CN204859547U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
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- CN204859547U CN204859547U CN201520523045.7U CN201520523045U CN204859547U CN 204859547 U CN204859547 U CN 204859547U CN 201520523045 U CN201520523045 U CN 201520523045U CN 204859547 U CN204859547 U CN 204859547U
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- mesochite
- washer
- loud speaker
- metal connecting
- connecting sheet
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Abstract
The utility model discloses a loudspeaker, it includes magnetic circuit (1), mesochite (21) and fixed connection metallic interconnect piece (5) on mesochite (21), and expose through mesochite (21) metallic interconnect piece (5), and just corresponding side china department (15) laminating and welded fastening with magnetic circuit (1) are in the same place. The utility model discloses a loudspeaker is through setting up the metallic interconnect piece on the mesochite to make magnificent department laminating of metallic interconnect piece and corresponding side and welded fastening together, can effectively improve the joint strength between bian huasi and the mesochite, and then realized joint strength's between improvement magnetic circuit whole and the mesochite purpose.
Description
Technical field
The utility model relates to electro-acoustic product technical field, and more specifically, the utility model relates to a kind of loud speaker.
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, bonded together by glue between the shell (mainly mesochite and lower casing) of whole magnetic circuit system and 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 for loud speaker, to improve the bonding strength between the limit washer of magnetic circuit system and the mesochite of loud speaker.
According to first aspect of the present utility model, provide a kind of loud speaker, it metal connecting sheet comprising magnetic circuit system, mesochite and be fixedly connected on described mesochite, described metal connecting sheet is exposed by described mesochite, and the exposed parts of described metal connecting sheet is fitted with the corresponding sides washer of described magnetic circuit system and together with being welded and fixed.
Preferably, described metal connecting sheet is arranged in the storage tank of described mesochite, and described storage tank forms exposed mouth on the lower surface of the limit washer towards described magnetic circuit system of described mesochite; Described metal connecting sheet comprises brace body and lock part, the outer surface towards corresponding sides washer of described brace body is exposed by described exposed mouth, and described outer surface is fitted with corresponding sides washer and together with being welded and fixed, described lock part extends via the inside of described brace body to described mesochite, and described lock part is not vertical with described exposed mouth at least partially.
Preferably, obtuse angle is become to be connected between described lock part with the inner surface of the washer of corresponding sides dorsad of described brace body.
Preferably, described lock part extends to the inside of described mesochite via the lateral surface of described brace body, and wherein, described lateral surface is the side of the voice coil loudspeaker voice coil away from described loud speaker of described brace body.
Preferably, the described outer surface of described brace body is concordant with the described lower surface of described mesochite, and described limit washer is supported on described lower surface.
Preferably, described loud speaker has the metal connecting sheet of correspondence all limits washer, and described metal connecting sheet is the annular brace of the voice coil loudspeaker voice coil around described loud speaker.
Preferably, described magnetic circuit system has one piece of limit washer, and described limit washer is the annular washer of the center washer around described loud speaker, and described metal connecting sheet and described limit washer be whole to be enclosed and to fit and together with being welded and fixed.
Preferably, described metal connecting sheet is iron plate, steel disc or copper sheet.
Preferably, described metal connecting sheet and described mesochite integrated injection molding.
Preferably, described limit washer is provided with pre-formed members, described mesochite 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.
A beneficial effect of the present utility model is, loud speaker of the present utility model by arranging metal connecting sheet in mesochite, and limit washer is fitted and together with being welded and fixed with metal connecting sheet, effectively can improve the bonding strength between limit washer and mesochite, and then achieve the object improving bonding strength between magnetic circuit system entirety and mesochite.
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 schematic top plan view implementing structure according to the utility model loud speaker;
Fig. 2 be in Fig. 1 A-A to cross-sectional schematic;
Fig. 3 be in Fig. 1 B-B to cross-sectional schematic.
Fig. 4 is the syndeton schematic diagram between the magnetic circuit system of loud speaker in Fig. 1 and mesochite.
Fig. 5 is the decomposing schematic representation of Fig. 4.
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; 5-metal connecting sheet;
51-brace body; 52-lock part;
53-location hole; 212-exposed mouth.
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 poor problem of bonding strength is there is by means of only glue is bonding in the utility model in order to solve between magnetic circuit system with shell, provide a kind of improved loadspeaker structure, as shown in Figures 1 to 5, this loud speaker comprises magnetic circuit system 1, this magnetic circuit system 1 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 be dorsad interpreted as be with centring magnet 12 be fitted in relative surface, surface 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, as shown in Figures 2 and 3, this loud speaker also comprises mesochite 21 and is fixedly connected on the metal connecting sheet 5 on mesochite 21, and wherein, metal connecting sheet 5 is exposed by mesochite 21, and metal connecting sheet 5 is fitted with corresponding sides washer 15 and together with being welded and fixed.At this, magnetic circuit system 1 can arrange one piece of limit washer 15, it is such as one piece of annular limit washer 15, two pieces or polylith limit washer 15 also can be set, and metal connecting sheet 5 can configure with limit washer 15 one_to_one corresponding, also can by arranging annular metal connecting sheet 5 corresponding all limits washer 15.
Because by mechanical means, the bonding strength be weldingly fixed on together will be much higher than the bonding bonding strength of glue, therefore, loadspeaker structure of the present utility model effectively can improve the bonding strength between limit washer 15 and mesochite 21, and then can realize the object improving bonding strength between magnetic circuit system 1 entirety and mesochite 21.Say from another point of view, this kind of structure can reduce even to save needs coating groove reserved on mesochite 21, 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.
In order to can to realize between metal connecting sheet 5 with mesochite 21 reliable is connected with comparatively simple structure, as shown in Figures 2 and 3, this metal connecting sheet 5 can be arranged in the storage tank of mesochite 21, and this storage tank forms exposed mouth 212 on the lower surface of the limit washer 15 towards magnetic circuit system 1 of mesochite 21, this metal connecting sheet 5 then comprises brace body 51 and lock part 52, the outer surface towards limit washer 15 of brace body 51 is exposed by this exposed mouth 212, and this outer surface of brace body 51 is fitted with corresponding sides washer 15 and together with being welded and fixed, lock part 52 extends via the inside of brace body 51 to mesochite 21, and lock part 52 is not vertical with this exposed mouth 212 at least partially, parcel so just by mesochite 21 pairs of lock parts 52 limits brace body 51 via exposed mouth 212 from slippage mesochite 21, at this, lock part 52 can extend to the inside of mesochite 21 via the optional position of the inner surface of the washer of corresponding sides dorsad 15 of brace body 51 or via the side of brace body 51, the inner surface of this corresponding sides washer 15 is dorsad the surface relative with the outer surface of brace body 51.Herein " via " be interpreted as being that lock part 52 is accepted with brace body 51, " inside to mesochite 21 extends " be herein interpreted as be lock part 52 at least in part, preferably fully, wrapped up by mesochite 21.
Form this metal connecting sheet 5 for the ease of manufacturing, and for the ease of carrying out the connection between metal connecting sheet 5 and mesochite 21, as shown in Figures 2 and 3, this lock part 52 can become obtuse angle to be connected with between the above-mentioned inner surface of brace body 51.
Form this metal connecting sheet 5 to manufacture equally, and for the ease of carrying out the connection between metal connecting sheet 5 and mesochite 21, as shown in Figures 2 and 3, this lock part 52 can extend via the inside of the lateral surface of brace body 51 to mesochite 21, wherein, this lateral surface is the side of the voice coil loudspeaker voice coil 31 away from loud speaker of brace body 51.This kind of structure can make metal connecting sheet 5 obtain by directly bending one piece of flat metal in a straightforward manner.
In order to reliably be connected on mesochite 21 by limit washer 15, the above-mentioned outer surface of this brace body 51 is preferably concordant with the above-mentioned lower surface of mesochite 21, and like this, the part exceeding brace body 51 of this limit washer 15 just can be supported on this lower surface.
For the ease of carrying out the connection between metal connecting sheet 5 and mesochite 21, loud speaker of the present utility model preferably arranges the metal connecting sheet 5 of correspondence all limits washer 15, and this metal connecting sheet 5 is the annular brace of the voice coil loudspeaker voice coil 31 of circulating loudspeaker.On this basis, this magnetic circuit system 1 preferably has one piece of limit washer 15, and limit washer 15 is the annular washer of the center washer 14 of circulating loudspeaker, like this, limit washer 15 just can be fitted and together with being welded and fixed with whole circle of metal connecting sheet 5, to improve the bonding strength between magnetic circuit system 1 and mesochite 21 further.
The metal connecting sheet 5 adopted in the utility model can be suitable for by employing any sheet metal carrying out welding operation, such as, adopt steel disc, aluminium flake, copper sheet, iron plate etc.
For the ease of realizing the connection between metal connecting sheet 5 and mesochite 21, this metal connecting sheet 5 is preferably and mesochite 21 integrated injection molding, by metal connecting sheet 5 as insert injection moulding mesochite 21, like this, no matter which kind of structure metal connecting sheet 5 has, be such as the structure with above-mentioned lock part 52, all the two can be connected to form an entirety, and can directly form above-mentioned storage tank by injection moulding.For this reason, this metal connecting sheet 5 can also arrange location hole 53, during with the injection mo(u)lding of underway shell 21, is reliably positioned in die cavity by metal connecting sheet 5 with coordinating of location hole 53 by reference column in mould.This kind of structure also helps the bonding strength improved further between metal connecting sheet 5 and mesochite 21.
Except above-mentioned by limit washer 15 being weldingly fixed on except the bonding strength that metal connecting sheet 5 improves between limit washer 15 and mesochite 21, the utility model also proposed the structure that another can improve bonding strength therebetween, specifically as shown in Figures 2 to 5, limit washer 15 is provided with pre-formed members 153, accordingly, mesochite 21 is 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, can again by machine riveting structure raising connection reliability therebetween.Preferably, limit washer 15 is provided with at least two pre-formed members 153, and arranges one piece of limit washer 15 at magnetic circuit system 1, and limit washer 15 is in the embodiment of annular washer, and this limit washer 15 preferably respectively arranges a pre-formed members 153 at four edges.
For the ease of carrying out the installation of magnetic circuit system 1 in loud speaker, as shown in Figure 5, this pre-formed members 153 particularly leads to the side 15a of washer body 151, to form breach on the 15a of side.
In addition, the utility model additionally provides a kind of structure that can improve the bonding strength of magnetic circuit system 1 self, specifically as shown in Figures 2 to 5, 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 via 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 polylith limit washer 15 and configure with limit magnet 13 one_to_one corresponding, also can arrange one block of annular limit washer 15 corresponding all limits magnet 13.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 comes off because glue adhesive strength is inadequate and loose, realize the object of the bonding strength improving magnetic circuit system 1 itself; And 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. 5, 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. 5 shows the magnetic circuit system 1 with one piece of annular limit washer 15, this limit washer 15 preferably has two kinks be oppositely arranged 152, disperse with the position that stress between opposite side washer 15 and magnetic conductive board 11 is concentrated, and then improve bonding strength therebetween further.On this basis, this magnetic circuit system 1 preferably has two blocks of limit magnet 13 be oppositely arranged, so just, two blocks of limit magnet 13 and the right-angled intersection of two kinks 152 can be 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 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. a loud speaker, is characterized in that, the metal connecting sheet (5) comprising magnetic circuit system (1), mesochite (21) and be fixedly connected on described mesochite (21); Described metal connecting sheet (5) is exposed by described mesochite (21), and the exposed parts of described metal connecting sheet (5) is fitted with the corresponding sides washer (15) of described magnetic circuit system (1) and together with being welded and fixed.
2. loud speaker according to claim 1, it is characterized in that, described metal connecting sheet (5) is arranged in the storage tank of described mesochite (21), and described storage tank forms exposed mouth (212) on the lower surface of the limit washer towards described magnetic circuit system (1) of described mesochite (21); Described metal connecting sheet (5) comprises brace body (51) and lock part (52), the outer surface towards corresponding sides washer (15) of described brace body (51) is exposed by described exposed mouth (212), and described outer surface is fitted with corresponding sides washer (15) and together with being welded and fixed, described lock part (52) extends via the inside of described brace body (51) to described mesochite (21), and described lock part (52) is not vertical with described exposed mouth (212) at least partially.
3. loud speaker according to claim 2, is characterized in that, becomes obtuse angle to be connected between described lock part (52) with the inner surface of the washer of corresponding sides dorsad (15) of described brace body (51).
4. loud speaker according to claim 2, it is characterized in that, described lock part (52) extends to the inside of described mesochite (21) via the lateral surface of described brace body (51), wherein, described lateral surface is the side of the voice coil loudspeaker voice coil away from described loud speaker (31) of described brace body (51).
5. loud speaker according to claim 2, it is characterized in that, the described outer surface of described brace body (51) is concordant with the described lower surface of described mesochite (21), and described limit washer (15) is supported on described lower surface.
6. loud speaker according to claim 1, it is characterized in that, described loud speaker has the metal connecting sheet (5) of correspondence all limit washer (15), and described metal connecting sheet (5) is the annular brace of the voice coil loudspeaker voice coil (31) around described loud speaker.
7. loud speaker according to claim 6, it is characterized in that, described magnetic circuit system (1) has one piece of limit washer (15), and described limit washer (15) is the annular washer of the center washer (14) around described loud speaker, described metal connecting sheet (5) and described limit washer (15) be whole to be enclosed and to fit and together with being welded and fixed.
8. loud speaker according to claim 1, is characterized in that, described metal connecting sheet (5) is iron plate, steel disc or copper sheet.
9. loud speaker according to any one of claim 1 to 8, is characterized in that, described metal connecting sheet (5) and described mesochite (21) integrated injection molding.
10. loud speaker according to any one of claim 1 to 8, it is characterized in that, described limit washer (15) is provided with pre-formed members (153), described mesochite (21) 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523045.7U CN204859547U (en) | 2015-07-17 | 2015-07-17 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523045.7U CN204859547U (en) | 2015-07-17 | 2015-07-17 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204859547U true CN204859547U (en) | 2015-12-09 |
Family
ID=54750057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520523045.7U Active CN204859547U (en) | 2015-07-17 | 2015-07-17 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204859547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128389A1 (en) * | 2017-12-25 | 2019-07-04 | 歌尔科技有限公司 | Loudspeaker module and electronic device |
| WO2021098010A1 (en) * | 2019-11-22 | 2021-05-27 | 歌尔股份有限公司 | Sound generation device module and electronic product |
-
2015
- 2015-07-17 CN CN201520523045.7U patent/CN204859547U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128389A1 (en) * | 2017-12-25 | 2019-07-04 | 歌尔科技有限公司 | Loudspeaker module and electronic device |
| US11159863B2 (en) | 2017-12-25 | 2021-10-26 | Goertek Inc. | Loudspeaker module and electronic device |
| WO2021098010A1 (en) * | 2019-11-22 | 2021-05-27 | 歌尔股份有限公司 | Sound generation device module and electronic product |
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Legal Events
| Date | Code | Title | Description |
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| 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. |