CN204795582U - A magnetic circuit and speaker for speaker - Google Patents
A magnetic circuit and speaker for speaker Download PDFInfo
- Publication number
- CN204795582U CN204795582U CN201520523104.0U CN201520523104U CN204795582U CN 204795582 U CN204795582 U CN 204795582U CN 201520523104 U CN201520523104 U CN 201520523104U CN 204795582 U CN204795582 U CN 204795582U
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- China
- Prior art keywords
- washer
- limit
- magnetic circuit
- circuit system
- kink
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Abstract
The utility model discloses a magnetic circuit and speaker for speaker, the former includes magnetic conduction board (11), centring magnet (12), center china department (14), limit magnet (13) and bian huasi (15), kink (152) that bian huasi (15) were taken charge of body (151) and were accepted with china department body (151) including china, china department body (151) sets up at the board of magnetic conduction dorsad (11) of corresponding side magnet (13) on the surface, kink (152) are to buckling towards magnetic conduction board (11) down on side (15a) the follow of china department body (151), and be in the same place with magnetic conduction board (11) welded fastening kink (152). The utility model discloses a set up the kink to be in the same place the kink with magnetic conduction board welded fastening, can prevent effectively that bian huasi, magnetic conduction board and limit magnet from coming off because of the glue adhesive strength is not enough and loose, and then realized the purpose that improves magnetic circuit's joint strength itself.
Description
Technical field
The utility model relates to electro-acoustic product technical field, and more specifically, the utility model relates to a kind of magnetic circuit system for loud speaker and has the loud speaker of this kind of magnetic circuit system.
Background technology
The magnetic circuit system of loud speaker generally comprises magnetic conductive board (or being referred to as frame), centring magnet, limit magnet, center washer and limit washer, wherein, centring magnet is arranged on the center on magnetic conductive board surface, limit magnet is arranged around centring magnet on magnetic conductive board, center washer is arranged on the surface of magnetic conductive board dorsad of centring magnet, and limit washer is arranged on the surface of magnetic conductive board dorsad of corresponding sides magnet, and between the integrative-structure of the integrative-structure of centring magnet, center washer and limit magnet, limit washer, be formed with the magnetic gap for placing voice coil loudspeaker voice coil.
At present, all bonded together by glue between above-mentioned each assembly of magnetic circuit system, and be also bonded together by glue between whole magnetic circuit system and the shell of loud speaker, because glue is bonding have technique advantage that is simple, that implement without the need to tip device, but glue is bonding but exists the relatively poor problem of bonding strength, even and if to adopt adhesive property extraordinary glue also cannot may reach because of the impact of environmental factor be such as that welding waits the bonding strength be mechanically connected.
Utility model content
An object of the present utility model is to provide a kind of magnetic circuit system for loud speaker, to improve the bonding strength between each assembly of magnetic circuit system.
According to first aspect of the present utility model, provide a kind of magnetic circuit system for loud speaker, comprise magnetic conductive board, centring magnet, center washer, limit magnet and limit washer, the kink that described limit washer comprises washer body and accepts with described washer body, described washer body is arranged on the surface of described dorsad magnetic conductive board of corresponding sides magnet, described kink bends towards described magnetic conductive board from top to bottom through the side of described washer body, and together with described kink is welded and fixed with described magnetic conductive board.
Preferably, the inside indentation in side of the relatively described magnetic conductive board of the outer surface of described kink; Or the outer surface of described kink is concordant with the side of described magnetic conductive board.
Preferably, the side of described magnetic conductive board has and caves inward and the groove of up/down perforation, and described kink stretches in described groove from top to bottom.
Preferably, described magnetic circuit system has the limit washer of one block of correspondence all limits magnet, and the washer body of described limit washer is the annular around described center washer, and described limit washer has at least two described kinks.
Preferably, described limit washer has two described kinks be oppositely arranged.
Preferably, described magnetic circuit system has two blocks of limit magnet be oppositely arranged, and described two blocks of limit magnet and described two kink right-angled intersections are arranged.
Preferably, the washer body of described limit washer is provided with and passes for hot molten column, with the pre-formed members by hot melt riveted joint fixing described limit washer.
An object of the present utility model is to provide a kind of loud speaker, to make having good bonding strength between each assembly of its magnetic circuit system.
According to another aspect of the present utility model, the loud speaker that the utility model provides has above-mentioned magnetic circuit system described in any one.
Preferably, the washer body of described limit washer is provided with pre-formed members, the mesochite of described loud speaker is provided with the hot molten column configured with described pre-formed members one_to_one corresponding, washer riveted joint in described limit through corresponding pre-formed members, and is fixed on described mesochite by the hot melt of described hot molten column by described hot molten column.
Preferably, the washer body of described limit washer is provided with at least two described pre-formed members.
A beneficial effect of the present utility model is, magnetic circuit system of the present utility model and loud speaker are formed towards the kink of magnetic conductive board bending by making limit washer, and make together with kink is welded and fixed with magnetic conductive board, effectively can prevent limit washer, magnetic conductive board and the limit magnet be held on therebetween comes off because glue adhesive strength is inadequate and loose, and then achieve the object of the bonding strength improving magnetic circuit system itself.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present utility model, further feature of the present utility model and advantage thereof will become clear.
Accompanying drawing explanation
In the description combined and the accompanying drawing forming a part for specification shows embodiment of the present utility model, and illustrate that one is used from and explains principle of the present utility model together with it.
Fig. 1 is a kind of axonometric drawing implementing structure according to the utility model magnetic circuit system;
Fig. 2 is the exploded view of magnetic circuit system shown in Fig. 1;
Fig. 3 is the axonometric drawing at another visual angle of limit washer in Fig. 1 and Fig. 2;
Fig. 4 is a kind of axonometric drawing implementing structure according to the utility model loud speaker;
Fig. 5 be in Fig. 4 A-A to cutaway view;
Fig. 6 be in Fig. 4 B-B to cutaway view.
Description of reference numerals:
1-magnetic circuit system; 11-magnetic conductive board;
111-groove; The side of 11a-magnetic conductive board;
12-centring magnet; 13-limit magnet;
14-center washer; 15-limit washer;
151-washer body; 152-kink;
153-pre-formed members; The side of 15a-washer body;
21-mesochite; 22-upper casing;
31-voice coil loudspeaker voice coil; 32-vibrating diaphragm;
33-ball top; P1-direction from top to bottom;
4-phonate hole.
Embodiment
Various exemplary embodiment of the present utility model is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit scope of the present utility model.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the utility model and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part for specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
The insecure problem of connection is there is in the utility model in order to solve existing magnetic circuit system, propose a kind of magnetic circuit system for loud speaker newly, as shown in Figures 1 to 6, magnetic circuit system 1 of the present utility model comprises magnetic conductive board 11, centring magnet 12, center washer 14, limit magnet 13 and limit washer 15, wherein, centring magnet 12 is arranged on the center on magnetic conductive board 11 surface, limit magnet 13 is arranged around centring magnet 12 on magnetic conductive board 11, center washer 14 is arranged on the surface of magnetic conductive board dorsad 11 of centring magnet 12, the surface of this magnetic conductive board 11 is dorsad interpreted as being relative surface, the surface be fitted in centring magnet 12 on magnetic conductive board 11, and limit washer 15 is arranged on the surface of magnetic conductive board dorsad 11 of corresponding sides magnet 13, the surface of this magnetic conductive board 11 be dorsad interpreted as be with corresponding sides magnet 13 be fitted in relative surface, surface on magnetic conductive board 11, and centring magnet 12, the integrative-structure of center washer 14 and limit magnet 13, the magnetic gap for placing voice coil loudspeaker voice coil 31 is formed between the integrative-structure of limit washer 15, in addition, the structure of the utility model opposite side washer is improved, be specially: the kink 152 that this limit washer 15 comprises washer body 151 and accepts with washer body 151, limit washer 15 is arranged on the surface of magnetic conductive board dorsad 11 of corresponding sides magnet 13 by washer body 151, kink 152 bends towards magnetic conductive board 11 from top to bottom through the side 15a of washer body 151, namely kink 152 extends to magnetic conductive board 11 place on direction P1 from top to bottom, and together with kink 152 is welded and fixed with magnetic conductive board 11, and be fixed together preferably through ultrasonic bonding or laser welding.At this, magnetic circuit system 1 can arrange one block of limit magnet 13, polylith limit magnet 13 also can be set, and when arranging one block of limit magnet 13, one piece of limit washer 15 can be set, form the structure of the corresponding one block of limit magnet 13 of one piece of limit washer 15, polylith limit washer 15 also can be set, form the structure of the corresponding one block of limit magnet 13 of all limits washer 15; And when arranging polylith limit magnet 13, one block of limit washer 15 corresponding all limits magnet 13 can be set, also can arrange and limit magnet 13 limit washer 15 one to one.
In magnetic circuit system of the present utility model, limit washer 15 is provided with the kink 152 bent towards magnetic conductive board 11, and together with kink 152 is welded and fixed with magnetic conductive board 11, because the bonding strength that is welded and fixed connection by mechanical means is apparently higher than the bonding bonding strength of glue, therefore not only can to ensure between limit washer 15 with magnetic conductive board 11 reliable is connected for this kind of structure, chucking power can also be applied to the limit magnet 13 be positioned at therebetween, and then effectively prevent limit washer 15, magnetic conductive board 11 and the limit magnet 13 be held on therebetween come off because glue adhesive strength is inadequate and loose, realize the object of the bonding strength improving magnetic circuit system 1 itself.Say from another point of view, the requirement of the adhesive strength between this kind of structure can reduce magnetic circuit system 1 said modules, area and/or the quantity of the bonding plane between magnetic circuit system 1 and speaker housings can also be reduced, and then reduction needs reserved coating groove, this is conducive to effectively utilizing the inner space of loud speaker, so that magnetic circuit system can be increased when loud speaker overall dimension is constant, obtain better acoustical behavior, or realize the more small design of loud speaker when not reducing acoustical behavior.Further, this kind of limit washer 15 is arranged to the structure of kink 152, can be played the effect of part limit magnet by kink 152, this can obtain the effect strengthening magnetic force to a certain extent.
In order to the increase making the setting of kink 152 can not cause magnetic circuit system 1 installing space, as depicted in figs. 1 and 2, the outer surface of this kink 152 is preferably the inside indentation of side 11a of relative magnetic conductive board 11; Or the outer surface of this kink 152 is concordant with the side 11a of magnetic conductive board 11.This can make kink 152 magnetic conductive board 11 projection be in the plane positioned at maximum magnitude occupied by magnetic conductive board 11, the scope of this maximum magnitude namely for being determined by the full-size of magnetic conductive board 11 in all directions of place plane, therefore, this kind of structure can ensure that the setting of kink 152 can not cause the increase of magnetic circuit system 1 installing space.
For the ease of carrying out welding operation, as shown in Figure 1, Figure 2 with shown in Fig. 6, the side 11a of this magnetic conductive board 11 can have and caves inward and the groove 111 of up/down perforation, like this, kink 11 just can stretch in groove 111 along direction P1 (in loud speaker, the direction being accustomed to center washer 14 to point to magnetic conductive board 11 is referred to as downward direction) from top to bottom.This kind of structure can enable operating personnel carry out welding operation in the outside of magnetic circuit system 1, and this is very favorable for small-sized magnetic circuit system.
Fig. 1 to Fig. 6 shows the embodiment that a kind of magnetic circuit system 1 has the limit washer 15 of one block of correspondence all limits magnet 13, and the washer body 151 of this limit washer 15 is the annular around center washer 14, this kind of limit washer 15 is not only convenient to carry out bonding with between speaker housings of magnetic circuit system 1, and magnetic circuit system 1 can be made to have the structure of relative closure, on this basis, this limit washer 15 preferably has at least two kinks 152, disperse with the position that stress between opposite side washer 15 and magnetic conductive board 11 is concentrated, and then the bonding strength improved further therebetween.Further, have consideration concurrently improve the bonding strength between limit washer 15 and magnetic conductive board 11 and reduce taking of kink 152 pairs of magnetic circuit system 1 inner spaces as much as possible, as shown in Figures 1 to 6, this limit washer 15 preferably has two kinks be oppositely arranged 152.Further, as shown in Figures 1 to 6, this magnetic circuit system 1 has two blocks of limit magnet 13 be oppositely arranged, and two blocks of limit magnet 13 and the right-angled intersection of two kinks 152 are arranged, this kind of structure can realize the Appropriate application to magnetic circuit system 1 inner space, and the effect that kink 152 can be made to use as limit magnet 13 is able to good performance.
The utility model is except improving the bonding strength of magnetic circuit system 1 itself, additionally provide the structure that one can improve bonding strength between magnetic circuit system 1 and speaker housings (being specially mesochite 21 as shown in Figures 1 to 6), so just can ensure to there will not be magnetic circuit system loose phenomenon come off when loud speaker falls from many aspects.For this reason, as shown in Figure 1 to Figure 3, in the utility model, the washer body 151 of limit washer 15 is provided with and passes for hot molten column 211, with the pre-formed members 153 by hot melt riveted joint fixed edge washer 15, namely by forming the mushroom head covering pre-formed members 153 to hot molten column 211 hot melt, and then washer body 151 is fixed on the riveted joint fixed structure between mushroom head and the shell that hot molten column 211 is set.The washer body 151 of limit washer 15 is preferably provided with at least two pre-formed members 153, and arrange one piece at magnetic circuit system 1 and have in the embodiment of the limit washer 15 of annular washer body 151, in order to avoid hot molten column 211 and the location conflicts between kink 152 and limit magnet 13, this pre-formed members 153 is preferably arranged on four edges of the washer body 151 of limit washer 15, particularly respectively arranges a pre-formed members at four edges.
For the ease of carrying out the installation of magnetic circuit system 1 in speaker housings, as shown in Figure 1 to Figure 3, this pre-formed members 153 particularly leads to the side 15a of washer body 151, to form breach on the 15a of side.
Another object of the present utility model is to provide a kind of loud speaker as shown in Figures 4 to 6, and this loud speaker has the above-mentioned magnetic circuit system 1 that the utility model provides.Because magnetic circuit system 1 of the present utility model self has higher bonding strength, therefore the utility model loud speaker has each assembly of the magnetic circuit system 1 not easily loose advantage come off when falling.As shown in Figure 1 to Figure 3, the shell of loud speaker has mesochite 21 and upper casing 22 usually, also may have lower casing (not shown), wherein, mesochite 21 is for installing magnetic circuit system 1 and comprising the vibrational system at voice coil loudspeaker voice coil 31, vibrating diaphragm 32 and ball top 33 (or being referred to as reinforcement part), upper casing 22 coordinates the front operatic tunes being formed and have phonate hole 4 with mesochite 21, lower casing is used for magnetic circuit system 1 to be encapsulated in the rear operatic tunes, therefore, together with magnetic circuit system 1 is specifically adhesively fixed with lower casing with mesochite 21 when carrying out the assembling of loud speaker.
In order to improve the bonding strength between magnetic circuit system 1 and speaker housings, to promote the magnetic circuit system anti-dropping capability of loud speaker further, the utility model loud speaker preferably adopts above-mentioned limit washer 15 to be provided with the magnetic circuit system 1 of pre-formed members 153, accordingly, the mesochite 21 of loud speaker should be arranged the hot molten column 211 configured with pre-formed members 153 one_to_one corresponding, hot molten column 211 is through corresponding pre-formed members 153, and by the hot melt of hot molten column 211, limit washer 15 riveted joint is fixed on mesochite 21, so just, limit washer 15 can be adhesively fixed on the basis of mesochite 21, again by machine riveting structure raising connection reliability therebetween.In order to improve the bonding strength between limit washer 15 and mesochite 21 further, preferably, the washer body 151 of limit washer 15 is provided with at least two pre-formed members 153, and magnetic circuit system 1 arrange one piece of washer body 151 be annular limit washer 15 embodiment in, the washer body 151 of this limit washer 15 preferably respectively arranges a pre-formed members 153 at four edges.
The various embodiments described above primary focus describes the difference with other embodiments, but it will be clear for those skilled in the art that the various embodiments described above can be used alone as required or be combined with each other.
Although be described in detail specific embodiments more of the present utility model by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit scope of the present utility model.It should be appreciated by those skilled in the art, when not departing from scope and spirit of the present utility model, above embodiment can be modified.Scope of the present utility model is limited by claims.
Claims (10)
1. the magnetic circuit system for loud speaker (1), it is characterized in that, comprise magnetic conductive board (11), centring magnet (12), center washer (14), limit magnet (13) and limit washer (15), the kink (152) that described limit washer (15) comprises washer body (151) and accepts with described washer body (151), described washer body (151) is arranged on the surface of described dorsad magnetic conductive board (11) of corresponding sides magnet (13), described kink (152) bends towards described magnetic conductive board (11) from top to bottom through the side (15a) of described washer body (151), and together with described kink (152) is welded and fixed with described magnetic conductive board (11).
2. magnetic circuit system according to claim 1 (1), is characterized in that, side (11a) the inwardly indentation of the relatively described magnetic conductive board (11) of outer surface of described kink (152); Or the outer surface of described kink (152) is concordant with the side (11a) of described magnetic conductive board (11).
3. magnetic circuit system according to claim 1 (1), it is characterized in that, the side (11a) of described magnetic conductive board (11) has and caves inward and the groove of up/down perforation (111), and described kink (152) stretches in described groove (111) from top to bottom.
4. magnetic circuit system according to claim 1 (1), it is characterized in that, described magnetic circuit system (1) has the limit washer (15) of one piece of correspondence all limit magnet (13), and the washer body (151) on described limit washer (15) is the annular around described center washer (14), described limit washer (15) has at least two described kinks (152).
5. magnetic circuit system according to claim 4 (1), is characterized in that, described limit washer (15) has two described kinks (152) be oppositely arranged.
6. magnetic circuit system according to claim 5 (1), is characterized in that, described magnetic circuit system (1) has two blocks of limit magnet (13) be oppositely arranged, and described two pieces of limit magnet (13) and the right-angled intersection of described two kinks (152) are arranged.
7. magnetic circuit system according to any one of claim 1 to 6, it is characterized in that, the washer body (151) on described limit washer (15) is provided with and passes for hot molten column (211), with the pre-formed members (153) by fixing described limit washer (15) of hot melt riveted joint.
8. a loud speaker, is characterized in that, has the magnetic circuit system (1) according to any one of claim 1 to 6.
9. loud speaker according to claim 8, it is characterized in that, the washer body (151) on described limit washer (15) is provided with pre-formed members (153), the mesochite (21) of described loud speaker is provided with the hot molten column (211) configured with described pre-formed members (153) one_to_one corresponding, described limit washer (15) riveted joint through corresponding pre-formed members (153), and is fixed on described mesochite (21) by the hot melt of described hot molten column (211) by described hot molten column (211).
10. loud speaker according to claim 9, is characterized in that, the washer body (151) on described limit washer (15) is provided with at least two described pre-formed members (153).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523104.0U CN204795582U (en) | 2015-07-17 | 2015-07-17 | A magnetic circuit and speaker for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523104.0U CN204795582U (en) | 2015-07-17 | 2015-07-17 | A magnetic circuit and speaker for speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204795582U true CN204795582U (en) | 2015-11-18 |
Family
ID=54535546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520523104.0U Withdrawn - After Issue CN204795582U (en) | 2015-07-17 | 2015-07-17 | A magnetic circuit and speaker for speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204795582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072541A (en) * | 2015-07-17 | 2015-11-18 | 歌尔声学股份有限公司 | Magnetic circuit system for loudspeaker, and loudspeaker |
| CN106792392A (en) * | 2017-01-16 | 2017-05-31 | 深圳市信维通信股份有限公司 | A kind of horn magnetic circuit structure and its assemble method |
-
2015
- 2015-07-17 CN CN201520523104.0U patent/CN204795582U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072541A (en) * | 2015-07-17 | 2015-11-18 | 歌尔声学股份有限公司 | Magnetic circuit system for loudspeaker, and loudspeaker |
| US10178480B2 (en) | 2015-07-17 | 2019-01-08 | Goertek Inc. | Speaker and magnetic circuit system thereof |
| CN106792392A (en) * | 2017-01-16 | 2017-05-31 | 深圳市信维通信股份有限公司 | A kind of horn magnetic circuit structure and its assemble method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20180925 |