TW202228444A - Double-sided loudspeaker capable of increasing the damping force to offset the interaction between two loudspeakers so as to avoid the noise and distortion caused by resonance - Google Patents

Abstract

A double-sided loudspeaker comprises a magnetic conducting element, a first loudspeaker and a second loudspeaker. The first loudspeaker is arranged on one surface of the magnetic conducting element, and the second loudspeaker is arranged on the other surface of the magnetic conducting element. In this way, the double-sided loudspeaker of the present invention can be provided with the effect of two-way sound generation under the situation of not changing the size, so as to improve the output volume and bass. Furthermore, because the first loudspeaker and the second loudspeaker are operated at the same time, the damping force can be increased to offset the interaction between the first and second loudspeakers, so as to avoid the noise and distortion caused by resonance.

Description

double-sided speakers

The present invention provides a double-sided loudspeaker, especially a double-sided loudspeaker capable of producing sound in two directions.

Generally speaking, the speakers must be installed in the speaker box to improve the low frequency performance.

However, when the low frequency or voltage of the loudspeaker increases, the diaphragm will oscillate with a larger amplitude, so it is easy to cause the entire loudspeaker to vibrate. Since the speaker must be installed in the sound box, the vibration of the speaker will be further transmitted to the sound box, causing the sound box and the speaker to resonate together, resulting in noise and distortion.

Therefore, how to invent a double-sided loudspeaker, in order to achieve the effect of two-way sound output without changing the size, and to achieve the purpose of increasing the output volume and bass, increasing the vibration suppression force, and avoiding noise and distortion, will be the present invention. What you want to actively expose.

In view of the shortcomings of the above-mentioned conventional technology, the present inventor feels that it has not been perfected, and has devoted his mind to research and overcome it, and then develops a double-sided speaker, in order to achieve a two-way sound with the same size. effect, and achieve the purpose of improving the output volume and bass, increasing the shock resistance and avoiding noise and distortion.

In order to achieve the above object and other objects, the present invention provides a double-sided speaker, which includes: a magnetic conductive element, a first speaker and a second speaker. The first speaker is disposed on a surface of the magnetic conducting element. The first speaker includes a first magnetic return component, a first speaker base, a first voice coil and a first diaphragm. The first magnetic return component Located on a surface of the magnetic conductive element, the first magnetic return component has a first magnetic gap, the first speaker base is arranged with the first magnetic return component, the first voice coil is movably arranged in the first magnetic gap and is arranged with the first diaphragm, the first diaphragm is arranged with the first speaker base; the second speaker is arranged on the other surface of the magnetic conducting element, and the second speaker includes a second magnetic return component, a first Two horn bases, a second voice coil and a second diaphragm, the second magnetic return element is located on the other surface of the magnetic conducting element, the second magnetic return element has a second magnetic gap, the second horn base is arranged with the second magnetic return element, the second voice coil is movably arranged in the second magnetic gap and is arranged with the second diaphragm, the second diaphragm is arranged with the second horn seat, the second horn seat and The first horn sockets are combined with each other.

In the above-mentioned double-sided loudspeaker, the magnetic conductive element has a plurality of openings connecting two surfaces, and the first magnetic gap and the second magnetic gap correspond to the openings.

In the above-mentioned double-sided speaker, two sides of the magnetic conductive element are respectively provided with a notch.

In the above-mentioned double-sided loudspeaker, both ends of the magnetic conductive element respectively have a first assembly portion and a second assembly portion, each of the first assembly portion is assembled with the first speaker base, and each of the second assembly The connecting portion is combined with the second speaker base.

In the above-mentioned double-sided loudspeaker, two ends of the first horn seat respectively have a first abutting portion, two ends of the second horn seat respectively have a second abutting portion, each of the first abutting portions and each of the first The assembly parts are assembled, and each of the second butt joints is assembled with each of the second assembly parts.

In the above-mentioned double-sided loudspeaker, two ends of the first speaker base respectively have a first joint portion, both ends of the second speaker base respectively have a second joint portion, and each of the second joint portions is connected to each of the first joint portions. The joint parts are correspondingly assembled, so that the second horn seat and the first horn seat are combined with each other.

In the above-mentioned double-sided speaker, the first magnetic return component includes a first magnetic conduction group and a first magnet group, the first magnetic conduction group is stacked on the first magnet group, and the first magnet group is arranged on the first magnetic conduction group. a surface of the magnetic element, the first magnetic conductive group has a first main magnetic plate and two first auxiliary magnetic conductive plates, the first auxiliary magnetic conductive plates are respectively located on both sides of the first main magnetic plate; the first magnetic conductive plate A magnet group has a first main magnet and two first sub-magnets, and the first sub-magnets are located on two sides of the first main magnet respectively.

In the above-mentioned double-sided speaker, the second magnetic return component includes a second magnetic conductive group and a second magnet group, the second magnetic conductive group is stacked on the second magnet group, and the second magnet group is arranged on the conductive On the other surface of the magnetic element, the second magnetic conductive group has a second main magnetic plate and two second auxiliary magnetic conductive plates, and the second auxiliary magnetic conductive plates are respectively located on both sides of the second main magnetic plate; the The second magnet group has a second main magnet and two second sub-magnets, and the second sub-magnets are located on two sides of the second main magnet respectively.

In this way, the double-sided speaker of the present invention can have the effect of two-way sound output under the condition of the same size, so as to improve the output volume and bass, and the first speaker and the second speaker can act simultaneously to increase the damping force and increase the vibration resistance. Counteract each other's forces to avoid resonance and distortion.

In order to fully understand the purpose, features and effects of the present invention, hereby, the present invention is described in detail by the following specific embodiments and in conjunction with the accompanying drawings, and the description is as follows:

Please refer to FIGS. 1 to 6 . As shown in the figures, the present invention provides a double-sided speaker 1 , which includes a magnetic conductive element 10 , a first speaker 11 and a second speaker 12 .

The first speaker 11 is disposed on a surface of the magnetic conductive element 10 . The first speaker 11 includes a first magnetic return element 111 , a first speaker base 112 , a first voice coil 113 and a first diaphragm 114 , the first magnetic return element 111 is located on a surface of the magnetic conductive element 10 , the first magnetic return element 111 has a first magnetic gap 115 , the first speaker base 112 is arranged with the first magnetic return element 111 , the The first voice coil 113 is movably arranged in the first magnetic gap 115 and is arranged with the first diaphragm 114 , and the first diaphragm 114 is arranged with the first speaker base 112 .

The second speaker 12 is disposed on the other surface of the magnetic conductive element 10 , and the second speaker 12 includes a second magnetic return element 121 , a second speaker base 122 , a second voice coil 123 and a second diaphragm 124, the second magnetic return element 121 is located on the other surface of the magnetic conductive element 10, the second magnetic return element 121 has a second magnetic gap 125, the second horn base 122 is arranged with the second magnetic return element 121 , the second voice coil 123 is movably arranged in the second magnetic gap 125 and is arranged with the second diaphragm 124 , the second diaphragm 124 is arranged with the second horn seat 122 , and the second horn seat 122 is arranged with the first A horn seat 112 is combined with each other.

In one embodiment of the present invention, the first magnetic return element 111 includes a first magnetic permeable group 1111 and a first magnet group 1112, the first magnetic permeable group 1111 is stacked on the first magnet group 1112, and the first A magnet group 1112 is disposed on a surface of the magnetic conductive element 10 , wherein the first magnetic conductive group 1111 has a first main magnetic conductive plate 11111 and two first secondary magnetic conductive plates 11112 , and the first secondary magnetic conductive plates 11112 Located on both sides of the first main magnet plate 11111 respectively, the first magnet group 1112 has a first main magnet 11121 and two first sub-magnets 11122, the first sub-magnets 11122 are respectively located between the first main magnet 11121 sides.

In an embodiment of the present invention, the second magnetic return element 121 includes a second magnetic permeable group 1211 and a second magnet group 1212, the second magnetic permeable group 1211 is stacked on the second magnet group 1212, the first Two magnet sets 1212 are disposed on the other surface of the magnetic conductive element 10 , wherein the second magnetic conductive set 1211 has a second main magnetic conductive plate 12111 and two second secondary magnetic conductive plates 12112 , the second secondary magnetic conductive plates 12112 are respectively located on both sides of the second main magnet plate 12111, the second magnet group 1212 has a second main magnet 12121 and two second sub-magnets 12122, the second sub-magnets 12122 are respectively located on the second main magnet 12121 on both sides.

When the double-sided loudspeaker 1 of the present invention is used, it can be combined with a sound box (not shown in the figure), so that the first loudspeaker 11 and the second loudspeaker 12 are arranged on both sides of the magnetic conducting element 10 in an up-down symmetrical manner. By sharing the magnetic conductive element 10, the first magnetic return element 111 of the first speaker 11 and the second magnetic return element 121 of the second speaker 12 can form two completely independent magnetic fields up and down (as shown in FIG. 4, 5A and 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 through electromagnetic action.

The vibration mode of the first speaker 11 and the second speaker 12 is shown in FIG. 6 . After the first voice coil 113 and the second voice coil 123 receive an externally input electronic signal, the first voice coil 113 and the second voice coil 123 will vibrate the first The diaphragm 114 and the second diaphragm 124 act simultaneously outward (in the direction of the arrow in part (a) in FIG. 6 ) and inward (in the direction of the arrow in part (b) in FIG. 6 ), when the first diaphragm When both the 114 and the second diaphragm 124 act outward, the air vibrates to make a sound, and when the first diaphragm 114 and the second diaphragm 124 act inward, the two forces will offset each other , so that the first speaker 11 and the second speaker 12 can realize the function of shock absorption, so as to avoid the force generated by the action of the first diaphragm 114 and the second diaphragm 124 from driving the entire double-sided speaker 1 to vibrate.

In this way, the double-sided speaker 1 of the present invention can achieve the effect of two-way sound through the design of the double-sided diaphragms of the first diaphragm 114 and the second diaphragm 124 under the condition that the size remains unchanged, thereby improving the The output volume and bass of the double-sided speaker 1. More importantly, since the first speaker 11 and the second speaker 12 act simultaneously, the force between each other can be offset, and the vibration-damping force of the double-sided speaker 1 can be further increased to prevent the first diaphragm When 114 and the second diaphragm 124 vibrate, they will drive the entire double-sided speaker 1 to generate unnecessary vibration, so as to avoid noise and distortion caused by resonance.

In an embodiment of the present invention (as shown in FIG. 2 and FIG. 3 ), the magnetic conductive element 10 has a plurality of openings 101 connecting two surfaces, and the first magnetic gap 115 and the second magnetic gap 125 correspond to each other. Equal opening portion 101 . In this way, the force generated when the first diaphragm 114 and the second diaphragm 124 are actuated through the openings 101 can be more fully contacted and offset, thereby increasing the stability of the double-sided speaker 1 The vibration force prevents the first diaphragm 114 and the second diaphragm 124 from vibrating, which will drive the entire double-sided speaker 1 to generate unnecessary vibration, so as to avoid noise and distortion caused by resonance.

In an embodiment of the present invention (as shown in FIG. 2 and FIG. 3 ), two sides of the magnetic conductive element 10 respectively have a notch 102 . In this way, the force and airflow generated when the first diaphragm 114 and the second diaphragm 124 are actuated can be achieved by the cooperation of the notches 102 or the cooperation of the openings 101 and the notches 102 It can be fully offset to increase the shock-reducing force of the double-sided speaker 1 and prevent the first diaphragm 114 and the second diaphragm 124 from vibrating, which will drive the entire double-sided speaker 1 to generate unnecessary vibration to avoid resonance. produces noise and distortion.

In an embodiment of the present invention (as shown in FIG. 2 and FIG. 3 ), both ends of the magnetically conductive element 10 respectively have a first assembly portion 103 and a second assembly portion 104 . The connecting portion 103 is assembled with the first horn seat 112 , and each of the second connecting portions 104 is assembled with the second horn seat 122 . In this way, 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 magnetic conductive element 10 to maintain the first speaker 11 and the second speaker 12 at the same The stability of the magnetic conductive element 10 when actuated on both sides. In addition, the magnetic conductive element 10 is not only connected to the first horn seat 112 and the second horn seat 122 by the first assembling parts 103 and the second assembling parts 104 , but also can cooperate with the first horn seat 112 and the second horn seat 122 . A magnetic return element 111 and the second magnetic return element 121 form magnetic lines of force; since both sides of the short axis of the first magnetic return element 111 have been matched with the first secondary magnetic conducting plates 11112 and the first secondary magnets 11122 Complete magnetic lines of force, and the two sides of the short axis of the second magnetic return element 121 have been matched with the second secondary magnetic conductive plates 12112 and the second secondary magnets 12122 to form complete magnetic lines of force, so no blocking wall or blocking structure is required. (As shown in FIG. 5A ); and the two sides of the long axis of the magnetic conductive element 10 are respectively formed by the first assembly portion 103 and the second assembly portion 104 to form upward and downward retaining walls The structure corresponds to the first main magnet plate 11111 and the first main magnet 11121 of the first magnetic return element 111 disposed above, and the second main magnet plate 12111 and the second magnetic return element 121 of the second magnetic return element 121 disposed below, respectively. The second main magnet 12121 enables each of the first assembly portion 103, the first main magnetic plate 11111 and the first main magnet 11121 to form a complete magnetic field above the magnetic conductive element 10, and each second group The connecting portion 104 , the second main magnetic plate 12111 and the second main magnet 12121 form a complete magnetic field below the magnetic conductive element 10 , thereby allowing the first magnetic return element 111 of the first speaker 11 to interact with the The second magnetic return element 121 of the second speaker 12 forms two completely independent magnetic fields up and down (as shown in FIG. 5B ).

In an embodiment of the present invention (as shown in FIG. 2 and FIG. 3 ), both ends of the first horn seat 112 respectively have a first butt joint 1121 , and both ends of the second horn seat 122 respectively have a first abutting portion 1121 . Two docking portions 1221, each of the first docking portions 1121 is combined with each of the first assembling portions 103, each of the second docking portions 1221 is combined with each of the second assembling portions 104, and each of the first assembling portions 103 The first abutting portion 1121 of the first horn seat 112 can be a concave-convex structure, a snap-fit structure, and an inlaid structure that are butted to each other. It can be a concave-convex structure, a buckle structure, and an embedded structure that are butted against each other. In this way, 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 magnetic conductive element 10 to maintain the first speaker 11 and the second speaker 12 at the same The stability of the magnetic conductive element 10 when actuated on both sides.

In an embodiment of the present invention (as shown in FIG. 2 and FIG. 3 ), both ends of the first horn seat 112 respectively have a first joint portion 1122 , and both ends of the second horn seat 122 respectively have a second connecting portion 1122 . The joint parts 1222, each of the second joint parts 1222 is correspondingly assembled with each of the first joint parts 1122, and each of the second joint parts 1222 and each of the first joint parts 1122 can be a concave-convex structure or a buckle structure that is butted to each other. , the embedded structure, so that the second speaker base 122 and the first speaker base 112 are stably combined with each other, so as to maintain the stability of the first speaker 11 and the second speaker 12 when they act on both sides of the magnetic conductive element 10 sex.

The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the embodiments are only used to describe the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be considered to be included within the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

1: Double-sided speakers 10: Magnetic components 101: Opening part 102: Notch part 103: The first set of connections 104: The second set of connections 11: The first speaker 111: The first magnetic return assembly 1111: The first magnetic permeability group 11111: The first main magnet plate 11112: The first magnetic conductive plate 1112: The first magnet group 11121: The first main magnet 11122: The first pair of magnets 112: The first speaker seat 1121: The first docking part 1122: The first joint 113: First voice coil 114: The first diaphragm 115: The first magnetic gap 12: Second speaker 121: The second magnetic return assembly 1211: The second magnetic permeability group 12111: Second main magnet plate 12112: The second magnetic conductive plate 1212: Second magnet group 12121: Second main magnet 12122: The second pair of magnets 122: The second speaker seat 1221: Second docking part 1222: The second joint 123: Second voice coil 124: The second diaphragm 125: The second magnetic gap

[FIG. 1] is a schematic view of the appearance of the double-sided speaker of the present invention. [FIG. 2] is a schematic diagram of an exploded state of the double-sided speaker of the present invention. [FIG. 3] is another exploded schematic view of the double-sided speaker of the present invention. [FIG. 4] It is a schematic diagram of the cross-sectional state of A-A of FIG. 1 of the present invention. [FIG. 5A] It is a schematic diagram of the cross-sectional state of B-B of FIG. 1 of the present invention. 5B is a schematic cross-sectional view of the first magnetic return element, the magnetic conductive element and the second magnetic return element of the double-sided speaker of the present invention. [FIG. 6] is a schematic diagram of the actuation state of the double-sided speaker of the present invention.

1: Double-sided speakers

10: Magnetic components

101: Opening part

102: Notch part

103: The first set of connections

104: The second set of connections

11: The first speaker

111: The first magnetic return assembly

112: The first speaker seat

1122: The first joint

114: The first diaphragm

12: Second speaker

121: The second magnetic return assembly

1212: Second magnet group

12121: Second main magnet

12122: The second pair of magnets

122: The second speaker seat

1221: Second docking part

1222: The second joint

123: Second voice coil

125: The second magnetic gap

Claims (8)

A double-sided speaker comprising: a magnetic conductive element; A first loudspeaker is disposed on a surface of the magnetic conducting element, the first loudspeaker includes a first magnetic return element, a first speaker base, a first voice coil and a first diaphragm, the first magnetic The return component is located on a surface of the magnetic conductive element, the first magnetic return component has a first magnetic gap, the first speaker base is arranged with the first magnetic return component, and the first voice coil is movably arranged on the first magnetic return component a gap and is arranged with the first diaphragm, the first diaphragm is arranged with the first horn seat; and A second loudspeaker is disposed on the other surface of the magnetic conducting element. The second loudspeaker includes a second magnetic return element, a second speaker base, a second voice coil and a second diaphragm, the second The magnetic return component is located on the other surface of the magnetic conductive element, the second magnetic return component has a second magnetic gap, the second speaker base is arranged with the second magnetic return component, and the second voice coil is movably arranged on the first magnetic return component. Two magnetic gaps are arranged with the second diaphragm, the second diaphragm is arranged with the second horn seat, and the second horn seat and the first horn seat are combined with each other. The double-sided loudspeaker as claimed in claim 1, wherein the magnetic conductive element has a plurality of openings connecting two surfaces, and the first magnetic gap and the second magnetic gap correspond to the openings. The double-sided speaker as claimed in claim 1, wherein two sides of the magnetic conductive element are respectively provided with a notch. The double-sided speaker according to claim 1, wherein two ends of the magnetic conductive element respectively have a first assembly portion and a second assembly portion, and each of the first assembly portions is assembled with the first speaker base, Each of the second assembly parts is assembled with the second speaker base. The double-sided loudspeaker as claimed in claim 4, wherein two ends of the first speaker base respectively have a first abutting portion, two ends of the second speaker base respectively have a second abutting portion, and each of the first abutting portions Combined with each of the first assembling parts, each of the second connecting parts is combined with each of the second assembling parts. The double-sided speaker according to claim 1, wherein two ends of the first speaker base respectively have a first joint part, both ends of the second speaker base respectively have a second joint part, and each of the second joint parts Correspondingly assembled with each of the first joint parts, so that the second horn seat and the first horn seat are combined with each other. The double-sided speaker as claimed in claim 1, wherein the first magnetic return element comprises a first magnetic permeable group and a first magnet group, the first magnetic permeable group is stacked on the first magnet group, and the first magnet Set on a surface of the magnetic conductive element, the first magnetic conductive group has a first main magnetic plate and two first auxiliary magnetic conductive plates, and the first auxiliary magnetic conductive plates are respectively located between the first main magnetic plates two sides; the first magnet group has a first main magnet and two first sub-magnets, and the first sub-magnets are located on two sides of the first main magnet respectively. The double-sided speaker as claimed in claim 1, wherein the second magnetic return element comprises a second magnetic permeable group and a second magnet group, the second magnetic permeable group is stacked on the second magnet group, and the second magnet Set on the other surface of the magnetic conductive element, the second magnetic conductive group has a second main magnetic plate and two second secondary magnetic conductive plates, and the second secondary magnetic conductive plates are respectively located on the second main magnetic plate The second magnet group has a second main magnet and two second sub-magnets, and the second sub-magnets are respectively located on both sides of the second main magnet.

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