the first voice coil is arranged in the first gap, and the second voice coil is arranged in the second gap;
the first voice coil drives the first vibrating diaphragm to vibrate, and the second voice coil drives the second vibrating diaphragm to vibrate.
2. The loudspeaker of claim 1, wherein the N-pole of the first magnet is oriented in the same direction as the S-pole of the second magnet, and the S-pole of the first magnet is oriented in the same direction as the N-pole of the second magnet.
3. The loudspeaker of claim 2, wherein the T-bar is divided into a first T-bar and a second T-bar;
the N pole of the first magnet is connected with the N pole of the second magnet through the first T-shaped iron, and the S pole of the first magnet is connected with the second T-shaped iron; the first voice coil extends out of the first gap along the direction of the S pole of the first magnet and is connected with the first diaphragm, and the second voice coil extends out of the second gap along the direction of the S pole of the second magnet and is connected with the second diaphragm.
4. The loudspeaker of claim 3 wherein the protruding end of the first T-bar extends into the second voice coil and the non-protruding end of the second T-bar extends into the first voice coil.
5. The loudspeaker of claim 4, wherein the south pole of the second magnet is provided with a washer.
6. The loudspeaker of claim 2, wherein the N pole of the first magnet and the N pole of the second magnet are connected through the T-shaped iron, and the S pole of the first magnet is provided with a first washer;
the first voice coil extends out of the first gap along the direction of the S pole of the first magnet and is connected with the first diaphragm, and the second voice coil extends out of the second gap along the direction of the S pole of the second magnet and is connected with the second diaphragm; and the S pole of the second magnet 5 is connected with a second washer.
7. The loudspeaker of claim 6 wherein the projecting end of the T-bar extends into the second voice coil and the first washer extends into the first voice coil.
8. The loudspeaker of any one of claims 1-7, further comprising a first frame and a second frame arranged in mirror image, wherein the first diaphragm is disposed at an edge of the first frame, and the second diaphragm is disposed at an edge of the second frame;
the first basin frame is communicated with one opposite side of the second basin frame, and the magnetic circuit system is arranged at the communication position of the first basin frame and the second basin frame.
9. The loudspeaker of claim 8, further comprising an elastic wave, wherein the first diaphragm and the second diaphragm are spherical diaphragms;
the first vibrating diaphragm and the second vibrating diaphragm are connected to the edge of the first basin frame or the second basin frame through the folding ring;
the elastic wave and the spherical vibrating diaphragm are coaxially arranged and are positioned above the folding ring at a certain distance; the bullet ripples is provided with the trompil of stepping down in axle center department, the side fixed connection of trompil and spherical vibrating diaphragm of stepping down to expose partial spherical vibrating diaphragm.
CN201922353061.7U 2019-12-24 2019-12-24 Loudspeaker Active CN211128162U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922353061.7U CN211128162U (en) 2019-12-24 2019-12-24 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922353061.7U CN211128162U (en) 2019-12-24 2019-12-24 Loudspeaker

Publications (1)

Publication Number Publication Date
CN211128162U true CN211128162U (en) 2020-07-28

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ID=71690039

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922353061.7U Active CN211128162U (en) 2019-12-24 2019-12-24 Loudspeaker

Country Status (1)

Country Link
CN (1) CN211128162U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112533112A (en) * 2020-12-25 2021-03-19 瑞声新能源发展(常州)有限公司科教城分公司 Double-magnetic circuit structure and sound production device
WO2022062039A1 (en) * 2020-09-25 2022-03-31 瑞声声学科技(深圳)有限公司 Sound-producing unit and electronic terminal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022062039A1 (en) * 2020-09-25 2022-03-31 瑞声声学科技(深圳)有限公司 Sound-producing unit and electronic terminal
CN112533112A (en) * 2020-12-25 2021-03-19 瑞声新能源发展(常州)有限公司科教城分公司 Double-magnetic circuit structure and sound production device
CN112533112B (en) * 2020-12-25 2022-03-04 瑞声新能源发展(常州)有限公司科教城分公司 Double-magnetic circuit structure and sound production device

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