CN103188591A - Horn - Google Patents
Horn Download PDFInfo
- Publication number
- CN103188591A CN103188591A CN 201110450156 CN201110450156A CN103188591A CN 103188591 A CN103188591 A CN 103188591A CN 201110450156 CN201110450156 CN 201110450156 CN 201110450156 A CN201110450156 A CN 201110450156A CN 103188591 A CN103188591 A CN 103188591A
- Authority
- CN
- China
- Prior art keywords
- washer
- loudspeaker
- magnet
- voice coil
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
A horn comprises a basin stand, a magnetic circuit system which is fixed on the basin stand, a vibrating film which is combined on the basin stand, and a voice coil, wherein the upper end of the voice coil is fixed to the vibrating film, and the lower end of the voice coil penetrates into a magnetic gap of the magnetic circuit system. The horn is characterized in that the magnetic circuit system comprises a base seat, a first magnet which is fixed relative to the base seat, an inner washer and an outer washer, wherein the outer washer surrounds the inner washer and the magnetic gap is formed between the inner washer and the outer washer. The horn has high sensitivity and high power.
Description
Technical field
The present invention relates to a kind of sound-producing device, relate in particular to a kind of loudspeaker.
Background technology
In the existing moving-coil type loudspeaker, magnetic and two kinds of forms of ring magnetic centered by its Drive Structure can be divided.This center magnetic-type Drive Structure generally includes a base and is located at this base interior a washer and a magnet.This Drive Structure forms a magnetic field and moves to drive voice coil loudspeaker voice coil, thereby sounds.In some application scenario, for obtaining more high-power and higher sensitivity, often adopt the loudspeaker of large-size to realize.So, will increase the overall volume of loudspeaker.
Summary of the invention
In view of this, be necessary to provide a kind of tool more high-power with higher sensitivity and loudspeaker with smaller size smaller.
A kind of loudspeaker, it comprises that a basin frame, is fixed in vibrating diaphragm and a voice coil loudspeaker voice coil that magnetic circuit system, on the basin frame is incorporated into the basin frame, the upper end of this voice coil loudspeaker voice coil is fixed to vibrating diaphragm, the lower end penetrates in the magnetic gap of magnetic circuit system, this magnetic circuit system comprises a base and fixing one first magnet, interior washer and the outer washer of relative base, be somebody's turn to do outer washer around washer in this, washer reached between the outer washer in this magnetic gap was formed at.
Compare prior art, in the above-mentioned loudspeaker, by inside and outside washer is set, can increase the magnetic flux of magnetic gap in magnetic circuit system, make the more magnetic line of force pass voice coil loudspeaker voice coil.Under the situation that does not increase the loudspeaker volume, make the power of these loudspeaker be enhanced and the sensitivity of loudspeaker is improved.
Description of drawings
With reference to the accompanying drawings, in conjunction with the embodiments the present invention is further described.
Fig. 1 is the cutaway view of loudspeaker first embodiment of the present invention.
Fig. 2 is the cutaway view of loudspeaker second embodiment of the present invention.
The main element symbol description
| Loudspeaker | 100 |
| The |
11 |
| The |
111 |
| The top | 112 |
| |
12 |
| |
121 |
| |
122 |
| |
123 |
| Groove | 124 |
| |
126 |
| Cushion block | 13 |
| |
14 |
| |
15 |
| |
16 |
| Voice coil |
17 |
| |
171 |
| |
172 |
| |
18 |
| |
19 |
| |
20 |
| |
30 |
| Groove | 300 |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Figure 1 shows that a preferred embodiment of loudspeaker 100 of the present invention.These loudspeaker 100 comprise that washer 15 in a basin frame 11, a base 12, a cushion block 13, one first magnet 14, one, an outer washer 30, one second magnet 16, a voice coil loudspeaker voice coil 17, a vibrating diaphragm 18, a dust cap 19 and play ripple 20.
This basin frame 11 roughly is bowl-shape, and it has less bottom 111 and a bigger top 112.This base 12 roughly is the cylindric of hollow, and it comprises the sidewall 122 that the base plate 121 of a circle reaches by the upwardly extending annular of the periphery of this base plate 121.This base plate 121 surrounds the receiving space 123 that forms a column with sidewall 122.Smoothly be concaved with the groove 124 of an annular on the internal face of this sidewall 122, this groove 124 reduces gradually in the degree of depth first increase gradually from top to bottom of this base 12 again.The top of this groove 124 is near the top of sidewall 122.In the present embodiment, the cross section of this groove 124 is the arc of indent.Should outer washer 30 be fixed in sidewall 122 tops by mode such as bonding.Be somebody's turn to do outer washer 30 ringwise, its outside wall surface flushes with the outside wall surface of sidewall 122, and internal face flushes with the internal face that sidewall 122 is positioned at groove 124 belows.Should be made by the lower mild steel of phosphorus content, stainless steel or other permeability magnetic materials by outer washer 30, it is used for the magnetic line of force of first magnet 14 and second magnet 16 is fettered, and magnetic power is concentrated also propagated along the direction of vertical inner circumferential surface equably.Be somebody's turn to do outer washer 30 and offer the groove 300 of an annular at its end face near the position of outside wall surface.The bottom 111 of this basin frame 11 is inserted in this groove 300, thereby fixes with outer washer 30.
This cushion block 13, first magnet 14, interior washer 15 and second magnet 16 all are round pie, this cushion block 13 is located in the receiving space 123 of base 12 and is attached on the end face of base plate 121 of base 12, and this first magnet 14, interior washer 15 and second magnet 16 are stacked and placed on this cushion block 13 successively.Wherein, this cushion block 13 is made by the material of tool magnetic property, and washer 15 is by making with outer washer 30 identical materials in this.The diameter of washer 15 is greater than the diameter of first magnet 14 and second magnet 16 in being somebody's turn to do.The bottom surface of washer 15 is higher than the groove 124 of base 12 in described, and end face is concordant with the end face of outer washer 30.16 end faces that protrude from outer washer 30 of this second magnet.Form the magnetic gap 126 of an annular between the sidewall 122 of this base 12 and the internal face of outer washer 30 and cushion block 13, first magnet 14 and the interior washer 15.The outside wall surface of washer 15 arranges with the internal face opposing parallel of outer washer 30 in being somebody's turn to do, thus, under inside and outside washer 15,30 acting in conjunction, two magnet 14,16 the magnetic line of force will more evenly reach the concentrated area vertical in the outside wall surface of washer 15 and the internal face of outer washer 30 propagate, make the bigger magnetic flux density of magnetic gap 126 acquisitions.The thickness of present embodiment China and foreign countries washer 30 is greater than the thickness of interior washer 15, and certainly, the thickness of outer washer 30 also can be identical with the thickness of interior washer 15.
This voice coil loudspeaker voice coil 17 comprises the skeleton 171 of a tubular and is wrapped in a coil 172 of the lower end setting of also close skeleton 171 on these skeleton 171 outer peripheral faces.This voice coil loudspeaker voice coil 17 is sheathed on the periphery of second magnet 16 and interior washer 15, and the lower end of voice coil loudspeaker voice coil 17 stretches in the magnetic gap 126.The coil 172 of this voice coil loudspeaker voice coil 17 is washer 30 outside interior washer 15 reaches, and is higher than the groove 124 of base 12.This dust cap 19 is sheathed on the upper end of voice coil loudspeaker voice coil 17 and is bonded together with the skeleton 171 of voice coil loudspeaker voice coil 17.This vibrating diaphragm 18 is tapered, and it has one than small end and a bigger end.This vibrating diaphragm 18 is located in the basin frame 11, being bonded on the dust cap 19 to fix with voice coil loudspeaker voice coil 17 than small end of vibrating diaphragm 18, and the bigger end of vibrating diaphragm 18 and the top 112 of basin frame 11 fix.This plays ripple 20 ringwise, and it is sheathed on the periphery of voice coil loudspeaker voice coil 17.Described bullet ripple 20 fixes between the bottom 111 of vibrating diaphragm 18 and basin frame 11 and with the bottom 111 of basin frame 11.
In the above-mentioned loudspeaker 100, constituted the magnetic circuit system of these loudspeaker 100 jointly by base 12, cushion block 13, first magnet 14, interior washer 15, outer washer 30 and second magnet 16, drive voice coil loudspeaker voice coil 17 motions to form a magnetic field, and drive vibrating diaphragm 18 vibrations by voice coil loudspeaker voice coil 17, thereby sound.Because inside and outside washer 15,30 constraint effect, magnetic gap 126 can be concentrated and be passed equably to the magnetic line of force of first magnet 14 and second magnet 16, coil 172 suffered actuating forces are increased, and amplitude increases, so that loudspeaker 100 obtain bigger power and higher sensitivity.And, be arranged with groove 124 by the internal face at the sidewall 122 of base 12, can change the direction of the magnetic line of force in this base 12, make the more magnetic line of force pass the coil 172 of voice coil loudspeaker voice coil 17, with the magnetic flux density of further lifting magnetic gap 126.In addition, the degree of depth of the groove 124 on this base 12 from top to bottom increases gradually earlier and reduces gradually, thereby guarantees that the magnetic line of force in this base 12 can seamlessly transit, and produces noise when avoiding these loudspeaker 100 work, has significantly reduced the distortion of sound.
In the above-mentioned loudspeaker 100, be provided with cushion block 13 between the base plate 121 of first magnet 14 and base 12, in order to provide enough oscillation spaces for voice coil loudspeaker voice coil 17.In other embodiments, also can not establish cushion block 13, and directly first magnet 14 is attached on the base plate 121 of this base 12.In these loudspeaker 100, the end face of interior washer 15 is provided with second magnet 16, this second magnet 16 can be revolted the magnetic force of first magnet 14, make the magnetic line of force in magnetic field strengthen guiding voice coil loudspeaker voice coil 17, thereby the magnetic flux density of passing through the coil 172 of voice coil loudspeaker voice coil 17 also increases thereupon, can reach the power of further increase loudspeaker 100 and the sensitivity that improves loudspeaker 100.
Be appreciated that ground, this base 12 can also not form groove 124 on the wall within it, but can make the more magnetic line of force pass magnetic gap 126 by additive method, reduce such as sidewall 122 thickness with base 12 shown in Figure 2, the inner of washer 15 to projecting inward, can reach the effect that promotes magnetic flux density with respect to the internal face of the sidewall 122 of base 12 equally in making.In addition, this base 12 can also be inverted T iron, the i.e. low shape in the inboard high outside, this moment first magnet 14 and second magnet 16 and size need become big and be the ring-type identical with outer washer 30, be arranged at jointly on the lower outside of T iron with outer washer 30 then; 15 of interior washers are directly fixed on the inboard of protrusion of T iron.
Claims (10)
1. loudspeaker, it comprises that a basin frame, is fixed in vibrating diaphragm and a voice coil loudspeaker voice coil that magnetic circuit system, on the basin frame is incorporated into the basin frame, the upper end of this voice coil loudspeaker voice coil is fixed to vibrating diaphragm, the lower end penetrates in the magnetic gap of magnetic circuit system, it is characterized in that: this magnetic circuit system comprises a base and fixing one first magnet, interior washer and the outer washer of relative base, be somebody's turn to do outer washer around washer in this, washer reached between the outer washer in this magnetic gap was formed at.
2. loudspeaker as claimed in claim 1 is characterized in that: washer is fixed on first magnet in this.
3. loudspeaker as claimed in claim 2, it is characterized in that: this magnetic circuit system also comprises one second magnet, on the washer, washer was between first magnet and second magnet in this in this second magnet was fixed in.
4. loudspeaker as claimed in claim 1 is characterized in that: this outer washer with should in washer be in alignment with each other.
5. as each described loudspeaker of claim 1 to 4, it is characterized in that: this base comprises a base plate and by the upwardly extending sidewall of base plate periphery, this outer washer is fixed on this sidewall.
6. loudspeaker as claimed in claim 5, it is characterized in that: this first magnet is fixed on the base plate of base by a cushion block.
7. loudspeaker as claimed in claim 5 is characterized in that: form the groove of an annular on the internal face of the sidewall of this base, the degree of depth of this groove increases afterwards earlier from top to bottom and reduces.
8. loudspeaker as claimed in claim 5 is characterized in that: the inner of this outer washer with respect to the internal face of the sidewall of base to projecting inward.
9. loudspeaker as claimed in claim 1 is characterized in that: the end face of this outer washer is formed with groove near the position of lateral wall, and the bottom of this basin frame is fixed in this groove.
10. loudspeaker as claimed in claim 1, it is characterized in that: the thickness of this outer washer is greater than the thickness of interior washer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450156 CN103188591A (en) | 2011-12-29 | 2011-12-29 | Horn |
| TW101100007A TW201328372A (en) | 2011-12-29 | 2012-01-02 | Speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450156 CN103188591A (en) | 2011-12-29 | 2011-12-29 | Horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103188591A true CN103188591A (en) | 2013-07-03 |
Family
ID=48679481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110450156 Pending CN103188591A (en) | 2011-12-29 | 2011-12-29 | Horn |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103188591A (en) |
| TW (1) | TW201328372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484084A (en) * | 2017-09-27 | 2017-12-15 | 嘉兴市金利达电子有限公司 | A kind of diaphragm of loudspeaker system of anticreep even |
| WO2024022484A1 (en) * | 2022-07-28 | 2024-02-01 | 潍坊歌尔丹拿电子科技有限公司 | Sound production apparatus and terminal device |
| WO2024022489A1 (en) * | 2022-07-28 | 2024-02-01 | 潍坊歌尔丹拿电子科技有限公司 | Sound production apparatus and terminal device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828246B (en) * | 2016-05-19 | 2019-04-02 | 青岛歌尔声学科技有限公司 | A kind of woofer |
-
2011
- 2011-12-29 CN CN 201110450156 patent/CN103188591A/en active Pending
-
2012
- 2012-01-02 TW TW101100007A patent/TW201328372A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484084A (en) * | 2017-09-27 | 2017-12-15 | 嘉兴市金利达电子有限公司 | A kind of diaphragm of loudspeaker system of anticreep even |
| CN107484084B (en) * | 2017-09-27 | 2023-09-05 | 嘉兴市金利达电子有限公司 | Anti-disconnection loudspeaker diaphragm system |
| WO2024022484A1 (en) * | 2022-07-28 | 2024-02-01 | 潍坊歌尔丹拿电子科技有限公司 | Sound production apparatus and terminal device |
| WO2024022489A1 (en) * | 2022-07-28 | 2024-02-01 | 潍坊歌尔丹拿电子科技有限公司 | Sound production apparatus and terminal device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201328372A (en) | 2013-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130703 |