TWI741928B - Double-sided speaker - Google Patents

Abstract

A double-sided speaker includes a magnetic element, a first speaker and a second speaker. The first speaker is arranged on one surface of the magnetic conductive element, and the second speaker is arranged on the other surface of the magnetic conductive element. As a result, the double-sided speaker of the present invention can have the effect of two-way sound generation under the condition of the same size, so as to increase the output volume and bass, and the first speaker and the second speaker can act simultaneously to increase the damping power and Offset the forces between each other to avoid noise and distortion caused by resonance.

Description

Double-sided speaker

The present invention provides a double-sided speaker, especially a double-sided speaker capable of bidirectional sound.

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

However, when the low frequency or voltage of the loudspeaker increases, the diaphragm will swing with a larger amplitude, which easily causes the whole loudspeaker to vibrate. Since the speaker must be installed in the speaker, the vibration of the speaker will be further transmitted to the speaker, causing the speaker and the speaker to resonate together, resulting in noise and distortion.

Therefore, how to invent a double-sided speaker to achieve the effect of two-way sound generation without changing the size, and to achieve the purpose of increasing output volume and bass, increasing damping power, and avoiding noise and distortion, will be the present invention Actively expose what you want.

In view of the shortcomings of the above-mentioned conventional technology, the inventor felt that it was not perfect, so he exhausted his mind to study and overcome it, and then developed a double-sided speaker that can achieve two-way sound without changing the size. Effect, and achieve the purpose of increasing the output volume and bass, increasing the damping power and avoiding noise and distortion.

To achieve the above and other objectives, the present invention provides a double-sided speaker, which includes: a magnetic element, a first speaker, and a second speaker. The first loudspeaker is arranged on a surface of the magnetic conductive element, and the first loudspeaker includes a first magnetic return component, a first speaker base, and a first A voice coil and a first diaphragm, the first magnetic 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 and the first magnetic return component Configuration, the first voice coil is movably disposed in the first magnetic gap and disposed with the first diaphragm, the first diaphragm is disposed with the first speaker base; the second speaker is disposed on the other of the magnetic conductive element Surface, the second speaker includes a second magnetic loop component, a second speaker base, a second voice coil and a second diaphragm, the second magnetic loop component is located on the other surface of the magnetic element, the first The two magnetic loop components have a second magnetic gap, the second speaker base is configured with the second magnetic loop component, the second voice coil is movably configured in the second magnetic gap and is configured with the second diaphragm, the second The diaphragm is configured with the second horn base, and the second horn base and the first horn base are combined with each other.

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

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

In the above-mentioned double-sided loudspeaker, both ends of the first horn base are respectively provided with a first docking portion, both ends of the second speaker base are respectively provided with a second docking portion, and each of the first docking portions is connected to each of the first docking portions. The assembling parts are combined, and each of the second mating parts is combined with each of the second assembling parts.

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

In the above-mentioned double-sided speaker, the first magnetic return assembly includes a first magnetic permeable group and a first magnet group, the first magnetic permeable group is laminated on the first magnet group, and the first magnet group is arranged on the conductive On one 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; A magnet group has a first main magnet and two first auxiliary magnets, and the first auxiliary magnets are respectively located on both sides of the first main magnet.

In the above-mentioned double-sided speaker, the second magnetic loop assembly includes a second magnetic permeable group and a second magnet group, the second magnetic permeable group is laminated 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 permeable group has a second main magnetic plate and two second secondary magnetic permeable plates, the second secondary magnetic permeable 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 auxiliary magnets, and the second auxiliary magnets are respectively located on both sides of the second main magnet.

As a result, the double-sided speaker of the present invention can have the effect of two-way sound generation under the condition of the same size, so as to increase the output volume and bass, and the first speaker and the second speaker can act simultaneously to increase the damping power and Offset the forces between each other to avoid noise and distortion caused by resonance.

1: Double-sided speaker

10: Magnetic element

101: Hole

102: Notch

103: The first group of joints

104: The second group of joints

11: The first speaker

111: The first magnetic return assembly

1111: The first magnetic permeable group

11111: The first main magnetic plate

11112: The first pair of magnetic conductive plates

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: first diaphragm

115: first magnetic gap

12: second speaker

121: The second magnetic return assembly

1211: The second magnetic permeable group

12111: The second main magnetic plate

12112: The second magnetic permeable plate

1212: The second magnet group

12121: second main magnet

12122: second magnet

122: second speaker seat

1221: The second docking part

1222: second joint

123: second voice coil

124: second diaphragm

125: second magnetic gap

[Figure 1] is a schematic diagram 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.

[Figure 3] is another exploded schematic diagram of the double-sided speaker of the present invention.

[Figure 4] is a schematic view of the state of the A-A section of Figure 1 of the present invention.

[Fig. 5A] is a schematic view of the state of the B-B section of Fig. 1 of the present invention.

[Figure 5B] is a schematic cross-sectional view of the first magnetic return component, the magnetic conductive element and the second magnetic return component of the double-sided speaker of the present invention.

[Figure 6] is a schematic diagram of the actuation state of the double-sided speaker of the present invention.

In order to fully understand the purpose, features and effects of the present invention, the following specific embodiments are used in conjunction with the accompanying drawings to give a detailed description of the present invention. The description is as follows: please refer to Figures 1 to 6, as As shown in the figure, the present invention provides a double-sided speaker 1, which includes: a magnetically 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 component 111, a first speaker base 112, a first voice coil 113, and a first diaphragm 114 , The first magnetic return component 111 is located on a surface of the magnetic conductive element 10, the first magnetic return component 111 has a first magnetic gap 115, the first speaker base 112 is configured with the first magnetic return component 111, the The first voice coil 113 is movably arranged in the first magnetic gap 115 and 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. The second speaker 12 includes a second magnetic return component 121, a second speaker base 122, a second voice coil 123, and a second diaphragm 124. The second magnetic return component 121 is located on the other surface of the magnetic conductive element 10, the second magnetic return component 121 has a second magnetic gap 125, and the second speaker base 122 is configured with the second magnetic return component 121 , The second voice coil 123 is movably arranged in the second magnetic gap 125 and arranged with the second diaphragm 124, the second diaphragm 124 is arranged with the second horn base 122, and the second horn base 122 is arranged with the second diaphragm 124. A speaker base 112 is combined with each other.

In an embodiment of the present invention, the first magnetic loop assembly 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 A magnet group 1112 is arranged on a surface of the magnetically permeable element 10, wherein the first magnetic permeable group 1111 has a first main magnetic plate 11111 and two first auxiliary magnetic plates 11112, the first auxiliary magnetic plates 11112 Are located in On both sides of the first main magnetic plate 11111, the first magnet group 1112 has a first main magnet 11121 and two first auxiliary magnets 11122, and the first auxiliary magnets 11122 are respectively located on both sides of the first main magnet 11121 .

In an embodiment of the present invention, the second magnetic loop assembly 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, and the Two magnet groups 1212 are arranged on the other surface of the magnetically permeable element 10, wherein the second magnetic permeable group 1211 has a second main magnetic plate 12111 and two second secondary magnetic plates 12112, the second secondary magnetic plates 12112 are respectively located on both sides of the second main magnetic plate 12111. The second magnet group 1212 has a second main magnet 12121 and two second auxiliary magnets 12122. The second auxiliary magnets 12122 are respectively located on the second main magnet 12121 On both sides.

When the double-sided speaker 1 of the present invention is used, it can be combined with a speaker box (not shown), so that the first speaker 11 and the second speaker 12 are arranged on both sides of the magnetic element 10 in a symmetrical manner. By sharing the magnetic conductive element 10, the first magnetic return component 111 of the first speaker 11 and the second magnetic return component 121 of the second speaker 12 can form two completely independent magnetic fields (as shown in FIG. 4, 5A and 5B), so as to drive 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 when actuated is shown in FIG. The diaphragm 114 and the second diaphragm 124 simultaneously act outward (in the direction of the arrow in part (a) of Fig. 6) and inward simultaneously (in the direction of the arrow in part (b) of Fig. 6), when the first diaphragm When both the 114 and the second diaphragm 124 act outward, they push the air to vibrate and produce sound. 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 achieve shock absorption The function prevents 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 by using the double-sided diaphragm design of the first diaphragm 114 and the second diaphragm 124 without changing the size, thereby improving the The output volume and bass of the double-sided speaker 1. More importantly, the simultaneous actuation of the first speaker 11 and the second speaker 12 can offset the mutual force, and further increase the damping force of the double-sided speaker 1 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 vibrations to avoid noise and distortion caused by resonance.

In an embodiment of the present invention (as shown in FIGS. 2 and 3), the magnetic conductive element 10 has a plurality of openings 101 connecting two surfaces, and the first magnetic gap 115 corresponds to the second magnetic gap 125 Wait for the opening part 101. In this way, the force generated when the first diaphragm 114 and the second diaphragm 124 are actuated by the openings 101 can be more comprehensively contacted and offset, and the manufacturing of the double-sided speaker 1 can be increased. 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 vibrations, so as to avoid noise and distortion caused by resonance.

In an embodiment of the present invention (as shown in FIGS. 2 and 3 ), the magnetic conductive element 10 has a notch 102 on both sides. In this way, the force and air flow generated when the first diaphragm 114 and the second diaphragm 124 are actuated can be made by the cooperation of the notch portions 102 or the cooperation of the opening portions 101 and the notch portions 102 It can fully offset and increase the damping force of the double-sided speaker 1 to prevent the vibration of the first diaphragm 114 and the second diaphragm 124, which will drive the entire double-sided speaker 1 to generate unnecessary vibrations to avoid resonance Produce noise and distortion.

In an embodiment of the present invention (as shown in FIGS. 2 and 3), the two ends of the magnetic conductive element 10 respectively have a first set of connecting portions 103 and a second set of connecting portions 104, each of the first set The connecting portion 103 is combined with the first horn base 112, and each of the second assembling portions 104 is combined with the second horn base 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 in The stability of the magnetically permeable element 10 when acting on both sides. In addition, the magnetically conductive element 10 can be coupled to the first horn base 112 and the second horn base 122 by each of the first assembly connecting portion 103 and each second assembly connecting portion 104, and can also cooperate with the first speaker base 112 and the second speaker base 122. A magnetic loop component 111 and the second magnetic loop component 121 form magnetic lines of force; because both sides of the short axis of the first magnetic loop component 111 have been matched with the first secondary magnetic conductive plates 11112 and the first secondary magnets 11122 to form Complete magnetic lines of force, and both sides of the short axis of the second magnetic return assembly 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 retaining walls or blocking structures are 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 set of connecting portions 103 and the second set of connecting portions 104 to form upward and downward retaining walls Structure to respectively correspond to the first main magnetic plate 11111 and the first main magnet 11121 of the first magnetic return assembly 111 located above, and the second main magnetic plate 12111 and the second main magnetic plate 12111 of the second magnetic return assembly 121 located below. The second main magnet 12121, so that each of the first group connecting portion 103, the first main magnetic plate 11111, and the first main magnet 11121 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 under the magnetic conductive element 10, thereby allowing the first magnetic return component 111 of the first speaker 11 and the The second magnetic return component 121 of the second speaker 12 forms two completely independent magnetic fields (as shown in FIG. 5B).

In an embodiment of the present invention (as shown in FIGS. 2 and 3), both ends of the first horn base 112 have a first mating portion 1121 respectively, and both ends of the second horn base 122 have a first mating portion 1121 respectively. Two pairs Connecting portions 1221, each of the first connecting portions 1121 is combined with each of the first group of connecting portions 103, each of the second connecting portions 1221 is combined with each of the second group of connecting portions 104, and each of the first group of connecting portions 103 is combined with The first mating portion 1121 of the first horn base 112 can be a concave-convex structure, a snap structure, or an embedded structure that is butted with each other. Each of the second assembling portion 104 and the second mating portion 1221 of the second horn base 122 can be It is a concave-convex structure, a buckle structure, and an embedding structure that are butted with 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 in The stability of the magnetically permeable element 10 when acting on both sides.

In an embodiment of the present invention (as shown in FIGS. 2 and 3), both ends of the first horn base 112 have a first coupling portion 1122 respectively, and both ends of the second horn base 122 have a second Combining portions 1222, each of the second combining portions 1222 and each of the first combining portions 1122 are assembled correspondingly, and each of the second combining portions 1222 and each of the first combining portions 1122 may be a concave-convex structure or a buckle structure that is butted with each other , Embedding structure, so that the second speaker base 122 and the first speaker base 112 are firmly combined with each other to maintain the stability of the first speaker 11 and the second speaker 12 when they act on both sides of the magnetic element 10 sex.

The present invention has been disclosed in a preferred embodiment above, but those skilled in the art should understand that the embodiment is 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 included in 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 speaker

10: Magnetic element

101: Hole

102: Notch

103: The first group of joints

104: The second group of joints

11: The first speaker

111: The first magnetic return assembly

112: The first speaker seat

1122: The first joint

114: first diaphragm

12: second speaker

121: The second magnetic return assembly

1212: The second magnet group

12121: second main magnet

12122: second magnet

122: second speaker seat

1221: The second docking part

1222: second joint

123: second voice coil

125: second magnetic gap

Claims (7)

A double-sided speaker, comprising: a magnetic element having a plurality of openings connecting two surfaces; a first speaker arranged on one surface of the magnetic element, the first speaker including a first magnetic loop Component, a first speaker base, a first voice coil, and a first diaphragm, the first magnetic return component is located on a surface of the magnetic conductive element, the first magnetic return component has a first magnetic gap, and the first magnetic return component has a first magnetic gap. A magnetic gap corresponds to the openings, the first speaker base is configured with the first magnetic return assembly, the first voice coil is movably configured in the first magnetic gap and is configured with the first diaphragm, and the first vibration The membrane is configured with the first speaker base; and a second speaker arranged on the other surface of the magnetic conductive element. The second speaker includes a second magnetic return component, a second speaker base, and a second voice coil And a second diaphragm. The second magnetic loop component is located on the other surface of the magnetic conductive element. The second magnetic loop component has a second magnetic gap corresponding to the openings. Two speaker mounts are configured with the second magnetic return assembly, the second voice coil is movably configured in the second magnetic gap and is configured with the second diaphragm, the second diaphragm is configured with the second speaker mount, and the second The horn base and the first horn base are combined with each other. The double-sided speaker according to claim 1, wherein the two sides of the magnetic conductive element are respectively provided with a notch. The double-sided speaker according to claim 1, wherein the two ends of the magnetically conductive element respectively have a first set of connecting portions and a second set of connecting portions, and each of the first set of connecting portions is combined with the first speaker base, Each of the second set of connecting parts is combined with the second speaker base. The double-sided speaker according to claim 3, wherein both ends of the first speaker base each have a first docking portion, both ends of the second speaker base each have a second docking portion, and each of the first docking portions Combine with each of the first group of connecting parts, and each of the second butting parts are combined with each of the second group of connecting parts. The double-sided speaker according to claim 1, wherein both ends of the first speaker base are respectively provided with a first coupling portion, both ends of the second speaker base are respectively provided with a second coupling portion, and each of the second coupling portions The second horn base and the first horn base are combined with each other by being assembled and connected correspondingly with each of the first coupling parts. The double-sided speaker according to claim 1, wherein the first magnetic return assembly includes a first magnetic permeable group and a first magnet group, the first magnetic permeable group is laminated on the first magnet group, and the first magnet Assembled on a surface of the magnetically permeable element, the first magnetic permeable group has a first main magnetic plate and two first auxiliary magnetic plates, the first auxiliary magnetic plates are respectively located on the first main magnetic plate On both sides; the first magnet group has a first main magnet and two first auxiliary magnets, the first auxiliary magnets are respectively located on both sides of the first main magnet. The double-sided speaker according to claim 1, wherein the second magnetic return assembly includes a second magnetic permeable group and a second magnet group, the second magnetic permeable group is laminated on the second magnet group, and the second magnet Set on the other surface of the magnetically conductive element, the second magnetically conductive group has a second main magnetic plate and two second secondary magnetically conductive plates, the second secondary magnetically conductive plates are respectively located on the second main magnetic plate The second magnet group has a second main magnet and two second auxiliary magnets, the second auxiliary magnets are located on both sides of the second main magnet.

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