CN205378194U - Passive radiator and audio amplifier - Google Patents
Passive radiator and audio amplifier Download PDFInfo
- Publication number
- CN205378194U CN205378194U CN201521082526.5U CN201521082526U CN205378194U CN 205378194 U CN205378194 U CN 205378194U CN 201521082526 U CN201521082526 U CN 201521082526U CN 205378194 U CN205378194 U CN 205378194U
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- core
- passive radiator
- vibrating
- support
- vibration
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- 230000008093 supporting effect Effects 0.000 claims description 30
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- 239000007924 injection Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
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- 239000004753 textile Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a passive radiator and audio amplifier, wherein, this passive radiator includes support, vibrating diaphragm and counterweight, a serial communication port, the vibrating diaphragm includes by the outer connecting portion that set gradually in to, hangs limit portion and vibration portion, wherein, connecting portion with support fixed connection, vibration portion with counterweight fixed connection, hang the limit position in connecting portion with between the vibration portion, and it is relative connecting portion and vibration portion are sunken, the same side surface of connecting portion and vibration portion is the cambered surface of evagination, the counterweight have with the shape of vibration portion adaptation. The utility model discloses the passive radiator can increase the inside chamber that holds of audio amplifier of arc casing, has promoted appearance chamber utilization ratio.
Description
Technical Field
The utility model relates to a audio amplifier technical field, in particular to passive radiator and audio amplifier.
Background
In order to improve the bass effect of the sound box, more and more sound boxes use passive radiators, and the popular sound box products with small volume are no exception. The small size of audio amplifier means that the inside appearance chamber of audio amplifier diminishes, and current passive radiator all is the flat plate shape, consequently, when the passive radiator of this kind of structure is applied to the audio amplifier that has evagination cambered surface outward appearance, can crowd and account for the more inside appearance chamber of audio amplifier, causes the inside appearance chamber of audio amplifier extravagant.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a passive radiator, and this passive radiator can improve the inside appearance chamber utilization ratio of audio amplifier.
In order to achieve the above object, the utility model provides a passive radiator, include the vibrating diaphragm includes connecting portion, the portion of hanging and the vibration portion that sets gradually by outer to interior, wherein, connecting portion with support fixed connection, vibration portion with counterweight fixed connection, the portion of hanging be located connecting portion with between the vibration portion, and relative connecting portion and vibration portion are sunken, the same side surface of connecting portion and vibration portion is the cambered surface of evagination, the counterweight have with the shape of vibration portion adaptation.
Preferably, the bracket comprises a top frame, a bottom frame, a fixed core supporting part and a fixed core; wherein,
the top frame is adjacent to the connecting part and is fixedly connected with the connecting part; the bottom frame is fixedly connected with the top frame;
the fixed core supporting part is arranged on the bottom frame, the periphery of the fixed core supporting part is fixedly connected with the bottom frame, the fixed core is positioned between the fixed core supporting part and the vibration part, and two ends of the fixed core supporting part are respectively connected with the fixed core supporting part and the vibration part.
Preferably, one end of the fixed core connected with the fixed core supporting part is arranged in the middle of the fixed core supporting part, and one end of the fixed core connected with the vibrating part is arranged in the middle of the vibrating part;
decide core supporting part and be the fretwork setting, including a plurality of connections the chassis reaches the linking arm of deciding the core, the linking arm certainly the chassis to it is snakelike extension setting to decide the core.
Preferably, the fixed core is arranged in a hollow cylinder shape.
Preferably, one end of the fixed core connected with the fixed core supporting part is annularly provided with a plurality of notches, and the notches extend along the axial direction of the fixed core.
Preferably, one surface of the vibrating portion facing the fixed core is provided with an annular flange, and one end of the fixed core connected with the vibrating portion is sleeved in the annular flange.
Preferably, the support still includes a plurality of connecting pieces of connecting roof-rack and chassis, the setting of connecting piece hoop interval is located between roof-rack and the chassis.
Preferably, the top frame, the bottom frame, the fixed core supporting part, the fixed core and the connecting piece are integrally formed.
The utility model also provides a sound box, which comprises a shell, a loudspeaker and the passive radiator, wherein the passive radiator comprises a bracket, a vibrating diaphragm and a counterweight; the diaphragm has a continuous surface and comprises a connecting part, a suspending part and a vibrating part which are arranged in sequence from outside to outside, wherein,
the connecting part is fixedly connected with the bracket, the suspension part is positioned at the periphery of the vibrating part, and the vibrating part is fixedly connected with the counterweight; the vibrating diaphragm is characterized in that the vibrating diaphragm is arranged in an arc shape, and the counterweight part has a shape matched with the vibrating part;
the shell is provided with an outer convex arc-shaped mounting surface, mounting holes for mounting the passive radiator are formed in the mounting surface, and the passive radiator is in arc-shaped arrangement matched with the mounting surface in shape.
Preferably, the housing is integrally injection molded with the bracket.
The utility model discloses passive radiator all sets up the appearance with vibrating diaphragm and counterweight through the adoption and is the arc, so, when this passive radiator is used to the audio amplifier that has the arc casing, can not crowd and account for the inside appearance chamber of audio amplifier, has increaseed the inside appearance chamber of audio amplifier casing to bass effect has been promoted from this.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of the sound box of the present invention;
FIG. 2 is a schematic view of a partially exploded structure of the speaker of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is a schematic front view of the enclosure of FIG. 1;
FIG. 6 is a schematic side view of the enclosure of FIG. 5;
FIG. 7 is a schematic cross-sectional view taken along line VII-VII of FIG. 5;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
fig. 9 is a schematic sectional view taken along line IX-IX in fig. 5.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Support frame | 15 | Connecting piece | 100 | Shell body |
| 11 | Top frame | 2 | Vibrating diaphragm | 101 | Mounting surface |
| 12 | Chassis | 21 | Connecting part | 102 | Mounting hole |
| 13 | Fixed core supporting part | 22 | Overhang part | 200 | Horn type loudspeaker |
| 131 | Connecting arm | 23 | Vibrating part | 300 | Passive radiator |
| 14 | Fixed core | 231 | Annular flange | ||
| 141 | Notch opening | 3 | Weight member |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
The utility model provides a passive radiator, please refer to fig. 1 to fig. 3, in an embodiment, this passive radiator 300 includes support 1, vibrating diaphragm 2 and counterweight 3, vibrating diaphragm 2 includes connecting portion 21, dangling limit portion 22 and the vibration portion 23 that sets gradually from outer to inner, wherein, connecting portion 21 and support 1 fixed connection, vibration portion 23 and counterweight 3 fixed connection, dangling limit portion 22 is located between connecting portion 21 and vibration portion 23, and relative connecting portion 21 and vibration portion 23 are sunken, connecting portion 21 and the same side surface of vibration portion 23 are the cambered surface of evagination, counterweight has the shape with vibration portion 23 adaptation.
In the audio amplifier, passive radiator 300's the effect lies in the bass of adjustment audio amplifier for the designer can adjust the holistic tone quality of audio amplifier, and during the use, passive radiator 300 carries out the sound production passively under the drive of the interior air of box at the interior active speaker unit of audio amplifier, the embodiment of the utility model provides an in, support 1 mainly used supports vibrating diaphragm 2 and weight 3 subassembly, and it can be independent of the audio amplifier, with audio amplifier casing 100 be assembled between/be connected between, also can set up with audio amplifier casing 100 an organic whole. For example, the bracket 1 and the sound box housing 100 may be made of plastic material, and are integrally formed with the sound box housing 100 through a mold.
The vibrating diaphragm 2 is used for vibrating under the action of the air pressure difference between the inside and the outside of the sound box shell 100, and the counterweight 3 is used for adjusting the vibration frequency. In order to fix the diaphragm 2 conveniently, a stepped surface may be provided at a joint of the support 1 and the diaphragm 2, and the diaphragm 2 may be bonded by an adhesive such as resin glue.
The diaphragm 2 may be provided integrally with the weight 3, for example, by injection molding. It will be appreciated that the material of the weight member 3 may be the same as the material of the diaphragm 2 when the power of the loudspeaker box is low, but in general, the material of the weight member 3 is different from the material of the diaphragm 2, for example, the material of the weight member 3 is iron, and the material of the diaphragm 2 may be made of rubber or thermoplastic material.
The vibrating diaphragm 2 and the weight part 3 are arranged in an outward convex arc shape, so that the appearance of the sound box with the outward convex arc appearance is consistent, the cavity inside the sound box shell 100 is enlarged, and the bass effect is improved. For example, when the sound box casing 100 has a cylindrical shape, the diaphragm 2 is disposed in an outwardly convex arc shape in a direction perpendicular to the axis of the casing 100; when the speaker housing 100 is spherical, the diaphragm 2 is convexly curved in any direction. It can be understood that, under the same condition of the vertical flow area of the opening, the passive radiator 300 of the embodiment can expand the cavity inside the sound box casing 100 on the one hand, and on the other hand, the pressure area of the passive radiator 300 is also increased, so that the low-frequency radiation quantity and the tone quality are improved.
The utility model discloses passive radiator 300 all sets up the appearance with vibrating diaphragm 2 and weight 3 through the adoption and is the arc, so, when this passive radiator 300 is used to the audio amplifier that has arc casing 100, can not crowd and account for the inside appearance chamber of audio amplifier, has increaseed the inside appearance chamber of audio amplifier casing 100 to bass effect has been promoted from this.
Further, referring to fig. 3, 4, and 7 to 9, in an embodiment, the bracket 1 includes a top frame 11, a bottom frame 12, a core fixing support portion 13, and a core fixing portion 14; wherein,
The top frame 11 is adjacent to the connecting part 21 and is fixedly connected with the connecting part 21; the bottom frame 12 is fixedly connected with the top frame 11 and is arranged at the periphery of the fixed core supporting part 13;
the fixed core supporting part 13 is arranged on the bottom frame 12, and the periphery of the fixed core supporting part 13 is fixedly connected with the bottom frame 12; the fixed core 14 is located between the fixed core supporting portion 13 and the vibrating portion 23, and both ends of the fixed core are respectively connected with the fixed core supporting portion 13 and the vibrating portion 23.
In the present embodiment, it is understood that the unbalanced movement caused by the deflection of the weight 3 may generate abnormal noise in the passive radiator 300, and the deflection of the weight 3 may be effectively limited by the connection of the vibrating portion 23 and the centering support portion 13 through the centering core 14. Specifically, the centering support 13 should have a certain elasticity to ensure that the weight 3 can normally vibrate. In practical application, the fixed core supporting portion 13 may be made of a sheet material made of chemical fiber textiles, or may be a hollow injection molding. The counterweight 3 is supported by the fixed core 14, so that the problem of unbalanced vibration of the counterweight 3 can be effectively solved, and low-frequency distortion or abnormal sound can be prevented.
Further, one end of the fixed core 14 connected with the fixed core supporting part 13 is arranged in the middle of the fixed core supporting part 13, and one end of the fixed core 14 connected with the vibrating part 23 is arranged in the middle of the vibrating part 23;
Decide core supporting part 13 and be the fretwork setting, including a plurality of linking arms 131 of connecting chassis 12 and deciding core 14, linking arm 131 is snakelike extension setting from chassis 12 to deciding core 14.
In this embodiment, it can be understood that, when the passive radiator 300 is operated, the amplitude of the vibration portion 23 at the center position is maximized, and a large amount of deformation can be obtained at the center position of the stationary core support portion 13, and therefore, on the premise of minimizing the loss of vibration energy, a good supporting and stabilizing effect can be obtained by connecting one end of the stationary core 14 to the center position of the vibration portion 23 and the other end to the center position of the stationary core support portion 13. In order to improve the flexibility of the centering support portion 13, the connecting arm 131 is disposed in a serpentine shape, so as to improve the elasticity to meet the requirement of the amplitude of the weight member 3.
Further, the fixed core 14 is a hollow cylinder, so that the material usage is reduced, on the other hand, the internal cavity of the sound box shell 100 can be further increased, and the inertia of the fixed core 14 in the follow-up process is reduced.
Further, one end of the stationary core 14 connected to the stationary core supporting portion 13 is annularly provided with a plurality of notches 141, and the notches 141 extend in the axial direction of the stationary core 14. In this embodiment, similarly, the notch 141 is disposed on the fixed core 14, so that the material usage can be further reduced, and in addition, the air pressure in the sound box casing 100 can be better balanced by disposing the notch 141, thereby improving the sound quality.
Further, an annular flange 231 is provided on a surface of the vibrating portion 23 facing the stationary core 14, and one end of the stationary core 14 connected to the vibrating portion 23 is fitted in the annular flange 231. In the present embodiment, the annular flange 231 is provided, so that the stationary core 14 can be well positioned and fixed, for example, when the stationary core 14 and the diaphragm 2 are bonded by using an adhesive, the annular flange 231 can be conveniently filled with the adhesive.
Further, the support 1 further comprises a plurality of connecting pieces 15 for connecting the top frame 11 and the bottom frame 12, and the connecting pieces 15 are circumferentially arranged between the top frame 11 and the bottom frame 12 at intervals. In this embodiment, compare and use annular lateral wall to connect roof-rack 11 and chassis 12, use the connecting piece 15 that a plurality of intervals set up, be equivalent to set up the fretwork hole at annular lateral wall, so, can strengthen the bradyseism nature of support 1, simultaneously, can well balance the atmospheric pressure in audio amplifier casing 100.
Further, the top frame 11, the bottom frame 12, the core fixing support portion 13, the core fixing 14, and the connecting member 15 are integrally formed, so that the assembly of the passive radiator 300 can be simplified, and the process cost can be saved.
The utility model discloses still provide a sound box, please refer to fig. 1, fig. 2, and fig. 5 and fig. 6, in an embodiment, this sound box includes casing 100, loudspeaker 200 and passive radiator 300, and the concrete structure of this passive radiator 300 refers to above-mentioned embodiment, because this sound box has adopted all technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is not repeated here one by one.
Specifically, in an embodiment, the housing 100 is provided in two separate parts, preferably, the two parts of the housing 100 are symmetrically provided, two horns 200 and two passive radiators 300 are respectively provided, the two horns 200 are oppositely arranged in a back direction, and the two passive radiators 300 are oppositely arranged in a back direction.
Further, in order to simplify the assembly of the whole speaker and thus save certain process and material costs, the housing 100 and the bracket 1 are integrally injection molded, and specifically, when an injection molding material is selected, the elasticity of the core support portion 13 should be considered to meet the requirement of the amplitude of the vibration of the passive radiator.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a passive radiator, includes support, vibrating diaphragm and weight, its characterized in that, the vibrating diaphragm includes connecting portion, suspension portion and the vibration portion that sets gradually by outer to interior, wherein, connecting portion with support fixed connection, vibration portion with weight fixed connection, suspension portion be located connecting portion with between the vibration portion, and relative connecting portion and vibration portion are sunken, the same side surface of connecting portion and vibration portion is the cambered surface of evagination, the weight have with the shape of vibration portion adaptation.
2. The passive radiator of claim 1, wherein the support comprises a top frame, a bottom frame, a core support, and a core; wherein,
the top frame is adjacent to the connecting part and is fixedly connected with the connecting part; the bottom frame is fixedly connected with the top frame;
the fixed core supporting part is arranged on the underframe, and the periphery of the fixed core supporting part is fixedly connected with the underframe; the fixed core is positioned between the fixed core supporting part and the vibrating part, and two ends of the fixed core are respectively connected with the fixed core supporting part and the vibrating part.
3. The passive radiator according to claim 2, wherein an end of the stationary core connected to the stationary core supporting portion is centrally provided on the stationary core supporting portion, and an end of the stationary core connected to the vibrating portion is centrally provided on the vibrating portion;
Decide core supporting part and be the fretwork setting, including a plurality of connections the chassis reaches the linking arm of deciding the core, the linking arm certainly the chassis to it is snakelike extension setting to decide the core.
4. A passive radiator as claimed in claim 2 or 3, wherein the core is arranged in the form of a hollow cylinder.
5. A passive radiator as claimed in claim 4, wherein the end of the core connected to the core support is provided with a plurality of notches extending axially of the core.
6. The passive radiator according to claim 4, wherein a face of the vibrating portion facing the stationary core is provided with an annular flange, and an end of the stationary core connected to the vibrating portion is fitted in the annular flange.
7. A passive radiator as claimed in claim 2 or 3, wherein the support further comprises a plurality of connectors connecting the top and bottom frames, the connectors being circumferentially spaced between the top and bottom frames.
8. The passive radiator of claim 7, wherein the top frame, the bottom frame, the core support, the core, and the connector are integrally formed.
9. An acoustic enclosure comprising a housing, a horn, and a passive radiator according to claims 1-8; the shell is provided with an outer convex arc-shaped mounting surface, mounting holes for mounting the passive radiator are formed in the mounting surface, and the passive radiator is in arc-shaped arrangement matched with the mounting surface in shape.
10. An acoustic enclosure according to claim 9, wherein the housing is injection moulded integrally with the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082526.5U CN205378194U (en) | 2015-12-21 | 2015-12-21 | Passive radiator and audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082526.5U CN205378194U (en) | 2015-12-21 | 2015-12-21 | Passive radiator and audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205378194U true CN205378194U (en) | 2016-07-06 |
Family
ID=56259866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521082526.5U Expired - Fee Related CN205378194U (en) | 2015-12-21 | 2015-12-21 | Passive radiator and audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205378194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632720A (en) * | 2017-03-23 | 2018-10-09 | 深圳纽斯声学系统有限公司 | A kind of single-chamber body sandwich style automobile subwoofer |
| CN110166887A (en) * | 2019-06-10 | 2019-08-23 | 国光电器股份有限公司 | Passive radiator and its manufacturing method |
-
2015
- 2015-12-21 CN CN201521082526.5U patent/CN205378194U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632720A (en) * | 2017-03-23 | 2018-10-09 | 深圳纽斯声学系统有限公司 | A kind of single-chamber body sandwich style automobile subwoofer |
| CN108632720B (en) * | 2017-03-23 | 2024-01-09 | 深圳纽斯声学系统有限公司 | Single-cavity sandwich type automobile subwoofer |
| CN110166887A (en) * | 2019-06-10 | 2019-08-23 | 国光电器股份有限公司 | Passive radiator and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |