CN206963072U - A kind of loudspeaker - Google Patents
A kind of loudspeaker Download PDFInfo
- Publication number
- CN206963072U CN206963072U CN201720871871.XU CN201720871871U CN206963072U CN 206963072 U CN206963072 U CN 206963072U CN 201720871871 U CN201720871871 U CN 201720871871U CN 206963072 U CN206963072 U CN 206963072U
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- China
- Prior art keywords
- magnetic
- conductive board
- magnet
- depressed part
- magnetic conductive
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a kind of loudspeaker, including vibrational system and magnetic circuit system, and the magnetic circuit system includes conductive magnetic yoke and the centring magnet being placed in conductive magnetic yoke, and the upper surface of the centring magnet, which combines, is fixed with center magnetic conductive board；The centring magnet includes the first depressed part formed that caved inward by centring magnet upper surface of combination corresponding with center magnetic conductive board, and the center magnetic conductive board includes the first lug boss formed by center magnetic conductive board lower surface outwardly convex corresponding with the first depressed part.By in magnetic circuit system between magnetic conductive board and magnet structure improvement, at center, the lower surface of magnetic conductive board sets the first lug boss, magnetic blow out centre leakage field can be reduced, avoid the complete machine antenna as caused by leakage field bad, the first depressed part is set in centring magnet upper surface simultaneously, add the bond area of magnetic conductive board and magnet and deposit glue amount, increase magnetic conductive board and magnet adhesive strength and the uniformity, lift the resistance to stability for falling reliability test.
Description
Technical field
Electro-acoustic product technical field is the utility model is related to, more particularly, to a kind of loudspeaker.
Background technology
Loudspeaker is a kind of device that can convert electrical energy into acoustic energy, belongs to most basic phonation unit, miniature to raise one's voice
Device monomer is the important acoustical device of portable electric appts, and it is widely used in the terminal devices such as mobile phone.Loudspeaker monomer
It is made up of vibrational system and magnetic circuit system, the function that basic electric energy is converted to acoustic energy can be completed.
Loudspeaker includes the shell formed with receiving space and the vibrational system being contained in shell and magnetic circuit system.Raise one's voice
The shell of device, which is provided with, is used to connecting the electrical connector of external circuit in loudspeaker, electrical connector respectively with voice coil leads and external electrical
Road is electrically connected, and so as to turn on external circuit and voice coil leads, electric energy is inputted voice coil loudspeaker voice coil by external circuit via voice coil leads, so that
Voice coil vibrations are made by electromagnetic induction principle in loudspeaker, voice coil vibrations drive diaphragm oscillations sounding, so that electric energy is converted into
Acoustic energy, realize the vocal function of loudspeaker.Wherein the structure of magnetic circuit system provides power to loudspeaker, and the performance of loudspeaker is risen
Decisive role.Usual magnetic circuit system includes magnetic conductive board, magnet and conductive magnetic yoke.The fall-down test of loudspeaker is checking loudspeaker
The adhesive strength and uniformity of the Key experiments of reliability, magnetic conductive board and magnet are for directly affecting the result of fall-down test.Mesh
Magnetic circuit system as previous is magnetic conductive board and magnet plane adhesion by the way of, and this bonding way can cause magnetic conductive board and magnet
It is less that bonding deposits glue amount, strict to gluing uniformity and coherence request.
Based on above-mentioned problem, it is desirable to provide a kind of loadspeaker structure, with overcome present in prior art lack
Fall into.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of loudspeaker, by magnetic conductive board in magnetic circuit system with
The improvement of structure between magnet, can reduce magnetic blow out centre leakage field, avoid the complete machine antenna as caused by leakage field bad, and pass through this
The improvement of structure also add the bond area of magnetic conductive board and magnet and deposit glue amount, and then can increase magnetic conductive board and magnet bonding
Intensity and the uniformity, lift the resistance to stability for falling reliability test.
In order to solve the above technical problems, the utility model provides a kind of loudspeaker, the loudspeaker include vibrational system and
Magnetic circuit system；
The magnetic circuit system includes conductive magnetic yoke and the centring magnet being placed in the conductive magnetic yoke, the upper table of the centring magnet
Face combines and is fixed with center magnetic conductive board；
The centring magnet caves inward what is formed including combination corresponding with center magnetic conductive board by centring magnet upper surface
First depressed part, the center magnetic conductive board are formed including corresponding with the first depressed part by center magnetic conductive board lower surface outwardly convex
The first lug boss.
Further, first depressed part and the first lug boss are located at the centring magnet and the center magnetic conduction respectively
The medium position of plate.
Further, the depth of first depressed part is identical with the height of first lug boss.
Further, the magnetic circuit system further comprises：
Symmetrical two or four side magnet positioned at the conductive magnetic yoke marginal position around the centring magnet；And
Symmetrical two or four is separately positioned in the while magnetic conductive board on magnet；
The magnetic gap for accommodating voice coil loudspeaker voice coil is formed between the centring magnet and side magnet.
Further, it is described while magnet include with while magnetic conductive board corresponding combination caved inward and formed by side magnet upper surface
The second depressed part, it is described while magnetic conductive board include it is corresponding with the second depressed part by while magnetic conductive board lower surface outwardly convex formed
Second lug boss.
Further, the loudspeaker also includes the housing with annular sidewall, described side magnetic conductive board one end and annular side
Wall is adhesively fixed or integrated injection molding, and the other end extends to away from annular sidewall inner surface direction.
Further, the housing includes the installation portion with the hollow out of magnetic circuit system assembling, the lower surface of the conductive magnetic yoke
It is exposed to outside housing.
Further, the faying face coating bonded adhesives that first depressed part is in contact with the first lug boss；Described second
The faying face coating bonded adhesives that depressed part is in contact with the second lug boss.
Further, first depressed part and the first lug boss are corresponding circular configuration, rectangular configuration or fillet square
Shape structure；Second depressed part and the second lug boss are corresponding circular configuration, rectangular configuration or round rectangle structure.
Further, first depressed part is the groove of not vertically communicated centring magnet upper and lower surface；It is described
Second depressed part is the groove of not vertically communicated side magnet upper and lower surface.
The beneficial effects of the utility model are as follows：
The utility model is by above technical scheme, by structure changes between magnetic conductive board and magnet in magnetic circuit system
Enter, at center, the lower surface of magnetic conductive board sets the first lug boss, can reduce magnetic blow out centre leakage field, avoid whole as caused by leakage field
Machine antenna is bad, while sets the first depressed part in centring magnet upper surface, add magnetic conductive board and magnet bond area and
Glue amount is deposited, increases magnetic conductive board and magnet adhesive strength and the uniformity, lifts the resistance to stability for falling reliability test.
Loudspeaker of the present utility model, the second depressed part can be set on the magnet of side simultaneously, correspondingly be set in the magnetic conduction version of side
Put the second lug boss, can so increase simultaneously while magnet and while magnetic conductive board between bond area and deposit glue amount, increase bonds
Intensity.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings；
Fig. 1 shows a kind of overall structure diagram of loudspeaker of the present utility model；
Fig. 2 shows a kind of motor structure schematic diagram of loudspeaker of the present utility model；
Fig. 3 shows a kind of magnetic circuit system profile of loudspeaker of the present utility model；
Fig. 4 shows the partial enlarged drawing in A portions in Fig. 3.
Drawing reference numeral：1 shell, 2 voice coil loudspeaker voice coils, 3 vibrating diaphragms, 4 reinforcement parts, 5 center magnetic conductive boards, 501 first lug bosses, 6 center magnetic
Iron, 601 first depressed parts, 602 side magnet, 7 conductive magnetic yokes.
Embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
Referring to Fig. 1-Fig. 4, Fig. 1 shows a kind of structural representation of loudspeaker of the present utility model；Fig. 2 shows that this practicality is new
A kind of motor structure schematic diagram of loudspeaker of type；Fig. 3 shows that a kind of magnetic circuit system of loudspeaker of the present utility model cuts open
Face figure；Fig. 4 shows the partial enlarged drawing in A portions in Fig. 3.Based on technical problem to be solved in the utility model, solves existing skill
In art magnetic conductive board and magnet plane adhesion mode magnetic conductive board and magnet can be caused to be bonded to deposit glue amount less, to gluing uniformity and one
Cause property requires the problem of strict.
Loudspeaker of the present utility model is equally applicable to the loudspeaker monomer of no shell mechanism, present embodiment with
It is specifically addressed exemplified by the structure of case body.The utility model provides a kind of loudspeaker, and the loudspeaker includes housing 1,
The housing 1 includes annular sidewall, and vibrational system and magnetic circuit system are contained in the housing 1.The vibrational system includes shaking
Film 3 and the voice coil loudspeaker voice coil 2 for being incorporated into the lower section of vibrating diaphragm 3, the vibrating diaphragm 3 include vibrating diaphragm body and are incorporated into the reinforcement in vibrating diaphragm body plane portion
Portion 4.
The magnetic circuit system includes center magnetic conductive board 5, centring magnet 6 and conductive magnetic yoke 7, the conductive magnetic yoke 7 and the housing 1
The shell mechanism of the loudspeaker is collectively formed, the housing 1 includes the installation portion with the hollow out of magnetic circuit system assembling, described to lead
The lower surface of yoke 7 is exposed to outside housing 1.
The center magnetic conductive board 5 of the magnetic circuit system is incorporated into the upper surface of the centring magnet 6；The centring magnet 6 wraps
The first depressed part 601 formed that caved inward by the upper surface of centring magnet 6 of combination corresponding with center magnetic conductive board 5 is included, in described
Heart magnetic conductive board 5 includes and 601 corresponding the first lug boss formed by the lower surface outwardly convex of center magnetic conductive board 5 of the first depressed part
501.The lug boss 501 of first depressed part 601 and first is respectively positioned at the centring magnet 6 and the center magnetic conductive board 5
Medium position.
Loudspeaker provided by the utility model in center magnetic conductive board 5 by setting the first lug boss 501 so that leads at center
Magnetic sheet 5 adds thickness in the position of the first lug boss 501, can so increase the center magnetic conduction of center magnetic conductive board 5, reduces
Center leakage field, avoid the complete machine antenna as caused by leakage field bad.By setting the first depression in the upper surface of centring magnet 6
Portion 601, the lower surface of center magnetic conductive board 5 set the first lug boss 501, increase the bond area of center magnetic conductive board 5 and centring magnet 6
With deposit glue amount, relative to the plane adhesion mode of magnetic conductive board of the prior art and magnet, increase center magnetic conductive board 5 and center magnetic
The adhesive strength of iron 6 and the uniformity, improve the resistance to stability for falling reliability test.
In order to be adapted to center magnetic conductive board 5 and centring magnet 6, the depth of first depressed part 601 is raised with described first
The height in portion 501 is identical.
Scheme is preferably carried out as one kind, the magnetic circuit system further comprises：Positioned at the marginal position of conductive magnetic yoke 7
Around the symmetrical two or four side magnet 602 of the centring magnet 6；And it is separately positioned on symmetrical two or four side magnetic
Side magnetic conductive board on iron 602；The magnetic gap for accommodating voice coil loudspeaker voice coil 2 is formed between the centring magnet 6 and side magnet 602.
As further preferably embodiment, it is described while magnet 602 include with while magnetic conductive board it is corresponding combination by side magnetic
The upper surface of iron 602 caves inward the second depressed part to be formed, it is described while magnetic conductive board include it is corresponding with the second depressed part by while lead
The second lug boss that magnetic sheet lower surface outwardly convex is formed.
By setting the second depressed part in the upper surface of side magnet 602, side magnetic conductive board lower surface sets the second lug boss, increases
The bond area of edged magnetic conductive board and side magnet 602 and glue amount is deposited, relative to the plane of magnetic conductive board of the prior art and magnet
Bonding way, increase while magnetic conductive board and while the adhesive strength of the magnet 602 and uniformity, improve the resistance to stabilization for falling reliability test
Property.
In loudspeaker described in the utility model, the housing 1 includes annular sidewall, described side magnetic conductive board one end and annular side
Wall is adhesively fixed or integrated injection molding, and the other end extends to away from annular sidewall inner surface direction.For the side magnetic conductive board
Structure and configuration mode, the utility model only provide a kind of preferred embodiment, and the side magnetic conductive board also can be directly in conjunction with fixation
On the magnet of side, the utility model is not restricted to this.
It is further preferred that being fixed for the ease of the combination between center magnetic conductive board 5 and centring magnet 6, described first is recessed
The faying face coating bonded adhesives that the portion of falling into is in contact with the first lug boss；For the ease of while magnetic conductive board and while magnet 601 between knot
Close and fix, the faying face coating bonded adhesives that second depressed part is in contact with the second lug boss.
It is further preferred that first depressed part and the first lug boss be corresponding circular configuration, rectangular configuration or
Round rectangle structure；First depressed part is the groove of not vertically communicated centring magnet upper and lower surface.
Second depressed part and the second lug boss are corresponding circular configuration, rectangular configuration or round rectangle structure；Institute
State the groove that the second depressed part is not vertically communicated side magnet upper and lower surface.The utility model is not restricted to this.
What the word " on ", " under " in description orientation, "left", "right" etc. were for explanation used by herein facilitates base
For orientation in accompanying drawing shown in drawing, in actual device these orientation may due to device disposing way and
It is different.
It should be appreciated that above-described embodiment of the present utility model is only intended to clearly illustrate the act that the utility model is made
Example, and it is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, above-mentioned
It can also make other changes in different forms on the basis of explanation, all embodiments can not be given thoroughly here
Lift, it is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
Protection domain row.
Claims (10)
1. a kind of loudspeaker, the loudspeaker includes vibrational system and magnetic circuit system, it is characterised in that
The magnetic circuit system includes conductive magnetic yoke and the centring magnet being placed in the conductive magnetic yoke, the upper surface knot of the centring magnet
Conjunction is fixed with center magnetic conductive board；
The centring magnet includes first formed that caved inward by centring magnet upper surface of combination corresponding with center magnetic conductive board
Depressed part, the center magnetic conductive board include it is corresponding with the first depressed part formed by center magnetic conductive board lower surface outwardly convex the
One lug boss.
A kind of 2. loudspeaker according to claim 1, it is characterised in that
First depressed part and the first lug boss are respectively positioned at the centring magnet and the medium position of the center magnetic conductive board.
A kind of 3. loudspeaker according to claim 2, it is characterised in that
The depth of first depressed part is identical with the height of first lug boss.
A kind of 4. loudspeaker according to claim 1, it is characterised in that
The magnetic circuit system further comprises：
Symmetrical two or four side magnet positioned at the conductive magnetic yoke marginal position around the centring magnet；And
Symmetrical two or four is separately positioned in the while magnetic conductive board on magnet；
The magnetic gap for accommodating voice coil loudspeaker voice coil is formed between the centring magnet and side magnet.
A kind of 5. loudspeaker according to claim 4, it is characterised in that
It is described while magnet include with while the corresponding combination of magnetic conductive board the second depressed part that is formed of being caved inward by side magnet upper surface,
It is described while magnetic conductive board include it is corresponding with the second depressed part by while the second lug boss for being formed of magnetic conductive board lower surface outwardly convex.
A kind of 6. loudspeaker according to claim 4, it is characterised in that
The loudspeaker also includes the housing with annular sidewall, and described side magnetic conductive board one end and annular sidewall are adhesively fixed or one
Body injection molding, the other end extend to away from annular sidewall inner surface direction.
A kind of 7. loudspeaker according to claim 6, it is characterised in that
The housing includes the installation portion with the hollow out of magnetic circuit system assembling, and the lower surface of the conductive magnetic yoke is exposed to outside housing.
A kind of 8. loudspeaker according to claim 5, it is characterised in that
The faying face coating bonded adhesives that first depressed part is in contact with the first lug boss；
The faying face coating bonded adhesives that second depressed part is in contact with the second lug boss.
A kind of 9. loudspeaker according to claim 5, it is characterised in that
First depressed part and the first lug boss are corresponding circular configuration, rectangular configuration or round rectangle structure；
Second depressed part and the second lug boss are corresponding circular configuration, rectangular configuration or round rectangle structure.
A kind of 10. loudspeaker according to claim 9, it is characterised in that
First depressed part is the groove of not vertically communicated centring magnet upper and lower surface；
Second depressed part is the groove of not vertically communicated side magnet upper and lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720871871.XU CN206963072U (en) | 2017-07-18 | 2017-07-18 | A kind of loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720871871.XU CN206963072U (en) | 2017-07-18 | 2017-07-18 | A kind of loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206963072U true CN206963072U (en) | 2018-02-02 |
Family
ID=61380782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720871871.XU Expired - Fee Related CN206963072U (en) | 2017-07-18 | 2017-07-18 | A kind of loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206963072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218117A1 (en) * | 2018-05-14 | 2019-11-21 | 华为技术有限公司 | Electroacoustic transducer and communication device |
-
2017
- 2017-07-18 CN CN201720871871.XU patent/CN206963072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218117A1 (en) * | 2018-05-14 | 2019-11-21 | 华为技术有限公司 | Electroacoustic transducer and communication device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20200718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |