CN214014517U - Double-sided loudspeaker - Google Patents
Double-sided loudspeaker Download PDFInfo
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- CN214014517U CN214014517U CN202120039706.4U CN202120039706U CN214014517U CN 214014517 U CN214014517 U CN 214014517U CN 202120039706 U CN202120039706 U CN 202120039706U CN 214014517 U CN214014517 U CN 214014517U
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- loudspeaker
- magnetic conductive
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Abstract
The utility model provides a double-sided loudspeaker, it contains first magnetic conduction subassembly, second magnetic conduction subassembly, first speaker and second speaker. One side surface of the second magnetic conduction component is arranged on one side surface of the first magnetic conduction component through the elastic layer body, the first loudspeaker is arranged on the other side surface of the first magnetic conduction component, and the second loudspeaker is arranged on the other side surface of the second magnetic conduction component. Therefore, the utility model discloses a two-sided speaker can have the effect of two-way sound production under the unchangeable condition of size to promote output volume and bass, and can actuate when because of first speaker and second speaker, and increase the ability of restraining the vibration and offset effort each other, produce noise and distortion in order to avoid resonating.
Description
Technical Field
The utility model relates to a two-sided speaker especially relates to a two-sided speaker that can two-wayly produce sound.
Background
A typical speaker must be mounted within the enclosure to enhance the low frequency performance.
However, when the low frequency or voltage of the speaker increases, the diaphragm swings with a large amplitude, and thus the entire speaker is likely to vibrate accordingly. Since the speaker must be installed in the cabinet, the vibration of the speaker is further transmitted to the cabinet, causing the cabinet and the speaker to resonate together, resulting in noise and distortion.
Therefore, how to invent a dual-sided speaker to achieve the effect of two-way sound production without changing the size, and achieve the purpose of increasing the output volume and bass, increasing the ability of suppressing vibration, and avoiding noise and distortion will be the active disclosure of the present invention.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, a dual-sided speaker has been developed to achieve the effect of two-way sound generation without changing the size, and achieve the purpose of increasing the output volume and bass, increasing the ability of suppressing vibration, and avoiding noise and distortion.
To achieve the above and other objects, the present invention provides a dual-sided speaker, comprising: first magnetic conduction subassembly, second magnetic conduction subassembly, first speaker and second speaker. The first loudspeaker includes a first magnetic return component, a first loudspeaker seat, a first voice coil and a first vibrating diaphragm, the first magnetic return component is positioned on the other side surface of the first magnetic conduction component, the first magnetic return component is provided with a first magnetic gap, the first loudspeaker seat is configured with the first magnetic return component, the first voice coil is movably configured in the first magnetic gap and configured with the first vibrating diaphragm, and the first vibrating diaphragm is configured with the first loudspeaker seat; the second loudspeaker is arranged on the other side surface of the second magnetic conduction assembly, the second loudspeaker comprises a second magnetic return assembly, a second loudspeaker seat, a second voice coil and a second vibrating diaphragm, the second magnetic return assembly is arranged on the other side surface of the second magnetic conduction assembly, the second magnetic return assembly is provided with a second magnetic gap, the second loudspeaker seat is configured with the second magnetic return assembly, the second voice coil is movably configured in the second magnetic gap and configured with the second vibrating diaphragm, the second vibrating diaphragm is configured with the second loudspeaker seat, and the second loudspeaker seat is combined with the first loudspeaker seat.
In the above dual-sided speaker, the first magnetic conductive assembly has a plurality of first opening portions communicating with both side surfaces, and the first magnetic gap corresponds to the first opening portion; the second magnetic conduction assembly is provided with a plurality of second hole parts communicated with the two side surfaces, the second magnetic gap corresponds to the second hole parts, and the positions of the first hole parts correspond to the positions of the second hole parts.
In the above-mentioned double-sided loudspeaker, both sides of the first magnetic conductive assembly have first gap portions respectively; the two sides of the second magnetic conduction assembly are respectively provided with a second notch part, and the position of the first notch part corresponds to the position of the second notch part.
In the above-mentioned double-sided loudspeaker, two ends of the first magnetic conducting component have the first assembling parts respectively, and each first assembling part is combined with the first loudspeaker seat; the two ends of the second magnetic conduction component are respectively provided with a second assembling part, and each second assembling part is combined with the second horn base.
In the above-mentioned dual-sided speaker, two ends of the first speaker holder are respectively provided with a first butt-joint part, and each first butt-joint part is combined with each first assembling part; the two ends of the second horn base are respectively provided with a second butt joint part, and each second butt joint part is combined with each second assembling part.
In the above-mentioned dual-sided speaker, two ends of the first speaker base have first combining portions respectively, two ends of the second speaker base have second combining portions respectively, and each of the second combining portions is correspondingly assembled with each of the first combining portions, so that the second speaker base and the first speaker base are combined with each other.
In the above-mentioned dual-sided speaker, the first magnetic return component includes a first magnetic conductive set and a first magnet set, the first magnetic conductive set is stacked on the first magnet set, the first magnet set is disposed on the other side surface of the first magnetic conductive component, the first magnetic conductive set has a first main magnetic conductive plate and two first auxiliary magnetic conductive plates, the first auxiliary magnetic conductive plates are respectively disposed on two sides of the first main magnetic conductive plate; the first magnet group is provided with a first main magnet and two first auxiliary magnets, and the first auxiliary magnets are respectively positioned on two sides of the first main magnet.
In the above dual-sided speaker, the second magnetic return component includes a second magnetic conducting set and a second magnet set, the second magnetic conducting set is stacked on the second magnet set, the second magnet set is disposed on the other side surface of the second magnetic conducting component, the second magnetic conducting set has a second main magnetic conducting plate and two second auxiliary magnetic conducting plates, the second auxiliary magnetic conducting plates are respectively disposed on two sides of the second main magnetic conducting plate; the second magnet group is provided with a second main magnet and two second auxiliary magnets, and the second auxiliary magnets are respectively positioned at two sides of the second main magnet.
In the above-mentioned dual-sided speaker, the elastic layer is an adhesive layer or a sponge layer.
Therefore, the utility model discloses a two-sided speaker can have the effect of two-way sound production under the unchangeable condition of size to promote output volume and bass, and can actuate when because of first speaker and second speaker, and increase the ability of restraining the vibration and offset effort each other, produce noise and distortion in order to avoid resonating.
Drawings
Fig. 1 is an external view of the double-sided speaker of the present invention;
fig. 2 is an exploded schematic view of the dual-sided speaker of the present invention;
fig. 3 is another exploded view of the dual-sided speaker of the present invention;
FIG. 4 is a schematic view of the cross-sectional view A-A of FIG. 1 according to the present invention;
FIG. 5A is a schematic view of a cross-sectional view B-B of FIG. 1 according to the present invention;
fig. 5B is a schematic cross-sectional view of the first magnetic return assembly, the first magnetic conductive assembly, the second magnetic conductive assembly and the second magnetic return assembly of the dual-sided speaker of the present invention;
fig. 6 is a schematic view of an operating state of the dual-sided speaker of the present invention.
[ notation ] to show
1 double-sided loudspeaker
10 first magnetic conductive component
101 first opening part
102 first notch part
103 first assembly part
20 second magnetic conduction component
201 second opening hole part
202 second notch part
203 second assembling part
30 elastic layer body
11 first loudspeaker
111 first magnetic return assembly
1111 first magnetic conduction set
11111 first leading magnetic plate
11112 first secondary magnetic conduction plate
1112 first magnet set
11121 first main magnet
11122 first secondary magnet
112 first horn base
1121 first mating part
1122 first connecting part
113 first voice coil
114 first diaphragm
115 first magnetic gap
12 second loudspeaker
121 second magnetic return component
1211 second magnetic conductive set
12111 second main magnetic plate
12112 second auxiliary magnetic conductive plate
1212 second magnet group
12121 second main magnet
12122 second secondary magnet
122 second horn base
1221 second docking portion
1222 second combination part
123 second voice coil
124 second diaphragm
125 second magnetic gap
Detailed Description
For a full understanding of the objects, features and functions of the present invention, the present invention will now be described in further detail by way of the following specific embodiments in conjunction with the accompanying drawings, wherein:
referring to fig. 1 to 6, as shown in the drawings, the present invention provides a dual-face speaker 1, which includes: a first magnetic conductive component 10, a second magnetic conductive component 20, a first loudspeaker 11 and a second loudspeaker 12.
One side surface of the second magnetic conductive component 20 is disposed on one side surface of the first magnetic conductive component 10 through an elastic layer 30, and the elastic layer 30 may be a viscose layer, a sponge layer or other layer with buffering material. Therefore, the elastic layer 30 can prevent the first magnetic conductive component 10 and the second magnetic conductive component 20 from colliding to generate resonance noise when the dual-sided speaker 1 vibrates.
The first speaker 11 is disposed on the other side surface of the first magnetic conductive assembly 10, the first speaker 11 includes a first magnetic return assembly 111, a first speaker base 112, a first voice coil 113 and a first diaphragm 114, the first magnetic return assembly 111 is disposed on the other side surface of the first magnetic conductive assembly 10, the first magnetic return assembly 111 has a first magnetic gap 115, the first speaker base 112 is disposed with the first magnetic return assembly 111, the first voice coil 113 is movably disposed in the first magnetic gap 115 and disposed with the first diaphragm 114, and the first diaphragm 114 is disposed with the first speaker base 112.
The second speaker 12 is disposed on the other side surface of the second magnetic conductive assembly 20, the second speaker 12 includes a second magnetic return assembly 121, a second speaker holder 122, a second voice coil 123 and a second diaphragm 124, the second magnetic return assembly 121 is disposed on the other side surface of the second magnetic conductive assembly 20, the second magnetic return assembly 121 has a second magnetic gap 125, the second speaker holder 122 is disposed with the second magnetic return assembly 121, the second voice coil 123 is movably disposed in the second magnetic gap 125 and disposed with the second diaphragm 124, the second diaphragm 124 is disposed with the second speaker holder 122, and the second speaker holder 122 and the first speaker holder 112 are combined with each other.
In an embodiment of the present invention, the first magnetic component 111 includes a first magnetic conducting set 1111 and a first magnet set 1112, the first magnetic conducting set 1111 is stacked on the first magnet set 1112, the first magnet set 1112 is disposed on the other side surface of the first magnetic conducting set 10, wherein the first magnetic conducting set 1111 has a first main magnetic conducting plate 11111 and two first auxiliary magnetic conducting plates 11112, the first auxiliary magnetic conducting plates 11112 are respectively disposed on two sides of the first main magnetic conducting plate 11111, the first magnet set 1112 has a first main magnet 11121 and two first auxiliary magnets 11122, and the first auxiliary magnets 11122 are respectively disposed on two sides of the first main magnet 11121.
In an embodiment of the present invention, the second magnetic component 121 includes a second magnetic conducting set 1211 and a second magnet set 1212, the second magnetic conducting set 1211 is stacked on the second magnet set 1212, the second magnet set 1212 is disposed on the other side surface of the second magnetic conducting component 20, wherein the second magnetic conducting set 1211 has a second main magnetic conducting plate 12111 and two second auxiliary magnetic conducting plates 12112, the second auxiliary magnetic conducting plates 12112 are respectively disposed on two sides of the second main magnetic conducting plate 12111, the second magnet set 1212 has a second main magnetic iron 12121 and two second auxiliary magnets 12122, and the second auxiliary magnets 12122 are respectively disposed on two sides of the second main magnetic iron 12121.
When the dual-sided speaker 1 of the present invention is used, it can be combined with a sound box (not shown), so that the first speaker 11 and the second speaker 12 are respectively disposed on the other side surface of the first magnetic conductive component 10 and the other side surface of the second magnetic conductive component 20 in a vertically symmetrical manner to form the dual-sided speaker 1, thereby allowing the first magnetic return component 111 of the first speaker 11 and the second magnetic return component 121 of the second speaker 12 to form an upper and a lower completely independent magnetic fields (as shown in fig. 4, fig. 5A and fig. 5B), so as to push the first diaphragm 114 and the second diaphragm 124 to vibrate through the first voice coil 113 and the second voice coil 123 under electromagnetic action.
The vibration modes of the first speaker 11 and the second speaker 12 during actuation are shown in fig. 6, after the first voice coil 113 and the second voice coil 123 receive an external input electronic signal, the first diaphragm 114 and the second diaphragm 124 simultaneously move outward (e.g. arrow direction of part (a) in fig. 6) and simultaneously move inward (e.g. arrow direction of part (b) in fig. 6), when the first diaphragm 114 and the second diaphragm 124 move outward, the air is pushed to vibrate to generate sound, and when the first diaphragm 114 and the second diaphragm 124 move inward, the two acting forces are mutually cancelled, so that the first speaker 11 and the second speaker 12 realize the function of damping, and the acting force generated by the actuation of the first diaphragm 114 and the second diaphragm 124 is prevented from driving the whole dual-face speaker 1 to vibrate.
Therefore, the utility model discloses a two-sided speaker 1 can be under the unchangeable circumstances of size, through the design of the two-sided vibrating diaphragm of this first vibrating diaphragm 114 and this second vibrating diaphragm 124, realizes the effect of two-way sound production, thereby promotes the output volume and the bass of this two-sided speaker 1. More importantly, the first speaker 11 and the second speaker 12 can be actuated simultaneously to counteract the acting force therebetween, and further increase the vibration suppression capability of the dual-sided speaker 1, so as to prevent the first diaphragm 114 and the second diaphragm 124 from vibrating and driving the entire dual-sided speaker 1 to generate unnecessary vibration, thereby avoiding noise and distortion due to resonance.
In an embodiment of the present invention (as shown in fig. 2 and 3), the first magnetic conductive assembly 10 has a plurality of first opening portions 101 connecting two side surfaces, and the first magnetic gap 115 corresponds to the first opening portions 101; the second magnetic conductive member 20 has a plurality of second opening portions 201 communicating with both side surfaces, the second magnetic gap 125 corresponds to the second opening portions 201, and the positions of the first opening portions 101 correspond to the positions of the second opening portions 201. Thus, the acting forces generated when the first diaphragm 114 and the second diaphragm 124 are actuated can be more comprehensively contacted and offset through the first opening portion 101 and the second opening portion 201, so as to increase the vibration suppression capability of the dual-sided speaker 1, and prevent the entire dual-sided speaker 1 from generating unnecessary vibration when the first diaphragm 114 and the second diaphragm 124 vibrate, so as to avoid noise and distortion generated by resonance.
In an embodiment of the present invention (as shown in fig. 2 and 3), the first magnetic conducting assembly 10 has first notches 102 on two sides thereof. Thus, by the cooperation of the first notch 102 or the cooperation of the first opening 101 and the first notch 102, the acting force and the airflow generated by the first diaphragm 114 during operation can be fully offset, so as to increase the vibration suppression capability of the dual-sided speaker 1, and prevent the first diaphragm 114 from vibrating and driving the entire dual-sided speaker 1 to generate unnecessary vibration, thereby avoiding noise and distortion caused by resonance.
In the embodiment of the present invention (as shown in fig. 2 and 3), the second magnetic conduction assembly 20 has second notches 202 on both sides thereof, and the first notch 102 corresponds to the second notch 202. Thus, by the cooperation of the second notch 202 or the cooperation of the second opening 201 and the second notch 202, the acting force and the airflow generated by the second diaphragm 124 during actuation can be fully offset, so as to increase the vibration suppression capability of the dual-sided speaker 1, and prevent the second diaphragm 124 from vibrating, which can drive the entire dual-sided speaker 1 to generate unnecessary vibration, thereby avoiding noise and distortion due to resonance.
In the embodiment of the present invention (as shown in fig. 2 and 3), two ends of the first magnetic conductive assembly 10 are respectively provided with a first assembling portion 103, and each first assembling portion 103 is assembled to the first speaker base 112; in addition, the two ends of the second magnetic conducting component 20 are respectively provided with a second assembling portion 203, and each second assembling portion 203 is assembled with the second speaker base 122. Thus, the first speaker base 112 of the first speaker 11 and the second speaker base 122 of the second speaker 12 can be firmly combined with the first magnetic conductive component 10 and the second magnetic conductive component 20, so as to maintain the stability of the first speaker 11 and the second speaker 12 when they move on the first magnetic conductive component 10 and the second magnetic conductive component 20. In addition, the first magnetic conducting assembly 10 and the second magnetic conducting assembly 20 can be respectively connected to the first horn base 112 and the second horn base 122 through the first assembling portions 103 and the second assembling portions 203, and can also be matched with the first magnetic return assembly 111 and the second magnetic return assembly 121 to form magnetic lines of force; since the two sides of the short axis of the first magnetic loop element 111 have been matched with the first auxiliary magnetic conductive plate 11112 and the first auxiliary magnet 11122 to form complete magnetic lines, and the two sides of the short axis of the second magnetic loop element 121 have been matched with the second auxiliary magnetic conductive plate 12112 and the second auxiliary magnet 12122 to form complete magnetic lines, no retaining wall or stop structure (as shown in fig. 5A) is required; two sides of the long axis of the first magnetic conductive assembly 10 form upward retaining wall structures through the first assembling portions 103, and two sides of the long axis of the second magnetic conductive assembly 20 form downward retaining wall structures through the second assembling portions 203, so as to correspond to the first main magnetic plate 11111 and the first main magnet 11121 of the first magnetic return assembly 111 disposed above and the second main magnet 12111 and the second main magnet 12121 of the second magnetic return assembly 121 disposed below, respectively, so that the first assembling portions 103, the first main magnetic plate 11111 and the first main magnet 11121 form a complete magnetic field above the first magnetic conductive assembly 10, and the second assembling portions 203, the second main magnetic plate 12111 and the second main magnet 12121 form a complete magnetic field below the second magnetic conductive assembly 20, thereby forming two completely independent magnetic fields, i.e., an upper magnetic field and a lower magnetic field, between the first magnetic return assembly 111 of the first speaker 11 and the second magnetic return assembly 121 of the second speaker 12 (as shown in fig. 5B) ).
In an embodiment of the present invention (as shown in fig. 2 and fig. 3), the two ends of the first horn base 112 respectively have the first butt-joint portion 1121, the two ends of the second horn base 122 respectively have the second butt-joint portion 1221, each of the first butt-joint portions 1121 is combined with each of the first butt-joint portions 103, each of the second butt-joint portions 1221 is combined with each of the second butt-joint portions 203, each of the first butt-joint portions 103 and the first butt-joint portion 1121 of the first horn base 112 can be a concave-convex structure, a buckle structure, and an engagement structure that are butted with each other, and each of the second butt-joint portions 203 and the second butt-joint portion 1221 of the second horn base 122 can be a concave-convex structure, a buckle structure, and an engagement structure that are butted with each other. Thus, the first speaker base 112 of the first speaker 11 can be firmly combined with the first magnetic conductive element 10, and the second speaker base 122 of the second speaker 12 can be firmly combined with the second magnetic conductive element 20, so as to maintain the stability of the first speaker 11 and the second speaker 12 when they move on the first magnetic conductive element 10 and the second magnetic conductive element 20.
In an embodiment of the present invention (as shown in fig. 2 and 3), the two ends of the first speaker seat 112 have a first combining portion 1122, the two ends of the second speaker seat 122 have a second combining portion 1222, each of the second combining portions 1222 corresponds to each of the first combining portions 1122 for assembling, and each of the second combining portions 1222 and each of the first combining portions 1122 can be a concave-convex structure, a snap structure, or an embedding structure that are butted to each other, so that the second speaker seat 122 and the first speaker seat 112 are firmly combined with each other to maintain the stability of the first speaker 11 and the second speaker 12 when they are operated on both sides of the first magnetic conductive component 10 and the second magnetic conductive component 20.
The present invention has been disclosed in terms of preferred embodiments, but those skilled in the art will recognize that such embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of the invention. It should be noted that all changes and substitutions equivalent to the embodiments are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.
Claims (9)
1. A dual-sided loudspeaker, comprising:
a first magnetic conductive component;
the surface of one side of the second magnetic conduction component is arranged on the surface of one side of the first magnetic conduction component through an elastic layer body;
the first loudspeaker is arranged on the other side surface of the first magnetic conduction assembly, the first loudspeaker comprises a first magnetic return assembly, a first loudspeaker seat, a first voice coil and a first vibrating diaphragm, the first magnetic return assembly is positioned on the other side surface of the first magnetic conduction assembly, the first magnetic return assembly is provided with a first magnetic gap, the first loudspeaker seat is configured with the first magnetic return assembly, the first voice coil is movably configured in the first magnetic gap and configured with the first vibrating diaphragm, and the first vibrating diaphragm is configured with the first loudspeaker seat; and
the second loudspeaker, it locates the other side surface of the second magnetic conduction assembly, the second loudspeaker includes the second magnetic return assembly, the second loudspeaker seat, the second voice coil loudspeaker voice coil and second vibrating diaphragm, the second magnetic return assembly locates at the other side surface of the second magnetic conduction assembly, the second magnetic return assembly has the second magnetic gap, the second loudspeaker seat and the second magnetic return assembly dispose, the second voice coil loudspeaker voice coil activity dispose in the second magnetic gap and dispose with the second vibrating diaphragm, the second vibrating diaphragm disposes with the second loudspeaker seat, the second loudspeaker seat makes up with the first loudspeaker seat each other.
2. The dual sided speaker of claim 1, wherein the first magnetically permeable member has a plurality of first opening portions communicating with both side surfaces, the first magnetic gap corresponding to the first opening portions; the second magnetic conduction assembly is provided with a plurality of second hole parts communicated with the two side surfaces, the second magnetic gap corresponds to the second hole parts, and the positions of the first hole parts correspond to the positions of the second hole parts.
3. The dual-sided speaker of claim 1, wherein the first magnetic conductive member has first notches at both sides thereof; the two sides of the second magnetic conduction assembly are respectively provided with a second notch part, and the position of the first notch part corresponds to the position of the second notch part.
4. The dual-sided speaker of claim 1, wherein the first magnetic conductive component has first assembling portions at two ends thereof, and each of the first assembling portions is assembled with the first speaker holder; the two ends of the second magnetic conduction component are respectively provided with a second assembling part, and each second assembling part is combined with the second horn base.
5. The dual-sided speaker of claim 4, wherein the first horn base has first butt portions at both ends thereof, and each of the first butt portions is combined with each of the first assembling portions; the two ends of the second horn base are respectively provided with a second butt joint part, and each second butt joint part is combined with each second assembling part.
6. The dual-sided speaker as claimed in claim 1, wherein the first speaker base has first coupling portions at two ends thereof, the second speaker base has second coupling portions at two ends thereof, and each of the second coupling portions is correspondingly coupled to each of the first coupling portions, such that the second speaker base and the first speaker base are coupled to each other.
7. The dual-sided speaker of claim 1, wherein the first magnetic return element includes a first magnetic conductive set and a first magnet set, the first magnetic conductive set is stacked on the first magnet set, the first magnet set is disposed on the other side surface of the first magnetic conductive set, the first magnetic conductive set has a first main magnetic conductive plate and two first auxiliary magnetic conductive plates, the first auxiliary magnetic conductive plates are respectively disposed on two sides of the first main magnetic conductive plate; the first magnet group is provided with a first main magnet and two first auxiliary magnets, and the first auxiliary magnets are respectively positioned on two sides of the first main magnet.
8. The dual-sided speaker of claim 1, wherein the second magnetic return element includes a second magnetic conductive set and a second magnet set, the second magnetic conductive set is stacked on the second magnet set, the second magnet set is disposed on the other side surface of the second magnetic conductive set, the second magnetic conductive set has a second main magnetic conductive plate and two second auxiliary magnetic conductive plates, the second auxiliary magnetic conductive plates are respectively disposed on two sides of the second main magnetic conductive plate; the second magnet group is provided with a second main magnet and two second auxiliary magnets, and the second auxiliary magnets are respectively positioned at two sides of the second main magnet.
9. The dual sided speaker of claim 1, wherein the elastic layer is a viscose layer or a sponge layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120039706.4U CN214014517U (en) | 2021-01-07 | 2021-01-07 | Double-sided loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120039706.4U CN214014517U (en) | 2021-01-07 | 2021-01-07 | Double-sided loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214014517U true CN214014517U (en) | 2021-08-20 |
Family
ID=77295035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120039706.4U Active CN214014517U (en) | 2021-01-07 | 2021-01-07 | Double-sided loudspeaker |
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| CN (1) | CN214014517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220322013A1 (en) * | 2021-03-30 | 2022-10-06 | Fortune Grand Technology Inc. | Double-sided vibrating speaker |
| US20230421961A1 (en) * | 2022-06-22 | 2023-12-28 | Hewlett-Packard Development Company, Lp. | Speaker devices with dual-transducers |
-
2021
- 2021-01-07 CN CN202120039706.4U patent/CN214014517U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220322013A1 (en) * | 2021-03-30 | 2022-10-06 | Fortune Grand Technology Inc. | Double-sided vibrating speaker |
| US11832075B2 (en) * | 2021-03-30 | 2023-11-28 | Fortune Grand Technology Inc. | Double-sided vibrating speaker |
| US20230421961A1 (en) * | 2022-06-22 | 2023-12-28 | Hewlett-Packard Development Company, Lp. | Speaker devices with dual-transducers |
| US11968512B2 (en) * | 2022-06-22 | 2024-04-23 | Hewlett-Packard Development Company, L.P. | Speaker devices with dual-transducers |
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