TWI788195B - Thin double-sided vibrating speaker - Google Patents

Abstract

A thin double-sided vibration loudspeaker, which includes a magnetic loop assembly, a first vibration assembly, and a second vibration assembly; the magnetic loop assembly includes a main magnetic plate, a first magnetic circuit unit, a second magnetic circuit unit, and a side magnetic circuit unit, the first A magnetic circuit unit is arranged on one side of the main magnetic plate, a second magnetic circuit unit is arranged on the other side of the main magnetic plate, side magnetic circuit units are arranged on the main magnetic plate and correspond to both sides of the first magnetic circuit unit, and the first vibration The component is set on one side of the magnetic return component, and the second vibrating component is set on the other side of the magnetic return component. Thereby, the thin double-sided vibrating loudspeaker of the present invention not only meets the requirement of thinning, but also has the effects of vibration reduction and two-way sound generation.

Description

Thin double-sided vibrating speaker

The present invention provides a thin double-sided vibrating speaker, especially a thin double-sided vibrating loudspeaker that can meet the requirements of thinning, vibration reduction and two-way sound generation.

In order to achieve the purpose of two-way sounding, a general speaker usually combines two vibrating components and two magnetic return components in a symmetrical design, which leads to the problem that it is difficult to realize the thinning of the speaker.

Therefore, how to invent a thin double-sided vibrating loudspeaker, in order not only to meet the thinning requirements, but also to have the purpose of vibration reduction and two-way sound generation, will be actively disclosed by the present invention.

In view of the shortcomings of the above-mentioned known technology, the inventor feels that it is not perfect, so he exhausts his mind to study and overcome it, and then develops a thin double-sided vibration speaker, in order to not only meet the requirements of thinning, but also at the same time It has the purpose of vibration reduction and two-way sound.

To achieve the above and other purposes, the present invention provides a thin double-sided vibrating speaker, which includes: a magnetic return component, a first vibrating component and a second vibrating component. The magnetic return assembly includes a main magnetic board, a first magnetic circuit unit, a second magnetic circuit unit and two side magnetic circuit units, the main magnetic board is provided with a central board and two side boards, the central board One surface has a first assembling part, the other surface of the central board has a second assembling part, and the central board has a communication part, and the communication part connects the first assembling part and the second assembling part , and the central plate has a ventilating portion that communicates with the surface and the other surface, each of the side plates is located on both sides of the central plate, and one surface of each of the side plates has A third assembling part, the first magnetic circuit unit is arranged in the first assembling part, the second magnetic circuit unit is arranged in the second assembling part, each side magnetic circuit unit is arranged in each of the third assembling parts, the The first magnetic circuit unit and the second magnetic circuit unit are bonded to each other through the connecting portion, and the side magnetic circuit units correspond to the two sides of the first magnetic circuit unit respectively; the first vibrating component includes a first horn base, A first voice coil and a first diaphragm, the first speaker base and one surface of the magnetic return assembly are arranged, and the first voice coil is movably arranged between the first magnetic circuit unit and each of the side magnetic circuit units , the first diaphragm is configured with the first speaker seat; the second vibrating assembly includes a second speaker seat, a second voice coil and a second diaphragm, the second speaker seat and the magnetic return assembly A surface configuration, the second voice coil is movably disposed on the outer periphery of the second magnetic circuit unit, the second diaphragm is configured with the second horn base, and the second horn base and the first horn base are combined with each other.

To achieve the above and other purposes, the present invention further provides a thin double-sided vibration speaker, which includes: a magnetic return component, a first vibration component and a second vibration component. The magnetic return assembly includes a main magnetic board, a first magnetic circuit unit, a second magnetic circuit unit and two side magnetic circuit units, the main magnetic board is provided with a central board and two side boards, the central board One surface has a first assembly portion, the other surface of the central plate has a second assembly portion, the central plate has a ventilating portion connecting the surface and the other surface, and each side plate is located on On both sides of the central board, one surface of each side board has a third assembly part, the first magnetic circuit unit is arranged on the first assembly part, and the second magnetic circuit unit is arranged on the second assembly part. Each of the side magnetic circuit units is located in each of the third assembly parts, and the side magnetic circuit units respectively correspond to the two sides of the first magnetic circuit unit; the first vibrating assembly includes a first horn base, a first A voice coil and a first diaphragm, the first speaker seat and one surface of the magnetic return assembly are arranged, the first voice coil is movably arranged between the first magnetic circuit unit and each of the side magnetic circuit units, the first A diaphragm is configured with the first horn base; the second vibrating component includes a second horn base, a second voice coil and a second diaphragm, and the second horn base and the The other surface of the magnetic return component is arranged, the second voice coil is movably arranged on the outer periphery of the second magnetic circuit unit, the second diaphragm is arranged with the second speaker seat, and the second speaker seat is connected with the first speaker The seats are combined with each other.

In the thin double-sided vibrating loudspeaker described above, the first voice coil is movably disposed outside the central plate body, and the central plate body has four guide angles.

In the above-mentioned thin double-sided vibration speaker, the two sides of the central board are respectively connected to the side boards by a bending section, and the other surface of the central board is formed into a concave shape through the bending sections. The second assembling part, and making each of the third assembling parts lower than the first assembling part, so that the side magnetic circuit units respectively correspond to two sides of the first magnetic circuit unit.

In the thin double-sided vibrating loudspeaker described above, both ends of each of the side boards have a limiting portion, and the inner edge of the second horn base has a fixed portion corresponding to one of the limiting portions.

In the above-mentioned thin double-sided vibration speaker, the first magnetic circuit unit has at least a first magnet and a first magnetic conductive plate, the first magnet is arranged on the first assembly part, and the first magnetic conductive plate is arranged on the The first magnet, the second magnetic circuit unit has at least a second magnet and a second magnetic conductive plate, the second magnet is arranged on the second assembly part, the second magnetic conductive plate is arranged on the second magnet, and The first magnet is bonded to the second magnet through the communicating portion.

In the above-mentioned thin double-sided vibration speaker, each of the side magnetic circuit units has at least one side magnet and at least one side magnetic conducting plate, the side magnet is disposed on the third assembly portion, and the side magnetic conducting plate is disposed on the side magnet.

In the above-mentioned thin double-sided vibration speaker, each of the side magnetic circuit units has a plurality of side magnets, and a vent hole is formed between the adjacent side magnets, and the vent hole communicates with the vent parts, and the first speaker base and The second trumpet base is respectively provided with a corresponding ventilation gap, and the ventilation gaps communicate with the ventilation parts.

In the above-mentioned thin double-sided vibration speaker, the width and length of the first voice coil are greater than the width and length of the second voice coil, and the magnetic force of the first magnetic circuit unit is smaller than that of the second magnetic circuit unit.

In the above-mentioned thin double-sided vibration speaker, the two ends of one side of the first speaker base are respectively provided with a first conductive part and a first lead-in groove, and the two lead-wires of the first voice coil respectively pass through the first lead-out grooves Electrically connect each of the first conductive parts; the two ends of one side of the second speaker base are respectively provided with a second conductive part and a second lead groove, and the two lead wires of the second voice coil pass through each of the second lead grooves Each of the second conductive parts is electrically connected, and each of the first conductive parts is electrically connected to each of the second conductive parts.

Thereby, the thin double-sided vibrating loudspeaker of the present invention not only meets the requirement of thinning, but also has the effects of vibration reduction and two-way sound generation.

10: Thin double-sided vibration speaker

10': Thin double-sided vibrating speaker

1: Magnetic return components

1': Magnetic back assembly

11: Leading magnetic board

11': Main magnetic plate

111: central plate body

111': central board

1111:First Assembly Department

1111': First Assembly Department

1112:Second Assembly Department

1112': The second assembly department

1113:Connection Department

1114: Vent

1114': ventilation part

1115: Bending section

1115': bending section

1116: lead angle

112: Side plate body

112': side plate body

1121: The third assembly department

1121': The third assembly department

1122: limit part

1122': limit part

12: The first magnetic circuit unit

121: The first magnet

122: The first magnetic plate

13: The second magnetic circuit unit

131: second magnet

132: The second magnetic plate

14: Side magnetic circuit unit

141: side magnet

142: side magnetic plate

143: vent hole

2: The first vibration component

21: The first speaker seat

22: First voice coil

221: Lead

23: The first diaphragm

24: ventilation gap

25: The first conductive part

26: The first lead groove

3: The second vibration component

31:Second speaker seat

311: Fixed part

32: second voice coil

321:lead

33: Second diaphragm

34: ventilation gap

35: The second conductive part

36: The second lead groove

[Fig. 1] is a schematic view of the appearance of the thin double-sided vibration speaker of the present invention.

[Fig. 2] is an exploded schematic view of the thin double-sided vibration speaker of the present invention.

[Fig. 3] is another exploded schematic view of the thin double-sided vibrating speaker of the present invention.

[Fig. 4] is an exploded schematic diagram of the magnetic return assembly of the present invention.

[Fig. 5] is the first schematic diagram of the assembly state of the magnetic return assembly of the present invention.

[Fig. 6A] is the second schematic diagram of the assembly state of the magnetic return assembly of the present invention.

[Fig. 6B] is the third schematic diagram of the assembly state of the magnetic return assembly of the present invention.

[Fig. 7A] is the fourth schematic diagram of the assembly state of the magnetic return assembly of the present invention.

[Fig. 7B] is the fifth schematic diagram of the assembly state of the magnetic return assembly of the present invention.

[Fig. 8] is a schematic diagram of the A-A sectional state of Fig. 1 of the present invention.

[ Fig. 9 ] is a schematic diagram of the B-B sectional state of Fig. 1 of the present invention.

[Fig. 10] is a schematic diagram of the first voice coil of the present invention being movably arranged outside the central plate.

[Fig. 11] is a schematic view of the appearance of another embodiment of the main magnetic plate of the present invention.

[Fig. 12] is a schematic view of the appearance of another embodiment of the magnetic return assembly of the present invention.

[ Fig. 13 ] is a schematic cross-sectional view of another embodiment of the thin double-sided vibrating speaker of the present invention.

In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail by the following specific embodiments in conjunction with the accompanying drawings. The description is as follows: Please refer to Figures 1 to 9, as As shown in the figure, the present invention provides a thin double-sided vibrating loudspeaker 10 , which includes: a magnetic return component 1 , a first vibrating component 2 and a second vibrating component 3 .

The magnetic return assembly 1 includes a main magnetic plate 11, a first magnetic circuit unit 12, a second magnetic circuit unit 13, and two side magnetic circuit units 14. The main magnetic plate 11 is provided with a central plate 111 and two sides. Plate body 112, one surface of the central plate body 111 has a first assembly portion 1111, the other surface of the central plate body 111 has a second assembly portion 1112, and the central plate body 111 has a communicating portion 1113 (such as communication hole), the communication part 1113 communicates with the first assembly part 1111 and the second assembly part 1112, and the central plate 111 has a ventilation part 1114 (such as a ventilation hole) connecting the surface and the other surface, each of the The side boards 112 are arranged on both sides of the central board 111, and one surface of each of the side boards 112 has a third assembly part 1121, and the first magnetic circuit unit 12 is arranged on the first assembly part 1111, The second magnetic circuit unit 13 is arranged in the second assembly part 1112, each of the side magnetic circuit units 14 is arranged in each of the third assembly parts 1121, the first magnetic circuit unit 12 and the second magnetic circuit unit 13 pass through the The connecting parts 1113 are attached to each other, and each side magnetic circuit unit 14 corresponds to two sides of the first magnetic circuit unit 12 .

The first vibrating assembly 2 includes a first speaker seat 21, a first voice coil 22 and a first diaphragm 23, the first speaker seat 21 is configured with one surface of the magnetic return assembly 1, and the first voice coil 22 activities The first diaphragm 23 is arranged in the magnetic gap between the first magnetic circuit unit 12 and each of the side magnetic circuit units 14 , and the first horn base 21 is arranged.

The second vibrating assembly 3 includes a second horn base 31, a second voice coil 32 and a second diaphragm 33, the second horn base 31 is configured with the other surface of the magnetic return assembly 1, the second voice coil The ring 32 is movably disposed in the magnetic gap on the outer periphery of the second magnetic circuit unit 13 , the second diaphragm 33 is disposed with the second horn base 31 , and the second horn base 31 is combined with the first horn base 21 .

As shown in Figures 4 to 7B, wherein, the lower figure of Figure 5 is a side view of the upper figure, the lower figure of Figure 6B is a side view of the upper figure, and the lower figure of Figure 7B is a cross-sectional view of the upper figure, when the magnetic return When the assembly 1 is assembled, each side magnetic circuit unit 14 can be first fixed on each side plate body 112 of the main magnetic plate 11 and then magnetized, and then the second magnetic circuit unit 13 can be magnetized first After that, it is fixed on the second assembly part 1112 of the central plate 111, and finally the first magnetic circuit unit 12 is magnetized first, and then fixed on the central plate with related jigs (not shown). 111 of the first assembly part 1111, and make the first magnetic circuit unit 12 and the second magnetic circuit unit 13 adhere to each other, and the polarity of the bonding surface of the first magnetic circuit unit 12 and the second magnetic circuit unit 13 is the same (that is, the polarities of the bonding surfaces of the first magnetic circuit unit 12 and the second magnetic circuit unit 13 repel each other), the first magnetic circuit unit 12 and the second magnetic circuit unit 13 are bonded to each other through the communicating portion 1113 , the side magnetic circuit units 14 respectively correspond to the two sides of the first magnetic circuit unit 12 . After the above-mentioned assembly is completed, the first voice coil 22 of the first vibrating component 2 is movably arranged in the magnetic gap between the first magnetic circuit unit 12 and each of the side magnetic circuit units 14, and the second The second voice coil 32 of the vibrating component 3 is movably disposed in the magnetic gap on the outer periphery of the second magnetic circuit unit 13 , and makes the second horn base 31 and the first horn base 21 combine with each other. After the aforementioned combination, the first magnetic circuit unit 12 and the second magnetic circuit unit 13 can be directly attached to reduce the overall height of the magnetic return assembly 1, and the magnetic return assembly 1, the first vibration After the assembly 2 and the second vibration assembly 3 are combined, a thin double-sided vibration speaker 10 is formed.

As shown in Figures 1 to 4 and Figures 8 to 10, when the thin double-sided vibration speaker 10 of the present invention is in use, it can be combined with a sound box (not shown), so that the first voice coil 22 can pass through the The first magnetic circuit unit 12 and each side magnetic circuit unit 14 form an upper independent magnetic field, and make the second voice coil 32 form a lower independent magnetic field through the second magnetic circuit unit 13, so that the thin double-sided vibration The loudspeaker 10 forms two completely independent upper and lower magnetic fields so that the first voice coil 22 and the second voice coil 32 push the first diaphragm 23 and the second diaphragm 33 to vibrate through electromagnetic action.

When the first vibrating element 2 and the second vibrating element 3 are actuated, the first vibrating membrane 23 and the second vibrating membrane 23 and the second vibrating element 32 are connected to each other after the first voice coil 22 and the second voice coil 32 receive an electronic signal input from the outside. The two vibrating membranes 33 move outward and inward at the same time. When the first vibrating membrane 23 and the second vibrating membrane 33 move outward simultaneously, the air is pushed to vibrate and produce sound. When the two vibrating membranes 33 move inward at the same time, the two acting forces will offset each other, so that the first vibrating component 2 and the second vibrating component 3 can realize the function of vibration reduction, avoiding the vibration caused by the first vibrating membrane 23 and the second vibrating component 3. The active force generated by the action of the diaphragm 33 drives the entire thin double-sided vibrating speaker 10 to vibrate accordingly.

In addition, in addition to positioning the first magnetic circuit unit 12 with the first assembly part 1111 and accommodating the second magnetic circuit unit 13 with the second assembly part 1112, the central plate 111 is Itself is also a part of the magnetic conduction plate, so the central plate body 111 can also be extended from its two ends to the outside of the two side plate bodies 112 to play a magnetic conduction function, so that the magnetic force of the first magnetic circuit unit 12 can be extended to Two ends of the long axis of the first voice coil 22 (as shown in FIG. 8 and FIG. 10 ). Moreover, as shown in FIG. 10, since the first voice coil 22 can be movably arranged outside the central plate 111, the central plate 111 can have four chamfers 1116 to avoid the first voice coil 22, thereby avoiding When the first voice coil 22 vibrates, it collides with the central board 111 to cause interference.

In addition, since the central plate 111 of the main magnetic plate 11 has a plurality of ventilation parts 1114 connecting one surface of the central plate 111 with the other surface, when the first vibrating component 2 and the second vibrating When the moving assembly 3 operates to generate airflow, it can be fully offset through the ventilation parts 1114, so as to achieve the purpose of damping the vibration of the thin double-sided vibrating speaker 10, so as to avoid noise and distortion caused by resonance.

In this way, the thin double-sided vibration speaker 10 of the present invention can meet the requirements of thinning, vibration reduction and two-way sound generation, and realize two-way sound generation by the design of the double-sided diaphragm of the first diaphragm 23 and the second diaphragm 33 In order to enhance the output volume and bass effect of the thin double-sided vibrating speaker 10. More importantly, due to the simultaneous movement of the first vibrating component 2 and the second vibrating component 3, the acting force between them can be offset, and the vibration damping force of the thin double-sided vibrating speaker 10 can be further increased to prevent the When the first vibrating membrane 23 and the second vibrating membrane 33 vibrate, the entire thin double-sided vibrating speaker 10 will be driven to generate unnecessary vibrations, so as to avoid noise and distortion caused by resonance. In addition, the thin double-sided vibration speaker 10 of the present invention can form an independent upper magnetic field by the first magnetic circuit unit 12 and each of the side magnetic circuit units 14, and form an independent lower magnetic field by the second magnetic circuit unit 13, The upper and lower independent magnetic circuits share a main magnetic plate 11 , so the overall height of the thin double-sided vibration speaker 10 will not be increased. Furthermore, the thin double-sided vibration speaker 10 of the present invention can fully offset the airflow and force generated when the first diaphragm 23 and the second diaphragm 33 are in motion through the cooperation of the ventilation parts 1114, Part of the gas is discharged outside the thin double-sided vibration speaker 10 to adjust the excess air flow inside the thin double-sided vibration speaker 10, thereby increasing the vibration damping force of the thin double-sided vibration speaker 10 and preventing the first diaphragm 23 from contacting the thin double-sided vibration speaker 10. When the second diaphragm 33 vibrates, it drives the entire thin double-sided vibrating speaker 10 to produce unnecessary vibrations, so as to achieve the purpose of damping the vibration of the thin double-sided vibrating speaker 10 and avoid resonance noise and distortion.

As shown in Fig. 4 to Fig. 7B, in one embodiment of the present invention, the two sides of the central board 111 are respectively connected with each of the side boards 112 by a bending section 1115, and through the bending sections 1115 Make the other surface of the central plate 111 form the second assembly part 1112 in a concave shape, and make each of the third assembly parts 1121 lower than the first assembly part 1111, so that the side magnetic circuit units 14 are respectively opposite to each other. Should the first magnetic circuit unit 12 sides. Wherein, as shown in FIG. 4 and FIG. 7B , the top surfaces of the side plate bodies 112 can respectively be first-level platforms (third assembly parts 1121) to set the side magnetic circuit unit 14, and the bent sections 1115 The top surfaces of the central plate body 111 can be the second-level platform respectively, and the top surface of the central board 111 can be the third-level platform. In addition, as shown in FIG. 4, FIG. 7A and FIG. 7B, the communication portion 1113 can be a rectangular hole passing through the third-level platform, and the first assembly portion 1111 can be the top surface and the top surface of the two long sides of the communication portion 1113. The two short-side end surfaces of the communicating portion 1113 are combined with the first magnetic circuit unit 12 , so that the first magnetic circuit unit 12 is limited between the two short-side end surfaces of the communicating portion 1113 . As shown in FIG. 6A and FIG. 6B, the second assembly part 1112 can be located between the second-level platforms, and the second assembly part 1112 can be the sides of the two long sides of the communication part 1113 and the side of the communication part 1113. The top surfaces of the two short sides are combined with the second magnetic circuit unit 13 , so that the second magnetic circuit unit 13 is limited between the two long sides of the communicating portion 1113 . In this way, through the design of the main magnetic plate 11, the first magnetic circuit unit 12 and the second magnetic circuit unit 13 can be attached to each other through the connecting portion 1113, and the side magnetic circuit units 14 correspond to the first magnetic circuit unit 13 respectively. The two sides of the magnetic circuit unit 12 are used to reduce the overall height of the magnetic return assembly 1, thereby realizing the requirement of thinning. In addition, when the thickness of the main magnetic plate 11 is only 0.5 mm, the connecting portion 1113 will reduce the strength of the main magnetic plate 11 . Therefore, the strength of the main magnetic plate 11 can be increased by assembling the first magnetic circuit unit 12 and the second magnetic circuit unit 13 through the first assembling portion 1111 , the second assembling portion 1112 and the connecting portion 1113 . Moreover, as shown in FIG. 9, the first voice coil 22 and the second voice coil 32 can be respectively accommodated above and below the second-order platforms, and the inner part of the bending sections 1115 is formed between The depth of the recess can be adjusted to match the required vibration amplitudes of the first voice coil 22 and the second voice coil 32 .

As shown in Figure 2 and Figure 3, in one embodiment of the present invention, each of the two ends of the side plate body 112 has a limiting portion 1122 (such as a notch), and the inner edge of the second speaker base 31 It has a fixing portion 311 (such as a convex body) correspondingly combined with each of the limiting portions 1122 . In this way, the main magnetic plate 11 can be Each of the limiting portions 1122 of the side plate body 112 is combined with the fixing portion 311 of the second horn base 31 , so that the magnetic return assembly 1 can be assembled stably.

As shown in Figures 4 to 9, in one embodiment of the present invention, the first magnetic circuit unit 12 has at least a first magnet 121 and a first magnetic conductive plate 122, and the first magnet 121 is arranged on the first magnetic plate 122. An assembly part 1111, the first magnetic conductive plate 122 is located on the first magnet 121; the second magnetic circuit unit 13 has at least a second magnet 131 and a second magnetic conductive plate 132, the second magnet 131 is located on the The second assembly part 1112, the second magnetically conductive plate 132 is arranged on the second magnet 131, and the second magnet 131 of the second magnetic circuit unit 13 is connected to the first magnetic circuit unit 12 through the communication part 1113. A magnet 121 is attached to each other, and the polarities of the bonding surfaces of the first magnet 121 and the second magnet 131 are the same (that is, the polarities of the bonding surfaces repel each other); each side magnetic circuit unit 14 has at least one side magnet 141 And at least one side magnetic conducting plate 142 , the side magnet 141 is disposed on the third assembly portion 1121 , and the side magnetic conducting plate 142 is disposed on the side magnet 141 . In this way, the upper independent magnetic field can be formed by the first magnetic circuit unit 12 and each of the side magnetic circuit units 14, and the lower independent magnetic field can be formed by the second magnetic circuit unit 13, so that the thin double-sided vibration speaker 10 Two completely independent magnetic fields, upper and lower, are formed so that the first voice coil 22 and the second voice coil 32 can push the first diaphragm 23 and the second diaphragm 33 to vibrate through electromagnetic action.

In addition, as shown in FIG. 2 to FIG. 7B, the first magnetic circuit unit 12 and each side magnetic circuit unit 14 adopt a multi-magnetic design, for example: composed of a first magnet 121 and four side magnets 141, wherein The side magnets 141 on the same side share a side magnetic guide plate 142; in addition, each side magnet 141 can also be equipped with a side magnetic guide plate 142, that is, the design of four side magnetic guide plates 142, and when the speaker is long When the aspect ratio is longer, a seven-magnet design may also be adopted, that is, one first magnet 121 and six side magnets 141 are formed. Or according to the needs of actual use, the first magnetic circuit unit 12 and each of the side magnetic circuit units 14 adopt a three-magnet design, for example: it is composed of a first magnet 121 and two side magnets 141, and each The side magnet 141 has a side magnetic conductive plate 142 .

As shown in Figures 1 to 7B, in one embodiment of the present invention, when each of the side magnetic circuit units 14 has a plurality of side magnets 141, a ventilation hole 143 is formed between the adjacent side magnets 141. The ventilation hole 143 communicates with the ventilation parts 1114 , and the first horn base 21 and the second horn base 31 respectively have a corresponding ventilation gap 24 , 34 , and the ventilation gaps 24 , 34 communicate with the ventilation parts 1114 . In this way, the thin double-sided vibration speaker 10 of the present invention can make the first diaphragm 23 and the second diaphragm 33 The airflow and force generated during the actuation can be fully offset, and part of the gas can be discharged to the outside of the thin double-sided vibration speaker 10, so as to adjust the excess air flow inside the thin double-sided vibration speaker 10 and increase the volume of the thin double-sided vibration speaker 10. The vibration suppression force of the vibration speaker 10 prevents the entire thin double-sided vibration speaker 10 from generating unnecessary vibration when the first diaphragm 23 and the second diaphragm 33 vibrate, so as to achieve the purpose of vibration suppression of the thin double-sided vibration speaker 10 To avoid noise and distortion caused by resonance.

As shown in FIG. 3 , FIG. 8 and FIG. 9 , in one embodiment of the present invention, the width and length of the first voice coil 22 are greater than the width and length of the second voice coil 32 . In the embodiment of the present invention, although the magnetic force of the first magnet 121 is smaller than the magnetic force of the second magnet 131, because the first voice coil 22 of the first vibrating component 2 is larger, the winding wire is longer and longer. The winding of the first voice coil 22 is matched with the first magnetic circuit unit 12 and each of the side magnetic circuit units 14, which will help to increase the electromagnetic force, so that the electromagnetic force that promotes the first vibrating component 2 is the same as that that promotes the second The electromagnetic force of the vibrating assembly 3 is roughly the same, so that the displacements of the first diaphragm 23 and the second diaphragm 33 are similar, so the airflow generated by the two diaphragms can be fully offset to achieve the purpose of damping . In addition, as shown in FIG. 3 and FIG. 8 , the first magnetic circuit unit 12 can direct the magnetic field of the first magnetic circuit unit 12 toward the two ends of the first magnetic circuit unit 12 through the two ends of the central plate 111 . The short sides extend to the vicinity of the two short sides of the inner edge of the first voice coil 22 to enhance the electromagnetic interaction between the first magnetic circuit unit 12 and the first voice coil 22 .

As shown in Figures 1 to 3, in one embodiment of the present invention, a first conductive part 25 (such as an L-shaped conductive plate) and a first lead wire are respectively provided at both ends of one side of the first horn base 21. Slot 26, the two lead wires 221 of the first voice coil 22 are respectively electrically connected to each of the first conductive parts 25 through each of the first lead wire slots 26; two ends of one side of the second speaker base 31 are respectively provided with a second conductive part part 35 (such as an L-shaped conductive plate) and a second lead wire slot 36, and the two lead wires 321 of the second voice coil 32 are electrically connected to the second conductive parts 35 through the second lead wire slots 36, respectively. In the embodiment of the present invention, the first conductive parts 25 and the second conductive parts 35 are located on the same side of the thin double-sided vibration speaker 10, when the first speaker base 21 and the second speaker base 31 are assembled When combined, each of the first conductive parts 25 and each of the second conductive parts 35 will be electrically connected to each other and conducted (that is, two voice coils in parallel), wherein each of the second conductive parts 35 can be more protruding from the second conductive part 35. The speaker base 31 enables the external sound source signal to simultaneously activate the first voice coil 22 and the second voice coil 32 when the second conductive parts 35 are electrically connected. In addition, in this embodiment, the two lead wires 221 of the first voice coil 22 can contact each of the first conductive parts 25 through the first lead wire slots 26 respectively, and the two lead wires 321 of the second voice coil 32 can firstly Contact each second conductive portion 35 through each second lead groove 36 respectively, and then the lead wire 221 , lead wire 321 , first conductive portion 25 and second conductive portion 35 on the same side can be welded together by welding.

Please refer to FIG. 11 to FIG. 13 , as shown in the figures, the present invention provides another thin double-sided vibration speaker 10 ′, which is different from the above-mentioned thin double-sided vibration speaker 10 in that the magnetic return assembly of this embodiment The central plate body 111' of the main magnetic plate 11' of 1' does not have a communicating part, and the first assembly part 1111' is located on the top surface of the central plate body 111' to set the first magnetic circuit unit 12, and the second assembly part 1112 'is located on the bottom surface of the central board 111' to set the second magnetic circuit unit 13. In addition, the thin double-sided vibration speaker 10' of this embodiment is the same as the above-mentioned thin double-sided vibration speaker 10 in that the central board 111' has a vent 1114' communicating with the top surface and the bottom surface. The side plate body 112' is arranged on both sides of the central plate body 111', and the top surface of each side plate body 112' has a third assembly part 1121' to set the side magnetic circuit unit 14, and each side magnetic circuit unit The circuit unit 14 corresponds to both sides of the first magnetic circuit unit 12, and the two ends of each of the side plate bodies 112' respectively have limiting parts 1122', and the first vibrating component 2 is arranged on the top surface of the magnetic circuit component 1' , the second vibrating component 3 is arranged on the bottom surface of the magnetic return component 1', and the two sides of the central plate 111' can be respectively connected to the side plates 112' by bending sections 1115', the only difference is this embodiment The bending section 1115' is a two-fold type, and the above-mentioned bending section 1115 is a four-fold type. Through these bending sections 1115', the bottom surface of the central plate 111' can be formed into a concave second assembly part 1112', and make each of the third assembly parts 1121' lower than the first assembly part 1111', so that the side magnetic circuit units 14 correspond to the two sides of the first magnetic circuit unit 12 respectively. Thus, the thin double-sided vibration speaker 10' of this embodiment can form an upper independent magnetic field with the first magnetic circuit unit 12 and each of the side magnetic circuit units 14, and form a lower independent magnetic field with the second magnetic circuit unit 13. The magnetic field, and the upper and lower independent magnetic circuits share a main magnetic plate 11', so the overall height of the thin double-sided vibration speaker 10' will not be increased. In addition, other unmentioned structures and functions of this embodiment can refer to the above-mentioned thin double-sided vibration speaker 10 .

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 the embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the scope of the patent application.

10: Thin double-sided vibration speaker

1: Magnetic return components

11: Leading magnetic board

111: central plate body

1115: Bending section

112: Side plate body

1122: limit part

12: The first magnetic circuit unit

122: The first magnetic plate

13: The second magnetic circuit unit

14: Side magnetic circuit unit

141: side magnet

142: side magnetic plate

143: vent hole

2: The first vibration component

21: The first speaker seat

22: First voice coil

221: Lead

23: The first diaphragm

24: ventilation gap

25: The first conductive part

26: The first lead groove

3: The second vibration component

31:Second speaker seat

311: Fixed part

32: second voice coil

321:lead

33: Second diaphragm

34: ventilation gap

35: The second conductive part

36: The second lead groove

Claims (9)

A thin double-sided vibrating loudspeaker, which includes: a magnetic return assembly, which includes a main magnetic plate, a first magnetic circuit unit, a second magnetic circuit unit and two side magnetic circuit units, the main magnetic plate is provided with a central plate Body and two side plate bodies, one surface of the central plate has a first assembly part, the other surface of the central plate has a second assembly part, and the central plate has a communication part, the communication part The first assembling part and the second assembling part are communicated, and the central board has a ventilation part communicating with the surface and the other surface, each of the side boards is arranged on both sides of the central board, each of the side One surface of the side plate body has a third assembling part, the first magnetic circuit unit is arranged on the first assembling part, the second magnetic circuit unit is arranged on the second assembling part, each side magnetic circuit unit is arranged on each In the third assembling part, the first magnetic circuit unit and the second magnetic circuit unit are attached to each other through the communicating part, and the side magnetic circuit units respectively correspond to the two sides of the first magnetic circuit unit; a first vibrating component , which includes a first speaker seat, a first voice coil and a first diaphragm, the first speaker seat is arranged on one surface of the magnetic return assembly, and the first voice coil is movably arranged on the first magnetic circuit unit Between each of the side magnetic circuit units, the first diaphragm is configured with the first horn base; and a second vibrating component includes a second horn base, a second voice coil, and a second diaphragm, The second horn base is configured with the other surface of the magnetic return assembly, the second voice coil is movably disposed on the outer periphery of the second magnetic circuit unit, the second diaphragm is configured with the second horn base, and the second The horn base is combined with the first horn base; Wherein the two sides of the central plate body are respectively connected to the side plate bodies by a bending section, and the other surface of the central plate body is formed into a concave second assembly part by the bending sections, and the Each of the third assembling parts is lower than the first assembling part, so that the side magnetic circuit units respectively correspond to two sides of the first magnetic circuit unit. A thin double-sided vibrating loudspeaker, which includes: a magnetic return assembly, which includes a main magnetic plate, a first magnetic circuit unit, a second magnetic circuit unit and two side magnetic circuit units, the main magnetic plate is provided with a central plate Body and two side plate bodies, one surface of the central plate has a first assembly part, the other surface of the central plate has a second assembly part, the central plate has a connecting surface and the other surface Each of the side plates is arranged on both sides of the central plate, and one surface of each of the side plates has a third assembling portion, the first magnetic circuit unit is arranged on the first assembling portion, The second magnetic circuit unit is arranged in the second assembling part, and each side magnetic circuit unit is arranged in each of the third assembling parts, and the side magnetic circuit units respectively correspond to both sides of the first magnetic circuit unit; a first The vibration component includes a first horn base, a first voice coil and a first diaphragm, the first horn base is configured with one surface of the magnetic return component, and the first voice coil is movably disposed on the first magnetic return component. Between the circuit unit and each of the side magnetic circuit units, the first diaphragm is configured with the first horn base; and a second vibrating component, which includes a second horn base, a second voice coil and a second vibration membrane, the second speaker seat is arranged on the other surface of the magnetic return component, the second voice coil is movably arranged on the outer periphery of the second magnetic circuit unit, the second diaphragm is arranged on the second speaker seat, the The second horn base is combined with the first horn base; Wherein the two sides of the central plate body are respectively connected to the side plate bodies by a bending section, and the other surface of the central plate body is formed into a concave second assembly part by the bending sections, and the Each of the third assembling parts is lower than the first assembling part, so that the side magnetic circuit units respectively correspond to two sides of the first magnetic circuit unit. The thin double-sided vibration speaker according to claim 1 or 2, wherein the first voice coil is movably arranged outside the central plate, and the central plate has four corners. The thin-type double-sided vibration speaker as described in claim 1 or 2, wherein each of the two ends of the side plates has a limiting portion, and the inner edge of the second horn base has a corresponding one of the limiting portions. Fixed part. The thin-type double-sided vibration speaker as described in Claim 1, wherein the first magnetic circuit unit has at least one first magnet and a first magnetic conductive plate, the first magnet is arranged on the first assembly part, and the first magnetic conductive plate The magnetic plate is arranged on the first magnet, the second magnetic circuit unit has at least one second magnet and a second magnetic conducting plate, the second magnet is arranged on the second assembly part, and the second magnetic conducting plate is arranged on the the second magnet, and the first magnet is bonded to the second magnet through the communicating portion. The thin double-sided vibration speaker as claimed in claim 1 or 2, wherein each side magnetic circuit unit has at least one side magnet and at least one side magnetic conduction plate, the side magnet is arranged on the third assembly part, and the side magnetic conduction plate The plate is located on the side of the magnet. The thin double-sided vibration speaker as described in claim 6, wherein each of the side magnetic circuit units has a plurality of side magnets, and a vent hole is formed between the adjacent side magnets, and the vent hole communicates with the vent parts, and the The first horn base and the second horn base are respectively provided with a corresponding ventilation gap, and the ventilation gaps communicate with the ventilation parts. The thin double-sided vibration speaker according to claim 1 or 2, wherein the width and length of the first voice coil are greater than the width and length of the second voice coil, and the magnetic force of the first magnetic circuit unit is smaller than that of the second magnetic circuit The magnetism of the unit. The thin-type double-sided vibration speaker as described in claim 1 or 2, wherein the two ends of one side of the first speaker base are respectively provided with a first conductive part and a first lead groove, and the two lead wires of the first voice coil are respectively Each of the first conductive parts is electrically connected through each of the first lead slots; a second conductive part and a second lead slot are respectively provided at both ends of one side of the second speaker base, and the two lead wires of the second voice coil are respectively Each of the second conductive parts is electrically connected via each of the second lead grooves, and each of the first conductive parts is electrically connected to each of the second conductive parts.

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