CN205320278U - Long stroke speaker - Google Patents
Long stroke speaker Download PDFInfo
- Publication number
- CN205320278U CN205320278U CN201520934383.XU CN201520934383U CN205320278U CN 205320278 U CN205320278 U CN 205320278U CN 201520934383 U CN201520934383 U CN 201520934383U CN 205320278 U CN205320278 U CN 205320278U
- Authority
- CN
- China
- Prior art keywords
- voice coil
- housing
- magnetic
- coil loudspeaker
- loudspeaker voice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a long stroke speaker, it includes casing, the magnetic circuit and the vibration system that link to each other with the casing. Magnetic circuit including locate in the casing magnet steel components and with the casing links to each other and forms the magnetic conduction spare of magnetic gap with magnet steel components. Vibration system includes the vibrating diaphragm that links to each other with the casing, locate in the casing and support that links to each other with the vibrating diaphragm and the voice coil loudspeaker voice coil that links to each other with the support. The support includes supporting part and the self -supporting portion both ends linking arm along the direction of vibration extension that links to each other with the vibrating diaphragm. The voice coil loudspeaker voice coil encircles the magnet steel components setting and and between the magnet steel components is equipped with the clearance, thereby two linking arms support the voice coil loudspeaker voice coil suspension in the magnetic gap with the voice coil loudspeaker voice coil is continuous respectively. The terminal clamping part of linking arm can increase the joint strength of voice coil loudspeaker voice coil and support to improve the transmission efficiency of electromagnetic drive power, driven the vibrating diaphragm vibration then more effectively.
Description
[technical field]
The present invention relates to a kind of loud speaker, especially, it relates to a kind of long stroke loud speaker being used in field of mobile communication.
[background technology]
In recent years along with the fast development of mobile communication technology, human consumer uses the mobile communication equipment with voice function more and more, other equipment that such as portable phone, handheld game machine, laptop computer, laptop computer, multimedia player and can being undertaken by public or dedicated communications network is communicated. People are not only concerned about its voice quality, more require its small volume and less weight, be easy to carry, and the long stroke loud speaker as speech transmission device, its size design directly can affect profile and the size of communication equipment.
The long stroke loud speaker of correlation technique comprises magnetic circuit system and vibrational system, and vibrational system comprises vibrating diaphragm, the support being connected with vibrating diaphragm and fixing voice coil loudspeaker voice coil on the bracket. Voice coil loudspeaker voice coil in the magnetic gap of magnetic circuit system toward multiplex vibration thus drive vibrating diaphragm to sound. Connecting of the long stroke loudspeaker support of correlation technique and voice coil loudspeaker voice coil becomes day by day to relax along with the past multiplex vibration of voice coil loudspeaker voice coil in magnetic gap, reduces the transfer efficiency of electromagnetic actuation force, and connection between voice coil loudspeaker voice coil and support can produce grazing due to absent-mindedness.
Therefore, it is necessary to provide a kind of novel long stroke loud speaker.
[practical novel content]
The purpose of this utility model is to provide a kind of support and the high long stroke loud speaker of coil strength of joint.
The technical solution of the utility model is as follows: a kind of long stroke loud speaker, it comprises housing, the magnetic circuit system being connected with described housing and vibrational system, described vibrational system comprise be connected with described housing vibrating diaphragm, be located in described housing and the support that is connected with described vibrating diaphragm and the voice coil loudspeaker voice coil being connected with described support
Described magnetic circuit system comprise the magnetic steel component being located in described housing and be connected with described housing and with described magnetic steel component formed magnetic gap magnetic conductive part;
The pole core that described magnetic steel component comprises the first magnet steel, the 2nd magnet steel and is located between described first magnet steel and the 2nd magnet steel, described first magnet steel is parallel with the vibration direction of described vibrational system with the magnetizing direction of described 2nd magnet steel, and described first magnet steel is identical with the polarity of described 2nd magnet steel near one end of described pole core;
The connecting arm that described support comprises the support portion being connected with described vibrating diaphragm and extends along described vibration direction from two ends, described support portion;
Described voice coil loudspeaker voice coil around described pole core arrange and and described magnetic steel component between be provided with gap, connecting arm described in two be connected with described voice coil loudspeaker voice coil respectively thus by described voice coil loudspeaker voice coil mount supports in described magnetic gap.
Preferably, one end that described connecting arm is connected with described voice coil loudspeaker voice coil is provided with clamping part, and described voice coil loudspeaker voice coil is clamped wherein by described clamping part.
Preferably, the biend that described voice coil loudspeaker voice coil has the first end face towards described vibrating diaphragm and is oppositely arranged with described first end face, described clamping part comprise towards described voice coil loudspeaker voice coil extend and and described first end face to the first extension portion connect, towards described voice coil loudspeaker voice coil extend and and described biend to the 2nd extension portion connect and the voice coil loudspeaker voice coil accommodation section being located between described first extension portion and described 2nd extension portion.
Preferably, reinforced sheet also it is folded with between described first end face and described first extension portion and between described biend and described 2nd extension portion.
Preferably, this long stroke loud speaker also comprises the auxiliary parts for improving described stability of vibration system.
Preferably, described clamping part is extended with extension portion to the direction away from described voice coil loudspeaker voice coil, described auxiliary parts comprise the connection piece being fixedly connected with described housing and side is connected with described connection piece compliant member that another side is connected with described extension portion.
Preferably, described compliant member comprises the middle portion being connected with described extension portion and the ring portion arranged around described middle portion.
Preferably, the 2nd housing that described housing comprises the first housing and is connected with described first housing, described first housing has the first opening of the first sidewall described in the first sidewall and through two extending along described vibration direction and being oppositely arranged, described 2nd housing has the 2nd opening of the 2nd sidewall described in the 2nd sidewall and through two extending along described vibration direction and being oppositely arranged, described first opening and described 2nd opening are semi-enclosed opening, and the first opening and described 2nd opening are oppositely arranged;
Described magnetic conductive part is in annular, it the 2nd magnetic conductive part comprising the first magnetic conductive part being connected with described first housing and being connected with described 2nd housing, described first magnetic conductive part comprises the first magnetic conducting wall being contained in described first opening and connects the first connection wall of the first magnetic conducting wall described in two away from described 2nd housing one end, and described 2nd magnetic conductive part comprises the 2nd magnetic conducting wall being contained in described 2nd opening and connects the two connection wall of the 2nd magnetic conducting wall described in two away from described first housing one end.
Preferably, described magnetic steel component is arranged in the magnetic conductive part of described annular, and described first magnet steel and described 2nd magnet steel are connected wall and described 2nd connection wall to connecing respectively away from one end of described pole core with described first.
Preferably, described first magnetic conducting wall is being greater than described first opening in the mutually equidirectional degree of depth along the length in described vibration direction, and described 2nd magnetic conducting wall is being less than described 2nd opening in the mutually equidirectional degree of depth along the length in described vibration direction.
The beneficial effects of the utility model are: the clamping part of connecting arm end can increase the strength of joint of voice coil loudspeaker voice coil and support, thus improve the transfer efficiency of electromagnetic actuation force, then more effectively drive diaphragm oscillations.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the utility model a kind of long stroke loud speaker first embodiment;
Fig. 2 is the sectional view in A-A direction in long stroke loud speaker Fig. 1 of the present utility model;
Fig. 3 is the STRUCTURE DECOMPOSITION figure of long stroke loud speaker first embodiment of the present utility model;
Fig. 4 is the enlarged view of 142d in long stroke loud speaker Fig. 3 of the present utility model;
Fig. 5 is the structural representation of compliant member in long stroke loud speaker first embodiment of the present utility model;
Fig. 6 is the wiring layout of vibrational system and magnetic circuit system in long stroke loud speaker the 2nd embodiment of the present utility model;
Fig. 7 is the enlarged view at C position in long stroke loud speaker the 2nd embodiment Fig. 6 of the present utility model.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
First embodiment:
As Figure 1-3, a kind of long stroke loud speaker 10 comprises housing 11, the vibrational system 14 being connected with housing 11 and magnetic circuit system 15.
Housing 11 comprises upper cover 16, be connected with upper cover 16 the first housing 12 and the 2nd housing 13 being connected with the first housing 12. In other embodiments, the first housing 12 and the 2nd housing 13 can also be one-body molded.
The voice coil loudspeaker voice coil 143 that vibrational system 14 comprises vibrating diaphragm 141, the support 142 being connected with vibrating diaphragm 141 and is connected with support 142. The ring that vibrating diaphragm 141 comprises the ball top being positioned at central authorities and arranges around ball top, ring has an outer peripheral edge 141a, and this outer peripheral edge 141a is located in upper cover 16 and the first housing 12 between the end face of upper cover 16. Support 142 has the connecting arm 142b that the support portion 142a being connected with vibrating diaphragm 141 and 142a two ends, self-supporting portion extend along the vibration direction (the B direction in Fig. 1) of vibrating diaphragm 141 towards the surface of magnetic circuit system 15. One end that two connecting arm 142b are shorter with voice coil loudspeaker voice coil 143 respectively is connected. One end that connecting arm 142b is connected with voice coil loudspeaker voice coil 143 is extended with extension portion 142c along the direction away from voice coil loudspeaker voice coil 143.
Further, one end that connecting arm 142b is connected with voice coil loudspeaker voice coil 143 is provided with clamping part 142d. The biend 143b that voice coil loudspeaker voice coil 143 has the first end face 143a towards vibrating diaphragm 141 and is oppositely arranged with the first end face 143a. As shown in Figure 4, clamping part 142d comprise towards voice coil loudspeaker voice coil 143 extend and and the first end face 143a to the first extension portion 1421 connect, towards voice coil loudspeaker voice coil 143 extend and and biend 143b to the 2nd extension portion 1422 connect and the voice coil loudspeaker voice coil accommodation section 1433 being formed between the first extension portion 1421 and the 2nd extension portion 1422. Voice coil loudspeaker voice coil 143 shorter while be contained in voice coil loudspeaker voice coil accommodation section 1433.
Clamping part 142d, the voice coil loudspeaker voice coil accommodation section 1433 being particularly formed between the first extension portion 1421 and the 2nd extension portion 1422 can increase the strength of joint of voice coil loudspeaker voice coil 143 with support 142, thus improves the transfer efficiency of electromagnetic actuation force. And glue can be adopted in voice coil loudspeaker voice coil accommodation section 1433 to improve being coupled of voice coil loudspeaker voice coil 143 and clamping part 142d, avoid voice coil loudspeaker voice coil 143 when moving and between support 142 due to the friction of gap generation.
In order to strengthen the stability of vibrational system 14, this long stroke loud speaker 10 also comprises a subsystem 17. Subsystem 17 comprises the connection piece 171 being fixedly connected with housing 11 and side is connected with connection piece 171 compliant member 172 that another side is connected with extension portion 142c. Specifically, connection piece 171 is located between the first housing 12 and the 2nd housing 13. As shown in Figure 5, the ring portion 172b that compliant member 172 comprises the middle portion 172a being connected with extension portion 142c and arranges around middle portion 172a. The structure of ring portion 172b and the ring of vibrating diaphragm 141 are similar. When support 142 vibrates with voice coil loudspeaker voice coil 143, connection piece 171 is owing to being connected with housing 11, and itself can't move along with support 142.And compliant member 172 can move along with support 142, the mode of its vibration is equal to the mode of vibration of vibrating diaphragm 141 substantially.
The magnetic conductive part that magnetic circuit system 15 comprises magnetic steel component and arranges around magnetic steel component. Magnetic steel component comprises the first magnet steel 151, the 2nd magnet steel 152, the pole core 153 be located between the first magnet steel 151 and the 2nd magnet steel 152. First magnet steel 151 is identical with the vibration direction of vibrational system 14 with the magnetizing direction of the 2nd magnet steel 152, and the first magnet steel 151 is identical near one end polarity of pole core 153 with the 2nd magnet steel 152, is N pole, and the one end away from pole core 153 is S pole. In other embodiments, the first magnet steel 151 and the 2nd magnet steel 152 can also be S pole near one end of pole core 153, and the one end away from pole core 153 is N pole.
In a preferred embodiment of the invention, the first housing 12 and the 2nd housing 13 are provided separately. The object so done is the installation for the ease of magnetic circuit system 15. First housing 12 has first opening 122 at the first sidewall 121 and through two first sidewalls 121 and the edge thereof extending along vibration direction and being oppositely arranged. 2nd housing 13 has the 2nd opening 132 at the 2nd sidewall 131 and through two the 2nd sidewalls 131 and the edge thereof extending along vibration direction and being oppositely arranged. That is, the first opening 122 and the 2nd opening 132 are semi-enclosed opening, and the first opening 122 and the 2nd opening 132 are oppositely arranged thus form one for accommodating the resettlement section of magnetic conductive part.
In the present embodiment, magnetic conductive part entirety is annular, it the 2nd magnetic conductive part 155 comprising the first magnetic conductive part 154 being connected with the first housing 12 and being connected with the 2nd housing 13. First magnetic conductive part 154 comprises the first magnetic conducting wall 154a being arranged in the first opening 122 and connects the first connection wall 154b of two the first magnetic conducting wall 154a away from the 2nd housing 13 one end. 2nd magnetic conductive part 155 comprises the 2nd magnetic conducting wall 155a being arranged in the 2nd opening 132 and connects the two connection wall 155b of two the 2nd magnetic conducting wall 155a away from first housing 12 one end. First magnetic conductive part 154 and the 2nd magnetic conductive part 155 collectively form the magnetic conductive part of annular.
Magnetic steel component is contained in the magnetic conductive part of this annular, and first magnet steel 151 and the 2nd opposite polarity one end of magnet steel 152 be connected wall 154b and the 2nd connection wall 155b respectively with first to connecing, meanwhile, the upper and lower sides (direction that Fig. 1 shows) of magnetic steel component is respectively with one to the first magnetic conducting wall 154a and the 2nd magnetic conducting wall 155a formation magnetic gap separated by a distance. Voice coil loudspeaker voice coil 143 is arranged around the outer peripheral edge of pole core 153, and the magnetic field power can being subject to based on it in magnetic gap after energising freely moves back and forth. Thus drive vibrating diaphragm 141 vibration sounding.
That is, in the present embodiment, magnetic conductive part has two functions, and namely an effect being the magnetize line of force is assembled leads magnetic function, and another has been the function of fixing magnetic steel component. In the embodiment that other are possible, magnetic conductive part can not be annular, and housing may not be a split type but entirety. Magnetic conductive part can comprise flat first magnetic conductive board and the 2nd magnetic conductive board. Housing has the first sidewall and the 2nd sidewall that extend along vibration direction and be oppositely arranged, offering for accommodating the first magnetic conductive board and the collecting hole of the 2nd magnetic conductive board on first sidewall and the 2nd sidewall, magnetic steel component is located in housing and is oppositely arranged with the first magnetic conductive board and the 2nd magnetic conductive board. Now magnetic steel component can be fixed by other structures. This fixed sturcture is not to hinder the to-and-fro movement of coil as good.
In the preferred embodiment, the first magnetic conducting wall 154a is greater than the first opening 122 at mutually equidirectional degree of depth D at the length L in vibration direction, and the 2nd magnetic conducting wall 155a is less than the 2nd opening 132 at mutually equidirectional degree of depth d at the length l in vibration direction.That is, the first magnetic conducting wall 154a has extended in the 2nd opening 132, can make the fixing more firm of magnetic conductive part like this.
2nd embodiment:
As shown in fig. 6-7, in the present embodiment, the structure of a kind of long stroke loud speaker is identical with a upper embodiment, the vibrational system 20 comprise housing (not shown) equally, being connected with housing and the magnetic circuit system 30 being located in housing.
Vibrational system 20 is completely identical with structure and first embodiment of magnetic circuit system 30, the voice coil loudspeaker voice coil 23 that vibrational system 20 comprises vibrating diaphragm 21, the support 22 being connected with vibrating diaphragm 21 and is connected with support 22.
With the first embodiment the difference is that, this long stroke loud speaker also comprises the reinforced sheet 40 between the first end face being located at voice coil loudspeaker voice coil 23 and the first extension portion 221 of clamping part 22a and between the biend of voice coil loudspeaker voice coil 23 and the 2nd extension portion 222 of clamping part 22a further.
Owing to voice coil loudspeaker voice coil 23 is longer, when moving, voice coil loudspeaker voice coil 23 self easily produces deformation, thus causes the electromagnetic actuation force on voice coil loudspeaker voice coil 23 cannot effectively pass to support 22, and then cannot effectively drive vibrating diaphragm 21. And on first end face and biend of voice coil loudspeaker voice coil 23, add reinforced sheet 40 can effectively prevent voice coil loudspeaker voice coil 23 from producing deformation in motion. Further, the first end face and the biend of reinforced sheet 40 and voice coil loudspeaker voice coil 23 can adopt the mode being adhesively fixed, it is possible to increase strength of joint further.
Above-described is only enforcement mode of the present utility model; at this it is noted that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; improvement can also be made, but these all belong to protection domain of the present utility model.
Claims (10)
1. a long stroke loud speaker, it comprises housing, the magnetic circuit system being connected with described housing and vibrational system, described vibrational system comprise be connected with described housing vibrating diaphragm, be located in described housing and the support that is connected with described vibrating diaphragm and the voice coil loudspeaker voice coil being connected with described support, it is characterised in that:
Described magnetic circuit system comprise the magnetic steel component being located in described housing and be connected with described housing and with described magnetic steel component formed magnetic gap magnetic conductive part;
The pole core that described magnetic steel component comprises the first magnet steel, the 2nd magnet steel and is located between described first magnet steel and the 2nd magnet steel, described first magnet steel is parallel with the vibration direction of described vibrational system with the magnetizing direction of described 2nd magnet steel, and described first magnet steel is identical with the polarity of described 2nd magnet steel near one end of described pole core;
The connecting arm that described support comprises the support portion being connected with described vibrating diaphragm and extends along described vibration direction from two ends, described support portion;
Described voice coil loudspeaker voice coil around described pole core arrange and and described magnetic steel component between be provided with gap, connecting arm described in two be connected with described voice coil loudspeaker voice coil respectively thus by described voice coil loudspeaker voice coil mount supports in described magnetic gap.
2. long stroke loud speaker according to claim 1, it is characterised in that, one end that described connecting arm is connected with described voice coil loudspeaker voice coil is provided with clamping part, and described voice coil loudspeaker voice coil is clamped wherein by described clamping part.
3. long stroke loud speaker according to claim 2, it is characterized in that, the biend that described voice coil loudspeaker voice coil has the first end face towards described vibrating diaphragm and is oppositely arranged with described first end face, described clamping part comprise towards described voice coil loudspeaker voice coil extend and and described first end face to the first extension portion connect, towards described voice coil loudspeaker voice coil extend and and described biend to the 2nd extension portion connect and the voice coil loudspeaker voice coil accommodation section being located between described first extension portion and described 2nd extension portion.
4. long stroke loud speaker according to claim 3, it is characterised in that, also it is folded with reinforced sheet between described first end face and described first extension portion and between described biend and described 2nd extension portion.
5. long stroke loud speaker according to claim 2, it is characterised in that, this long stroke loud speaker also comprises the auxiliary parts for improving described stability of vibration system.
6. long stroke loud speaker according to claim 5, it is characterized in that, described clamping part is extended with extension portion to the direction away from described voice coil loudspeaker voice coil, described auxiliary parts comprise the connection piece being fixedly connected with described housing and side is connected with described connection piece compliant member that another side is connected with described extension portion.
7. long stroke loud speaker according to claim 6, it is characterised in that, described compliant member comprises the middle portion being connected with described extension portion and the ring portion arranged around described middle portion.
8. long stroke loud speaker according to claim 1, it is characterized in that, the 2nd housing that described housing comprises the first housing and is connected with described first housing, described first housing has the first opening of the first sidewall described in the first sidewall and through two extending along described vibration direction and being oppositely arranged, described 2nd housing has the 2nd opening of the 2nd sidewall described in the 2nd sidewall and through two extending along described vibration direction and being oppositely arranged, described first opening and described 2nd opening are semi-enclosed opening, and first opening and described 2nd opening be oppositely arranged,
Described magnetic conductive part is in annular, it the 2nd magnetic conductive part comprising the first magnetic conductive part being connected with described first housing and being connected with described 2nd housing, described first magnetic conductive part comprises the first magnetic conducting wall being contained in described first opening and connects the first connection wall of the first magnetic conducting wall described in two away from described 2nd housing one end, and described 2nd magnetic conductive part comprises the 2nd magnetic conducting wall being contained in described 2nd opening and connects the two connection wall of the 2nd magnetic conducting wall described in two away from described first housing one end.
9. long stroke loud speaker according to claim 8, it is characterized in that, described magnetic steel component is arranged in the magnetic conductive part of described annular, and described first magnet steel and described 2nd magnet steel are connected wall and described 2nd connection wall to connecing respectively away from one end of described pole core with described first.
10. long stroke loud speaker according to claim 8, it is characterized in that, described first magnetic conducting wall is being greater than described first opening in the mutually equidirectional degree of depth along the length in described vibration direction, and described 2nd magnetic conducting wall is being less than described 2nd opening in the mutually equidirectional degree of depth along the length in described vibration direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934383.XU CN205320278U (en) | 2015-11-20 | 2015-11-20 | Long stroke speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934383.XU CN205320278U (en) | 2015-11-20 | 2015-11-20 | Long stroke speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205320278U true CN205320278U (en) | 2016-06-15 |
Family
ID=56189304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520934383.XU Expired - Fee Related CN205320278U (en) | 2015-11-20 | 2015-11-20 | Long stroke speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205320278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383854A (en) * | 2020-11-30 | 2021-02-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound producing device |
-
2015
- 2015-11-20 CN CN201520934383.XU patent/CN205320278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383854A (en) * | 2020-11-30 | 2021-02-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound producing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20211120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |