CN204559873U - A kind of loadspeaker structure - Google Patents
A kind of loadspeaker structure Download PDFInfo
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- CN204559873U CN204559873U CN201520280797.5U CN201520280797U CN204559873U CN 204559873 U CN204559873 U CN 204559873U CN 201520280797 U CN201520280797 U CN 201520280797U CN 204559873 U CN204559873 U CN 204559873U
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- pad
- heat
- barrier material
- shell
- shell fragment
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Abstract
The utility model relates to a kind of loadspeaker structure, comprising vibration component, magnetic circuit system, shell and shell fragment.Described shell is for carrying described vibration component and magnetic circuit system, and described shell fragment is fixing on the housing.Described shell fragment comprises first surface and second surface, and described shell fragment has pad, and described pad comprises the first pad be positioned on described first surface.The position that the second surface of described shell fragment is corresponding with described first pad is coated with heat-barrier material.A technical problem to be solved in the utility model avoids welding the high temperature melting shell produced, and makes casing deformation.Another technical problem that the utility model solves prevents melting wlding from flowing into fabrication hole, destroys the parts in loud speaker.
Description
Technical field
The utility model belongs to acoustic-electric energy-conversion technique field, and particularly, the utility model relates to the architectural feature of the parts in Microspeaker.
Background technology
Microspeaker is indispensable microphone device in modern portable electronic devices, and along with people propose higher requirement to the profile of electronic equipment, tonequality, the volume of Microspeaker becomes less, and vibration component and magnetic circuit system performance become stronger.
At present, micro-speaker assemblies adopts with the connection of the signal of telecommunication form going between and weld with shell fragment mostly, goes between to draw from vibration component, is welded to connect with the shell fragment be positioned on loud speaker module.The major advantage of this connected mode is, the layout of electrical connection can design the space can saved loud speaker as far as possible and take flexibly.And be electrically connected reliable and stable, production technology is relatively simple.In order to joint space-efficient characteristic be not fully exerted, shell fragment can be injection-moulded in the shell of module or monomer by usual those skilled in the art.But the shell fragment be injection-moulded in shell can make the wall thickness reduction of shell, and due to Shooting Technique, can there is at least one fabrication hole in the shell of the below of shell fragment, pad.
On the one hand, when described lead-in wire welds with the pad on shell fragment, the heat of generation is concentrated on the shell fragment that is delivered to around pad, easily causes shell to melt distortion.Casing deformation can affect the outward appearance of module and follow-up assembling process, if the shell near shell fragment is excessively thin, occurs being out of shape largely, then loud speaker can be caused to use.
On the other hand, owing to there is fabrication hole below shell fragment, when carrying out welding processing, on shell fragment, the welding material of high temperature melting can flow to case surface along injection molding technical holes, affects the profile of shell.Time serious, melted material also likely flows on conductor part and causes shorted devices.
So, based on above-mentioned technical problem, be necessary to provide a kind of new shell fragment injection moulding process or elastic piece structure, the thinning thawing distortion caused of shell can be avoided, and prevent from melted material from flowing out from fabrication hole damaging.
Utility model content
An object of the present utility model prevents high temperature when welding from causing casing deformation, the disfigurement that when another object of the present utility model is to prevent from welding, melting wlding inflow fabrication hole causes and parts damages.
According to an aspect of the present utility model, provide a kind of loadspeaker structure, comprising:
Vibration component;
Magnetic circuit system;
For carrying the shell of described vibration component and magnetic circuit system;
Fixing shell fragment on the housing, described shell fragment comprises first surface and second surface, and described shell fragment has pad, and described pad comprises the first pad be positioned on described first surface;
The position that described second surface is corresponding with described first pad is coated with heat-barrier material.
Described pad can comprise the second pad be positioned on described first surface, and the position that described second surface is corresponding with described second pad is coated with heat-barrier material.Described heat-barrier material covers whole described second surface.
Described heat-barrier material can comprise the first heat-barrier material and the second heat-barrier material, described second heat-barrier material covers on a second surface, described first heat-barrier material covers on the first surface, and described first heat-barrier material exposes described first pad on described first surface.
Or described pad can comprise the second pad be positioned on described second surface, the position that described first surface is corresponding with described second pad is coated with heat-barrier material.
Described heat-barrier material can comprise the first heat-barrier material and the second heat-barrier material, and described first heat-barrier material covers on the first surface, and described first heat-barrier material exposes described first pad.Described second heat-barrier material covers on described second surface, and described second heat-barrier material exposes described second pad.
Described loadspeaker structure comprises two shell fragments, and two shell fragments are electrically connected with described vibration component respectively.
Preferably, described shell fragment can injection mo(u)lding in described shell, described pad is exposed to the surface of described shell.Described heat-barrier material can be polyimide film.
In addition, described vibration component comprises vibrating diaphragm, voice coil loudspeaker voice coil and two voice coil leads.Described voice coil loudspeaker voice coil is fixedly connected with described vibrating diaphragm, and described voice coil leads is drawn from described voice coil loudspeaker voice coil, and described voice coil leads is electrically connected with two shell fragments respectively.
A technique effect of the present utility model is, when described voice coil leads or holding wire and described pad solder, the heat that welding produces can not directly, all pass on described shell, avoids the casing deformation because high temperature causes, breakage.Another technique effect of the present utility model is that fabrication hole seals by the heat-barrier material below described shell fragment, and the melting wlding produced during welding can not be seeped into below shell fragment and flow into fabrication hole.This elastic piece structure can prevent melting wlding from causing short circuit, avoids the parts in its damage loud speaker.
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
What form a part for specification drawings describes embodiment of the present utility model, and together with the description for explaining principle of the present utility model.
Fig. 1 is the structure chart of shell fragment described in the utility model specific embodiment;
Fig. 2 is the enlarged drawing of pad described in the utility model specific embodiment;
Fig. 3 is the part explosive view of loadspeaker structure described in the utility model specific embodiment;
Fig. 4 is the structure chart of shell fragment described in the utility model specific embodiment;
Fig. 5 is the structure chart of shell fragment and shell injection mo(u)lding described in the utility model specific embodiment;
Fig. 6 is the partial sectional view of loadspeaker structure described in the utility model specific embodiment.
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.
The technology and equipment known for person of ordinary skill in the relevant may not discuss in detail, but in the appropriate case, described technology and equipment 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 utility model provides a kind of loadspeaker structure, comprising vibration component, magnetic circuit system, shell and shell fragment.Described shell is for carrying described vibration component and magnetic circuit system, and described shell fragment is fixing on the housing.In order to save space, described shell fragment usually can with described shell integrated injection molding.Those skilled in the art also can adopt and arrange shell fragment slot on shell, and shell fragment is fixed on the housing by mode shell fragment being inserted shell.Described shell fragment comprises first surface and second surface, shell fragment has for carrying out the pad welded.When described vibration component is connected with shell fragment, lead-in wire and the pad solder of shell fragment, realize electrical connection.Usually, described pad comprises the first pad be positioned on described first surface.Especially, on described second surface, the position corresponding with the position of described first pad, is coated with heat-barrier material.Described heat-barrier material is used for isolated heat conduction between shell fragment and shell, and the heat produced when pad and wire bonds cannot directly pass on shell, the casing deformation that described heat-barrier material can avoid high temperature to cause.
In a particular embodiment, as shown in Figure 1, described shell fragment 1 has two pads, described pad comprises the first pad 21 and the second pad 22, and described second pad 22 is also positioned on described first surface 11.Accordingly, as shown in Figure 2, on described second surface 12, the position corresponding with the position of described first pad 21, is coated with heat-barrier material 3 equally.When loudspeaker vibration assembly and pad solder, the heat of welding directly can not pass to described shell from the second surface 12 of described shell fragment 1, causes shell to melt distortion.Described heat-barrier material 3 also prevent melting wlding and flows out from the fabrication hole be arranged in below pad.
Preferably, as shown in Figure 1, 2, those skilled in the art can cover heat-barrier material 3 on whole second surface 12, and by completely isolated between described second surface 12 and described shell, the heat that welding is produced can not directly pass to shell from second surface 12.On the other hand, the second surface 12 of described shell fragment 1 is covered by described heat-barrier material 3 completely, and the wlding of melting is difficult to flow into fabrication hole from the gap of described shell fragment 1 both sides.So the shell fragment 1 second surface 12 being coated with completely heat-barrier material 3 better can protect shell and the miscellaneous part of loud speaker.
Further, described heat-barrier material 3 can comprise the first heat-barrier material and the second heat-barrier material, and described second heat-barrier material covers on described second surface 12, and described first heat-barrier material covers on described first surface 11.Due to described first surface 11 having the first pad 21, when described first heat-barrier material covers on described first surface 11, guarantee the first pad 21 on first surface 11 to come out.When described first surface 11 having the first pad 21 and the second pad 22, the first heat-barrier material covered on described first surface 11 should guarantee described first pad 21 and the second pad 22 to come out.
In another kind of embodiment, described pad can comprise the first pad 21 being positioned at described first surface 11 and the second pad 22 be positioned on second surface 12, that is, the first pad 21 and the second pad 22 are positioned on the different surfaces of described shell fragment 1.Different according to the topology layout of loud speaker, described first pad 21 and the second pad 22 can lay respectively at the first surface 11 of shell fragment 1 and second surface 12, two pads are connected with holding wire respectively at described vibration component from different directions.
Because described pad is distributed in the different surfaces of described shell fragment 1, so heat-barrier material 3 also can comprise the first heat-barrier material and the second heat-barrier material.Described first heat-barrier material covers on described first surface 11, and described first heat-barrier material should expose the first pad 21 be positioned on described first surface 11.Described second heat-barrier material covers on described second surface 12, and described second heat-barrier material should expose the second pad 22 be positioned on described second surface 12.
In embodiment of the present utility model, as shown in Figure 3, described vibration component can comprise vibrating diaphragm 4, voice coil loudspeaker voice coil 51 and two voice coil leads 52.Two voice coil leads 52 are electrically connected respectively at holding wire 6, form signal circuit.So described loadspeaker structure comprises two shell fragments 1 and holding wire 6.First pad 21 of two shell fragments 1 can weld with described voice coil leads 52 respectively, and two the second pads 22 can weld with holding wire 6 respectively, thus forms signal circuit.As shown in Figure 4,5, two shell fragments 1 can be arranged side by side, and injection mo(u)lding is inner at described shell 01.The pad of two shell fragments 1 is exposed to the surface of described shell 01, for being electrically connected with described vibration component and holding wire 6.Described magnetic circuit system 7 is arranged in described shell 01, make described voice coil loudspeaker voice coil 51 be arranged in the magnetic gap of magnetic circuit system 7, described voice coil loudspeaker voice coil 51 receives voice signal from voice coil leads 52, and produces vibration under the effect in the magnetic field that magnetic circuit system 7 produces, thus drive described vibrating diaphragm 4 to vibrate, sound.
Especially, described heat-barrier material 3 can be kapton polyimide film, also can be other high-temperature plastic.The conductive coefficient of described heat-barrier material 3 should be less than or equal to 0.12k.mm, and heatproof is more than or equal to more than 150 DEG C.Before described shell fragment 1 is injection-moulded in shell 01, on the first surface 11 or second surface 12 of shell fragment 1, at least heat-barrier material 3 described in compound one deck.
Described loadspeaker structure can also comprise bonnet 8, and as shown in Figure 3, described bonnet 8 is arranged on after described shell 01, described magnetic circuit system 7 and vibration component is enclosed in described shell 01.
Fig. 6 shows the internal structure of loadspeaker structure described in the utility model, and wherein a voice coil leads 52 is welded on described first pad 21, and the Liang Ge branch of holding wire 6 is welded on the second pad 22 of two shell fragments 1 respectively.The second surface 12 of described shell fragment 1 is coated with heat-barrier material 3, the shell 01 immediately below pad exists fabrication hole.When described voice coil leads 52, holding wire 6 are with described pad solder, the heat of welding can not directly be delivered to shell 01 from second surface 12, prevents the problem of shell 01 overheating deforming.On the other hand, heat-barrier material 3 also can prevent melting wlding from flowing into fabrication hole, avoids short circuit and parts damages that melting wlding causes.
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 loadspeaker structure, is characterized in that, comprising:
Vibration component;
Magnetic circuit system (7);
For carrying the shell (01) of described vibration component and magnetic circuit system (7);
Be fixed on the shell fragment (1) on described shell (01), described shell fragment (1) comprises first surface (11) and second surface (12), described shell fragment (1) has pad, and described pad comprises the first pad (21) be positioned on described first surface (11);
The position that described second surface (12) is corresponding with described first pad (21) is coated with heat-barrier material (3).
2. loadspeaker structure according to claim 1, it is characterized in that, described pad comprises the second pad (22) be positioned on described first surface (11), and the position that described second surface (12) is corresponding with described second pad (22) is coated with heat-barrier material (3).
3. loadspeaker structure according to claim 1, it is characterized in that, described pad comprises the second pad (22) be positioned on described second surface (12), and the position that described first surface (11) is corresponding with described second pad (22) is coated with heat-barrier material (3).
4. loadspeaker structure according to claim 1 and 2, is characterized in that, described heat-barrier material (3) covers whole described second surface (12).
5. loadspeaker structure according to claim 1, it is characterized in that, described heat-barrier material (3) comprises the first heat-barrier material and the second heat-barrier material, described second heat-barrier material covers on second surface (12), described first heat-barrier material covers on described first surface (11), and described first heat-barrier material exposes described first pad (21) on described first surface (11).
6. loadspeaker structure according to claim 3, is characterized in that, described heat-barrier material (3) comprises the first heat-barrier material and the second heat-barrier material;
Described first heat-barrier material covers on described first surface (11), and described first heat-barrier material exposes described first pad (21);
Described second heat-barrier material covers on described second surface (12), and described second heat-barrier material exposes described second pad (22).
7. loadspeaker structure according to claim 1, is characterized in that, described loadspeaker structure comprises two shell fragments (1), and two shell fragments (1) are electrically connected with described vibration component respectively.
8. loadspeaker structure according to claim 1, is characterized in that, described shell fragment (1) injection mo(u)lding is in described shell (01), and described pad is exposed to the surface of described shell (01).
9. loadspeaker structure according to claim 1, is characterized in that, described heat-barrier material (3) is polyimide film.
10. the loadspeaker structure according to claim 1 or 7, is characterized in that, described vibration component comprises vibrating diaphragm (4), voice coil loudspeaker voice coil (51) and two voice coil leads (52);
Described voice coil loudspeaker voice coil (51) is fixedly connected with described vibrating diaphragm (4), and described voice coil leads (52) is drawn from described voice coil loudspeaker voice coil (51);
Described voice coil leads (52) is electrically connected with two shell fragments (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280797.5U CN204559873U (en) | 2015-05-04 | 2015-05-04 | A kind of loadspeaker structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280797.5U CN204559873U (en) | 2015-05-04 | 2015-05-04 | A kind of loadspeaker structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559873U true CN204559873U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520280797.5U Expired - Fee Related CN204559873U (en) | 2015-05-04 | 2015-05-04 | A kind of loadspeaker structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204559873U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105392072A (en) * | 2015-12-02 | 2016-03-09 | 歌尔声学股份有限公司 | Rear cover for loudspeaker and loudspeaker |
| CN108899351A (en) * | 2018-07-13 | 2018-11-27 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110730402A (en) * | 2019-09-06 | 2020-01-24 | 华为技术有限公司 | Earphone set |
-
2015
- 2015-05-04 CN CN201520280797.5U patent/CN204559873U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105392072A (en) * | 2015-12-02 | 2016-03-09 | 歌尔声学股份有限公司 | Rear cover for loudspeaker and loudspeaker |
| CN105392072B (en) * | 2015-12-02 | 2019-01-18 | 歌尔股份有限公司 | Rear cover and loudspeaker for loudspeaker |
| CN108899351A (en) * | 2018-07-13 | 2018-11-27 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110730402A (en) * | 2019-09-06 | 2020-01-24 | 华为技术有限公司 | Earphone set |
| CN110730402B (en) * | 2019-09-06 | 2021-05-18 | 华为技术有限公司 | Earphone set |
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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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20200504 |