CN203691623U - Double magnetic circuit electromagnetic loudspeaker - Google Patents

Double magnetic circuit electromagnetic loudspeaker Download PDF

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Publication number
CN203691623U
CN203691623U CN201320869472.1U CN201320869472U CN203691623U CN 203691623 U CN203691623 U CN 203691623U CN 201320869472 U CN201320869472 U CN 201320869472U CN 203691623 U CN203691623 U CN 203691623U
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China
Prior art keywords
magnet
limit
magnetic circuit
washer
basin frame
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CN201320869472.1U
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Chinese (zh)
Inventor
郭翔
张成飞
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Goertek Inc
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Goertek Inc
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Abstract

The utility model belongs to the technical field of electroacoustic products, particularly relates to a double magnetic circuit electromagnetic loudspeaker. The double magnetic circuit electromagnetic loudspeaker comprises a vibrating system, a magnetic circuit system, and an outer shell for accommodating and fixing the vibrating system and the magnetic circuit system, wherein the magnetic circuit system is of a double magnetic circuit structure, and comprises a basin frame, an internal magnet, side magnets arranged on two sides of the internal magnet, an internal washer combined with the internal magnet, and side washers combined with the side magnets; the side parts of the basin frame are provided with baffle blocks used for limiting the side magnets from moving toward the internal magnet, and the side edge part of the basin frame is provided with baffle columns used for limiting the side washers from moving toward the internal magnet; and each side washer is provided with a side washer accommodating groove used for accommodating the baffle columns, and/or each side magnet is provided with a side magnet accommodating groove used for accommodating the baffle columns. When in use, the double magnetic circuit electromagnetic loudspeaker can ensure that the side magnets and the side washers cannot move toward the internal magnet since the basin frame is provided with baffle blocks used for limiting the side magnets from moving toward the internal magnet, and the side edge part of the basin frame is provided with the baffle columns used for limiting the side washers from moving toward the internal magnet; thereby ensuring the magnetic property of the products.

Description

Double magnetic circuit magnetic speaker
Technical field
The utility model belongs to electro-acoustic product technical field, relates in particular to a kind of double magnetic circuit magnetic speaker.
Background technology
Loud speaker involving vibrations system of the prior art, magnetic circuit system, and accommodate the housing of fixing vibrational system and magnetic circuit system, in traditional structure, the magnetic circuit system of loud speaker comprises basin frame and is located at the magnet on basin frame, and because magnet size is limited, the magnetic property of product can be affected.In order to improve the magnetic property of product, conventionally need to increase the size of magnet, there is thus the magnetic speaker of two magnetic route structure, two magnetic route structure comprises the internal magnet that is arranged on basin frame middle part and the limit magnet that is arranged on internal magnet both sides, because limit magnet is exposed to shell, the size of limit magnet increases like this, the size of the magnetic circuit system of whole loud speaker also increases, although promoted the magnetic property of product, but the major defect that this structure exists is: because shell does not surround limit magnetic circuit, internal magnet and limit magnet attract each other, be easy to cause limit magnet to move to internal magnet direction, will affect like this magnetic property of magnetic speaker product.
Utility model content
The purpose of this utility model is to provide a kind of double magnetic circuit magnetic speaker, is intended to solve the problem that the limit magnet of existing double magnetic circuit magnetic speaker moves to internal magnet.
The utility model is achieved in that a kind of double magnetic circuit magnetic speaker, described double magnetic circuit magnetic speaker involving vibrations system, magnetic circuit system and accommodate the shell of fixing described vibrational system and described magnetic circuit system; Described magnetic circuit system is two magnetic route structure, comprise the basin frame for magnetic conduction, be arranged on the internal magnet at described basin frame middle part, be arranged on the limit magnet of described internal magnet both sides, in the side of described internal magnet away from described basin frame, be combined with interior washer, in the side of described limit magnet away from described basin frame, be combined with limit washer; On the sidepiece of described basin frame, be provided with the block moving to described internal magnet place for limiting described limit magnet, in the side portion of described basin frame, be provided with the bumping post moving to described internal magnet place for limiting described limit washer; On the washer of described limit, corresponding described bumping post place is provided with the limit washer storage tank for accommodating described bumping post, and/or on the magnet of described limit, corresponding described bumping post place is provided with the limit magnet storage tank for accommodating described bumping post.
Improve as one, the notch of described limit washer storage tank arranges towards its length direction, the described limit washer storage tank shape that takes the shape of the letter U.
Improve as one, the notch of described limit magnet storage tank arranges towards its length direction, the described limit magnet storage tank shape that takes the shape of the letter U.
Improve as one, described block is arranged on the side place of described limit magnet near described internal magnet.
Improve as one, described block is positioned at the end of described limit magnet, and on the end of described limit magnet, corresponding described block place is provided with the limit magnet groove of accommodating described block.
Improve as one, the notch of described limit magnet groove arranges towards its length direction, the described limit magnet groove shape that takes the shape of the letter U.
Improve as one, described vibrational system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil of described vibrating diaphragm downside, described vibrating diaphragm comprises ball top and encircles the ring portion establishing around described ball top, in described ring portion, some ring portion decorative patterns that are used for strengthening described ball top rigidity is set; On the upper side at described ball top, be combined with the ball top reinforcement for strengthening described ball top rigidity.
Owing to having adopted technique scheme, use the utility model provide double magnetic circuit magnetic speaker time, because basin frame is provided with the block moving to internal magnet place for Restricted edge magnet, the side portion of basin frame is provided with the bumping post moving to internal magnet place for Restricted edge washer, can ensure that limit magnet, limit washer can not move to internal magnet place, solve the limit magnet of loud speaker and the problem that limit washer moves to internal magnet, ensured the magnetic property of product.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the double magnetic circuit magnetic speaker of the utility model the first embodiment;
Fig. 2 is the elevational schematic view of the double magnetic circuit magnetic speaker of the utility model the first embodiment;
Fig. 3 is the schematic top plan view of the double magnetic circuit magnetic speaker of the utility model the first embodiment;
Fig. 4 is the enlarged diagram of analysing and observe along A-A line in Fig. 3;
Fig. 5 is the perspective view of the double magnetic circuit magnetic speaker of the utility model the first embodiment;
Fig. 6 is the local enlarged diagram in B place in Fig. 1;
Fig. 7 is the local enlarged diagram in C place in Fig. 1;
Fig. 8 is the decomposition texture schematic diagram of the double magnetic circuit magnetic speaker of the utility model the second embodiment;
Fig. 9 is the local enlarged diagram in D place in Fig. 8;
Figure 10 is the structural representation of the limit magnet of the utility model the 3rd embodiment;
Wherein, 10, housing, 101, through hole, 102, through hole, 103, containing cavity, 11, protecgulum, 111, phonate hole, 12, vibrating diaphragm, 121, ring portion, 122, ball top, 13, ball top reinforcement, 14, voice coil loudspeaker voice coil, 141, voice coil leads, 142, voice coil leads, 15, basin frame, 151, block, 152, bumping post, 16, internal magnet, 17, interior washer, 18, limit magnet, 181, limit magnet storage tank, 182, limit magnet groove, 19, limit washer, 191, limit washer storage tank, 20, limit magnet, 201, limit magnet storage tank, 202, limit magnet groove, 21, limit washer, 211, limit washer storage tank, 22, electrical connector, 23, electrical connector.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The first embodiment
From Fig. 1 to Fig. 7, this double magnetic circuit magnetic speaker comprises: vibrational system, magnetic circuit system and accommodate the shell 10 of fixing vibrational system and magnetic circuit system.
Vibrational system comprises vibrating diaphragm 12 and is incorporated into the voice coil loudspeaker voice coil 14 of vibrating diaphragm 12 downsides, vibrating diaphragm 12 comprises ball top 122 and encircles around ball top 122 the ring portion 121 establishing, in order to promote the high frequency sound effect of vibrating diaphragm 12, some rings portion decorative pattern is set in ring portion 121 and strengthens the rigidity at ball top 122, the ball top reinforcement 13 that is combined with rigidity on the upper side of vibrating diaphragm 12 strengthens the rigidity at ball top 122, draws voice coil leads 141 and voice coil leads 142 on voice coil loudspeaker voice coil 14.
In the present embodiment, be provided with some horizontal stripes and strengthen the rigidity of ball top reinforcement 13 on ball top reinforcement 13, these ball top reinforcement 13 cross sections are wavy.
Magnetic circuit system is two magnetic route structure, comprise the basin frame 15 for magnetic conduction, be arranged on the supermedial internal magnet 16 of basin frame 15, be arranged on basin frame 15 and lay respectively at the limit magnet 18 of internal magnet 16 both sides, limit magnet 20, wherein, in the side of internal magnet 16 away from basin frame 15, be combined with interior washer 17, limit magnet 18, in the side of limit magnet 20 away from basin frame 15, be combined with respectively limit washer 19, limit washer 21, interior washer 17, limit washer 19, limit washer 21 is magnetic conduction construction, can adjust the direction of the magnetic line of force, in the present embodiment, interior washer 17, limit washer 19, limit washer 21 is made up of sheet metal, magnetic circuit system forms closed magnetic circuit, internal magnet 16 and limit magnet 18, between limit magnet 20, form the magnetic gap of accommodating voice coil loudspeaker voice coil 14, the magnetic line of force is through voice coil loudspeaker voice coil 14, in voice coil loudspeaker voice coil 14, connect after the signal of telecommunication, voice coil loudspeaker voice coil 14 is subject to the effect up-down vibration of Ampere force in magnetic field, further drive vibrating diaphragm 12 vibrations to sound.
This shell 10 comprises annular sidewall, on sidewall, positive opposite side magnet 18, limit magnet 20 places are respectively equipped with through hole 102, through hole 101, limit magnet 18, limit magnet 20 extend to respectively in through hole 102, through hole 101, make a part for limit magnet 18, limit magnet 20 directly be exposed to the sidewall of shell 10, this structure makes limit magnet 18, limit magnet 20 can take the space on shell 10 sidewalls, thereby effectively increase the size of limit magnet 18, limit magnet 20, improve the magnetic property of product, improved the sensitivity of product; The upside of shell 10 is also covered with protecgulum 11, on this protecgulum 11, just the position of vibrating diaphragm 12 is offered to phonate hole 111, and protecgulum 11 and shell 10 surround the peripheral frame of loud speaker jointly.
In the present embodiment, shell 10 is provided with the containing cavity 103 of accommodating magnetic circuit system, can effectively reduce like this thickness of whole loud speaker, is conducive to product thin type.
Because shell 10 does not surround limit magnetic circuit, and attract each other between internal magnet 16 and limit magnet 18, limit magnet 20, be easy to cause limit magnet 18, limit magnet 20 to move to internal magnet 16 places, will affect like this magnetic property of product, in order to ensure the magnetic property of product, on basin frame 15, be provided with the block 151 moving to internal magnet 16 places for Restricted edge magnet 18, limit magnet 20, block 151 is arranged on limit magnet 18, limit magnet 20 edge near internal magnet 16, on the sidepiece of basin frame 15, be respectively equipped with for Restricted edge washer 19, the bumping post 152 that limit washer 21 moves to internal magnet 16 places, limit washer 19, on limit washer 21, corresponding bumping post 152 places are provided with the limit washer storage tank 191 suitable with it, limit washer storage tank 211, in the present embodiment, on the both sides of basin frame 15, be respectively equipped with two bumping posts 152, limit washer 19 be provided with two with the suitable limit washer storage tank 191 of bumping post 152, limit washer 21 be provided with two with the suitable limit washer storage tank 211 of bumping post 152, the notch of this limit washer storage tank 211 is towards its length direction, shape takes the shape of the letter U.So just can ensure that limit magnet 18, limit magnet 20 and limit washer 19, limit washer 21 can not move to internal magnet 16 places, ensure the magnetic property of product.
In the present embodiment, on the magnet 18 of corresponding limit, corresponding bumping post 152 places are provided with limit magnet storage tank 181, the rectangular nick shaped of this limit magnet storage tank 181, on limit magnet 20, corresponding bumping post 152 places are provided with limit magnet storage tank 201, the rectangular nick shaped of this limit magnet storage tank 201.
This double magnetic circuit magnetic speaker also comprises the electrical connector 22, the electrical connector 23 that are fixedly connected with shell 10, in the present embodiment, electrical connector 22, electrical connector 23 are elastic piece structure, but be not limited to this structure, electrical connector 22, electrical connector 23 are electrically connected with voice coil leads 142, voice coil leads 141 respectively, in the present embodiment, to be fixedly connected with by the mode of welding, electrical connector 22, electrical connector 23 are electrically connected with the circuit of end product, thereby realize the control of end product to loudspeaker signal simultaneously.
The second embodiment
From Fig. 8, Fig. 9, this embodiment and the first embodiment are basic identical, and its difference is:
Block 151 is positioned at the end of limit magnet 18, limit magnet 20, on the end of magnet 18, limit magnet 20, corresponding block 151 places are provided with limit magnet groove 182, the limit magnet groove 202 of accommodating block 151, in the present embodiment, the notch of limit magnet groove 182, limit magnet groove 202 arranges towards its length direction, limit magnet groove 182, limit magnet groove 202 shape that takes the shape of the letter U, as shown in Figure 9.
The 3rd embodiment
As shown in Figure 10, this embodiment and the second embodiment are basic identical, and its difference is:
Notch for the limit magnet storage tank 181 of accommodating bumping post 152 on limit magnet 18 arranges towards its length direction, limit magnet storage tank 181 shape that takes the shape of the letter U; Notch for the limit magnet storage tank 201 of accommodating bumping post 152 on limit magnet 20 arranges towards its length direction, limit magnet storage tank 201 shape that takes the shape of the letter U.
The double magnetic circuit magnetic speaker that the utility model provides comprises: vibrational system, magnetic circuit system, and accommodate the shell of fixing vibrational system and magnetic circuit system, this magnetic circuit system is two magnetic route structure, comprise the basin frame for magnetic conduction, be arranged on the internal magnet at basin frame middle part, be arranged on the limit magnet of internal magnet both sides, in the side of internal magnet away from basin frame, be combined with interior washer, in the side of limit magnet away from basin frame, be combined with limit washer, on the sidepiece of basin frame, be provided with the block moving to internal magnet place for Restricted edge magnet, in the side portion of basin frame, be provided with the bumping post moving to internal magnet place for Restricted edge washer, on the washer of limit, corresponding bumping post place is provided with the limit washer storage tank for accommodating bumping post, on the magnet of limit, corresponding bumping post place is provided with the limit magnet storage tank for accommodating bumping post, when use, owing to being provided with the block moving to internal magnet place for Restricted edge magnet on basin frame, the side portion of basin frame is provided with the bumping post moving to internal magnet place for Restricted edge washer, can ensure that limit magnet, limit washer can not move to internal magnet place, have ensured the magnetic property of product.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims (7)

1. double magnetic circuit magnetic speaker, described double magnetic circuit magnetic speaker involving vibrations system, magnetic circuit system and accommodate the shell of fixing described vibrational system and described magnetic circuit system; Described magnetic circuit system is two magnetic route structure, comprise the basin frame for magnetic conduction, be arranged on the internal magnet at described basin frame middle part, be arranged on the limit magnet of described internal magnet both sides, in the side of described internal magnet away from described basin frame, be combined with interior washer, in the side of described limit magnet away from described basin frame, be combined with limit washer, it is characterized in that:
On the sidepiece of described basin frame, be provided with the block moving to described internal magnet place for limiting described limit magnet, in the side portion of described basin frame, be provided with the bumping post moving to described internal magnet place for limiting described limit washer; On the washer of described limit, corresponding described bumping post place is provided with the limit washer storage tank for accommodating described bumping post, and/or on the magnet of described limit, corresponding described bumping post place is provided with the limit magnet storage tank for accommodating described bumping post.
2. double magnetic circuit magnetic speaker according to claim 1, is characterized in that, the notch of described limit washer storage tank arranges towards its length direction, the described limit washer storage tank shape that takes the shape of the letter U.
3. double magnetic circuit magnetic speaker according to claim 2, is characterized in that, the notch of described limit magnet storage tank arranges towards its length direction, the described limit magnet storage tank shape that takes the shape of the letter U.
4. double magnetic circuit magnetic speaker according to claim 3, is characterized in that, described block is arranged on the side place of described limit magnet near described internal magnet.
5. double magnetic circuit magnetic speaker according to claim 3, is characterized in that, described block is positioned at the end of described limit magnet, and on the end of described limit magnet, corresponding described block place is provided with the limit magnet groove of accommodating described block.
6. double magnetic circuit magnetic speaker according to claim 5, is characterized in that, the notch of described limit magnet groove arranges towards its length direction, the described limit magnet groove shape that takes the shape of the letter U.
7. according to the double magnetic circuit magnetic speaker described in claim 1-6 any one, it is characterized in that, described vibrational system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil of described vibrating diaphragm downside, described vibrating diaphragm comprises ball top and encircles the ring portion establishing around described ball top, in described ring portion, some ring portion decorative patterns that are used for strengthening described ball top rigidity is set; On the upper side at described ball top, be combined with the ball top reinforcement for strengthening described ball top rigidity.
CN201320869472.1U 2013-12-26 2013-12-26 Double magnetic circuit electromagnetic loudspeaker Active CN203691623U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320869472.1U CN203691623U (en) 2013-12-26 2013-12-26 Double magnetic circuit electromagnetic loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320869472.1U CN203691623U (en) 2013-12-26 2013-12-26 Double magnetic circuit electromagnetic loudspeaker

Publications (1)

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CN203691623U true CN203691623U (en) 2014-07-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104507015A (en) * 2014-12-31 2015-04-08 苏州恒听电子有限公司 Novel vibration film with reinforcing rib structure
CN104581551A (en) * 2014-12-31 2015-04-29 苏州恒听电子有限公司 Vibrating diaphragm with concave-convex reinforcing ribs
WO2016095618A1 (en) * 2014-12-16 2016-06-23 歌尔声学股份有限公司 Micro speaker
CN106488367A (en) * 2016-10-09 2017-03-08 深圳市得辉达智能科技有限公司 A kind of Ultrathin speaker and its portable audio

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016095618A1 (en) * 2014-12-16 2016-06-23 歌尔声学股份有限公司 Micro speaker
US10015599B2 (en) 2014-12-16 2018-07-03 Goertek Inc. Micro speaker
CN104507015A (en) * 2014-12-31 2015-04-08 苏州恒听电子有限公司 Novel vibration film with reinforcing rib structure
CN104581551A (en) * 2014-12-31 2015-04-29 苏州恒听电子有限公司 Vibrating diaphragm with concave-convex reinforcing ribs
CN106488367A (en) * 2016-10-09 2017-03-08 深圳市得辉达智能科技有限公司 A kind of Ultrathin speaker and its portable audio

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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee after: Goertek Inc.

Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee before: Goertek Inc.