WO2024051508A1

WO2024051508A1 - Loudspeaker

Info

Publication number: WO2024051508A1
Application number: PCT/CN2023/115167
Authority: WO
Inventors: 安德烈
Original assignee: 意科技术(东莞)有限公司
Priority date: 2022-09-05
Filing date: 2023-08-28
Publication date: 2024-03-14
Also published as: CN218550173U

Abstract

A loudspeaker, comprising: a panel, wherein the panel is provided with a first assembly area and a second assembly area, and the first assembly area and the second assembly area are located on a same plane; a diaphragm, wherein a sound outlet hole is formed in the first assembly area, the diaphragm is arranged in the sound outlet hole, and a first connection portion is provided at the inner end part of the diaphragm; a magnet unit, wherein the magnet unit is arranged in the second assembly area, the magnet unit is provided with a voice coil, and a second connection portion is provided at the inner end part of the voice coil; and a transmission member, wherein the first connection portion and the second connection portion are separately connected to the transmission member. During assembly, the diaphragm is mounted in the first assembly area of the panel, and the magnet unit is mounted in the second assembly area of the panel, such that the diaphragm and the magnet unit are located on a same plane, and the assembling structures of the diaphragm and the magnet unit in a same axial direction are changed into assembling structures on a same plane, thereby reducing the thickness of the loudspeaker.

Description

a speaker

Technical field

The utility model relates to the technical field of speakers, in particular to a speaker.

Background technique

The speaker is a transducer device that converts electrical signals into acoustic signals. It generally consists of a magnetic circuit system (permanent magnet, core column, magnetic conductive plate), vibration system (paper cone, voice coil) and support auxiliary system (centering support). It is composed of three parts: plate, basin frame, and edge.

technical problem

In the existing technology, the magnetic circuit system, vibration system and support auxiliary system are generally assembled on the same axis, which has the following shortcomings: (1) In the traditional assembly structure, the paper cone is fixed in front of the magnetic circuit system through the cone frame. It is difficult to improve the thickness of the speaker, resulting in the speaker being thick and bulky; (2) The traditional assembly method is single, and a single magnetic circuit system can only be used for a single vibration system, which limits the application scope of the speaker.

Technical solutions

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of this utility model is to provide a speaker with small thickness and wide application range.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

A loudspeaker including:

A panel, the panel has a first assembly area and a second assembly area, the first assembly area and the second assembly area are located on the same plane;

Diaphragm, the first assembly area is provided with a sound hole, the diaphragm is arranged in the sound hole, and the inner end of the diaphragm is provided with a first connecting portion;

a magnet unit, the magnet unit is disposed on the second assembly area, the magnet unit has a voice coil, and the inner end of the voice coil is provided with a second connection part; and

A transmission member, the first connecting part and the second connecting part are respectively connected to the transmission member.

More preferably, the diaphragm is made of lightweight materials with a certain hardness, such as honeycomb cardboard, fiberglass, carbon fiber, polycarbonate, and very light metals (aluminum, titanium alloy).

More preferably, the panel is made of rigid materials, such as plastic, light metal (aluminum), and wood, which have better support effects; further preferably, the rigid material is PVC plastic, which has excellent corrosion resistance and insulation. And has certain mechanical strength.

More preferably, the transmission member can be made of, but is not limited to, one of glass fiber, carbon fiber, plastic, wood or metal; further preferably, the transmission member is made of titanium metal, which has strong anti-damping properties and is subject to mechanical damage. After vibration or electrical vibration, its own vibration attenuation time is longer, which is beneficial to reducing the loss of vibration transmission.

More preferably, the diaphragm can be a conical diaphragm or a planar diaphragm, and the shape can be but not limited to circular, rectangular, elliptical, etc.

Preferably, the edge of the diaphragm is provided with a folding ring, and the folding ring is adapted to the sound outlet.

Preferably, it also includes:

An elastic layer covers the outer surface of the panel, and the outer end surface of the diaphragm is in contact with the inner end surface of the elastic layer.

More preferably, the elastic layer can be, but is not limited to, canvas, elastic film, elastic fabric, etc.; further preferably, the elastic layer is canvas, which has good air tightness and can reduce the passage of air, thereby avoiding acoustic short circuits.

Preferably, the first connection part is provided at the center of the diaphragm and has a first groove, the transmission member is a strip-shaped body, and one end side of the strip-shaped body is engaged with the first clamping part. inside the tank.

More preferably, the first connecting portion is integrally formed on the inner end surface of the diaphragm.

Preferably, the first connecting portion is arranged around the edge of the diaphragm and forms an annular groove, the transmission member is a strip body, and an annular clip is provided at one end of the strip body, and the annular clip is The strips fit into said annular groove.

Preferably, the second connecting part is a sheet-shaped body, the inner part of the sheet-shaped body is bonded to the voice coil, and the outer part is provided with a second groove, and the strip-shaped body is away from the first One end side of the connecting portion is clamped in the second groove.

Preferably, the magnet unit further includes:

Magnet, the magnet has an annular magnetic gap, and the voice coil is coaxially arranged in the annular magnetic gap;

A centering support piece, through which the voice coil is connected to the magnet;

Connector, the voice coil is electrically connected to the sound source through the connector.

Preferably, there is one diaphragm and n magnet units, where n is an integer greater than or equal to 2.

Preferably, there are n diaphragms and one magnet unit, and n is an integer greater than or equal to 2.

Preferably, there are n diaphragms, n-1 magnet units, and n is an integer greater than or equal to 2.

beneficial effects

The beneficial effects of this utility model are:

During assembly, the diaphragm is installed on the first assembly area of the panel, and the magnet unit is installed on the second assembly area of the panel, so that the diaphragm and the magnet unit are located on the same plane. Compared with the prior art, the vibrator is The assembly structure of the membrane and the magnet unit on the same axis becomes an assembly structure on the same plane, which reduces the number of parts stacked on the same axis, thereby reducing the thickness of the speaker.

The utility model also includes the following advantages:

(1) Compared with the existing technology, the basin frame in the support auxiliary system can be saved. On the one hand, the weight of the speaker can be reduced. On the other hand, when the speaker is installed in the speaker box, the requirement for the thickness of the inner cavity of the speaker box can be reduced, thereby increasing the To reduce the size of the speakers;

(2) The off-axis assembly structure can break through the restrictions on the installation positions of the diaphragm and magnet unit. On the one hand, by adding magnet units, multiple magnet units can act on the same diaphragm at the same time, thereby increasing the speaker's Power, on the other hand, can be increased by increasing the diaphragm, so that multiple diaphragms share a magnet unit at the same time, thereby expanding the range of sound dispersion, and a single magnet unit greatly reduces the production cost and component weight.

Description of the drawings

Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

Figure 2 is an exploded view of Embodiment 1 of the present invention;

Figure 3 is a schematic structural diagram of Embodiment 2 of the present utility model;

Figure 4 is an exploded view of Embodiment 2 of the present invention;

Figure 5 is a schematic longitudinal cross-sectional view of Embodiment 2 of the present utility model;

Figure 6 is a schematic structural diagram of Embodiment 3 of the present utility model;

Figure 7 is a schematic structural diagram of Embodiment 4 of the present utility model;

Figure 8 is a schematic structural diagram of Embodiment 5 of the present utility model;

Figure 9 is a schematic structural diagram of Embodiment 6 of the present utility model;

Figure 10 is a schematic structural diagram of Embodiment 7 of the present utility model;

Figure 11 is a schematic structural diagram of Embodiment 8 of the present utility model.

Shown in the picture: 1-panel, 11-sound hole;

2-diaphragm, 21-first connecting part, 22-ring;

3-magnet unit, 31-voice coil, 311-second connection part, 32-magnet, 33-centering support piece, 34-connector;

4-Transmission parts, 41-Ring clip;

5-elastic layer, 51-edging;

6-Rear side panels.

Best Mode of Carrying Out the Invention

The following describes the embodiments of the present invention in detail with reference to the accompanying drawings, which are for reference and illustration only and do not limit the scope of patent protection of the present utility model.

Example 1

Please refer to Figure 1 and Figure 2. In this embodiment, a speaker includes:

Panel 1. The panel 1 has a first assembly area and a second assembly area, and the first assembly area and the second assembly area are located on the same plane;

Diaphragm 2, the first assembly area is provided with a sound hole 11, the diaphragm 2 is arranged in the sound hole 11, and the inner end of the diaphragm 2 is provided with a first connecting portion 21;

Magnet unit 3, the magnet unit 3 is provided on the second assembly area, the magnet unit 3 has a voice coil 31, and the inner end of the voice coil 31 is provided with a second connecting portion 311; and

The transmission member 4 , the first connection part 21 and the second connection part 311 are respectively connected to the transmission member 4 .

Working principle of this embodiment:

When the positive half-wave of the audio signal is connected to the voice coil 31, the voice coil 31 deflects toward the inside of the panel 1, and drives the diaphragm 2 to deflect toward the inside of the panel 1 through the transmission member 4;

When the negative half-wave of the audio signal is connected to the voice coil 31 , the voice coil 31 deflects toward the outside of the panel 1 , and drives the diaphragm 2 to deflect toward the outside of the panel 1 through the transmission member 4 .

More preferably, the diaphragm 2 is made of a lightweight material with a certain hardness, such as honeycomb cardboard, glass fiber, carbon fiber, polycarbonate and very light metal (aluminum, titanium alloy).

More preferably, the panel 1 is made of rigid materials, such as plastic, light metal (aluminum), and wood, which have better support effects; further preferably, the rigid material is PVC plastic, which has excellent corrosion resistance and insulation. , and has certain mechanical strength.

More preferably, the transmission member 4 can be made of, but is not limited to, one of glass fiber, carbon fiber, plastic, wood or metal; further preferably, the transmission member 4 is made of titanium metal, which has strong anti-damping properties. After being subjected to mechanical vibration or electrical vibration, its own vibration attenuation time is longer, which is beneficial to reducing the loss of vibration transmission.

More preferably, the diaphragm 2 can be a cone diaphragm 2 or a planar diaphragm 2, in which the shape can be but is not limited to circular, rectangular, elliptical, etc. Please refer to the figure. In this embodiment, the diaphragm 2 is a cone-shaped diaphragm 2 with a circular shape.

In this embodiment, a folding ring 22 is provided on the edge of the diaphragm 2 , and the folding ring 22 is adapted to the sound hole 11 . The folding ring 22 is bonded to the edge of the sound hole 11 through glue.

In this embodiment, the first connecting part 21 is provided at the center of the diaphragm 2 and has a first groove. The transmission member 4 is a strip-shaped body, and one end side of the strip-shaped body is engaged with the in the first card slot.

More preferably, the first connecting portion 21 is integrally formed on the inner end surface of the diaphragm 2 . In this embodiment, the first groove is opened at the inner end of the conical diaphragm 2 .

Preferably, the second connecting part 311 is a sheet-shaped body, the inner part of the sheet-shaped body is bonded to the voice coil 31, and the outer part is provided with a second groove, and the strip-shaped body is away from the One end side of the first connecting portion 21 is engaged in the second groove. In this embodiment, the sheet-like body is bonded to the inner end of the voice coil 31 through glue. Preferably in this embodiment, after the strip body is engaged with the first groove and the second groove, the stability of the structure is further reinforced by dripping glue to avoid loosening during the transmission process.

Preferably, the magnet unit 3 also includes:

Magnet 32, the magnet 32 has an annular magnetic gap, and the voice coil 31 is coaxially arranged in the annular magnetic gap;

Centering support piece 33, the voice coil 31 is connected to the magnet 32 through the centering support piece 33;

Connector 34, the voice coil 31 is electrically connected to the sound source through the connector 34.

In this embodiment, the magnet 32 has an external mounting base, and the mounting base is connected to the panel 1 through screws.

Embodiments of the invention Example 2

The difference between this embodiment and Embodiment 1 is:

Please refer to Figures 3 to 5. This embodiment also includes:

Elastic layer 5 covers the outer surface of the panel 1 , and the outer end surface of the diaphragm 2 is in contact with the inner end surface of the elastic layer 5 .

More preferably, the elastic layer 5 can be, but is not limited to, canvas, elastic film, elastic fabric, etc.; further preferably, the elastic layer 5 is canvas, which has good air tightness and can reduce the passage of air, thereby avoiding acoustic short circuits. The elastic layer 5 covers the panel 1 and the diaphragm 2, and patterns can be drawn on the outer side of the canvas, thereby improving the viewing quality of the product.

In this embodiment, it is further preferred that the inner end surface of the elastic layer 5 and the outer end surface of the panel 1 are bonded with glue, so as to obtain good acoustic quality and avoid sound distortion;

The outer end surface of the diaphragm 2 is bonded to the inner end surface of the elastic layer 5 through glue. Working principle:

When the positive half-wave of the audio signal is connected to the voice coil 31, the voice coil 31 is deflected toward the inner side of the panel 1, and drives the diaphragm 2 to deflect toward the inner side of the panel 1 through the transmission member 4, and the diaphragm 2 is deflected toward the inner side of the panel 1. When the inside is deflected, the elastic layer 5 is simultaneously driven to deflect inward along the axis of the sound hole 11;

When the negative half-wave of the audio signal is connected to the voice coil 31, the voice coil 31 deflects toward the outside of the panel 1, and drives the diaphragm 2 to deflect toward the outside of the panel 1 through the transmission member 4, and the diaphragm 2 moves toward the outside of the panel 1. When the outside deflects, the elastic layer 5 is simultaneously driven to deflect outward along the axis of the sound hole 11 .

In this embodiment, a rear side plate 6 is also provided. The longitudinal section of the panel 1 is in the shape of "[". The rear side plate 6 is connected to the rear end surface of the panel 1 and forms a space for accommodating the magnet unit 3 and the transmission member 4. cavity, thereby changing the appearance of the speaker, and can form a small-thick, ornamental mural-style speaker that can be hung on the wall as a decoration; the edge of the elastic layer 5 is provided with an edge 51, and the edge 51 is in contact with the outer peripheral wall of the panel 1 Adhesion further improves the fixation stability of the elastic layer 5 .

The remaining content of this embodiment is the same as that of Embodiment 1, and will not be described again here.

Example 3

The difference between this embodiment and Embodiment 1 is:

Please refer to Figure 6. In this embodiment, the diaphragm 2 is a planar diaphragm 2 with a circular shape.

In this embodiment, the inner end of the planar diaphragm 2 is integrally formed with a columnar body, and the first groove is opened on the columnar body.

Example 4

The difference between this embodiment and Embodiment 1 is:

Please refer to Figure 7. Preferably, the first connecting portion 21 is arranged around the edge of the diaphragm 2 and forms an annular groove. The transmission member 4 is a strip-shaped body, and one end of the strip-shaped body is provided with Annular clamping strip 41 is adapted to the annular groove.

In this embodiment, the diaphragm 2 is made of a transparent or translucent material and can be used to transmit light. Specifically, a light source (LED lamp bead) can be added to the inner cavity of the speaker so that light can pass through the inner cavity of the diaphragm 2. The end surface is transmitted to the outer end surface of the diaphragm 2, and the transparent or translucent material can avoid forming a shadow on the outer end surface of the diaphragm 2.

Example 5

The difference between this embodiment and Embodiment 1 is:

Please refer to FIG. 8 . Preferably, there is one diaphragm 2 and n magnet units 3 , where n is an integer greater than or equal to 2.

In this embodiment, there is one diaphragm 2 and two magnet units 3. The panel 1 is provided with a first assembly area and two second assembly areas. The two second assembly areas are respectively located at On both sides of the first assembly area, the transmission member 4 is in a "-" shape. The two end sides of the transmission member 4 are respectively engaged with the second connecting part 311, and the middle part of the transmission member 4 is engaged with the first connecting part 21. This allows the two magnet units 3 to act on the same diaphragm 2 at the same time, thereby increasing the power of the speaker.

It should be noted that the two voice coils 31 are connected in the same phase to ensure the consistency of the direction of the audio current flowing through the speaker, thereby keeping the vibration direction of the diaphragm 2 consistent and preventing the energy of air vibration from being offset. They can be connected in series or in parallel. .

Example 6

The difference between this embodiment and Embodiment 1 is:

Please refer to FIG. 9 . Preferably, there are n diaphragms 2 and one magnet unit 3 , and n is an integer greater than or equal to 2.

In this embodiment, there are two diaphragms 2 and one magnet unit 3. The panel 1 is provided with two first assembly areas and one second assembly area. The two first assembly areas are respectively located at On both sides of the second assembly area, the transmission member 4 is in a "-" shape. The two end sides of the transmission member 4 are respectively engaged with the first connecting part 21, and the middle part of the transmission member 4 is engaged with the second connecting part 311. The two diaphragms 2 share one magnet unit 3 at the same time, thereby expanding the range of sound dispersion, and a single magnet unit 3 greatly reduces the production cost and component weight.

Example 7

The difference between this embodiment and Embodiment 6 is:

Please refer to Figure 10. There are four diaphragms 2 and one magnet unit 3. There are two first assembly areas and one second assembly area on the panel 1. The four first assembly areas are respectively located at At the four corners of the second assembly area, the transmission member 4 is in the shape of a "ten". The intersection of the center line of the transmission member 4 is connected to the second connection portion 311. The four corners of the transmission member 4 are respectively connected to the first connection portions of the four diaphragms 2. 21. And connect it to further expand the range of sound dispersion.

The remaining content of this embodiment is the same as that of Embodiment 6, and will not be described again here.

Example 8

The difference between this embodiment and Embodiment 1 is:

Please refer to Figure 11. Preferably, there are n diaphragms 2 and n-1 magnet units 3, where n is an integer greater than or equal to 2.

In this embodiment, there are three diaphragms 2 and two magnet units 3. The panel 1 is provided with three first assembly areas and two second assembly areas. Among them, one of the adjacent first assembly areas There is a second assembly area between the transmission parts 4. The transmission part 4 is in the shape of a "-". The transmission part 4 is provided with a total of five connection points. The five connection points respectively correspond to the first connection part 21 and the second connection and are snap-connected. , so that the two magnet units 3 can act on the same three diaphragms 2 at the same time, further increasing the power of the speaker.

The above disclosures are only preferred embodiments of the present utility model and cannot be used to limit the scope of protection of the present utility model. Therefore, equivalent changes made within the scope of the patent application for the present utility model are still covered by the present utility model. range.

Claims

A loudspeaker, characterized by including:

A panel, the panel has a first assembly area and a second assembly area, the first assembly area and the second assembly area are located on the same plane;

Diaphragm, the first assembly area is provided with a sound hole, the diaphragm is arranged in the sound hole, and the inner end of the diaphragm is provided with a first connecting portion;

a magnet unit, the magnet unit is disposed on the second assembly area, the magnet unit has a voice coil, and the inner end of the voice coil is provided with a second connection part; and

Transmission member, the first connection part and the second connection part are respectively connected with the transmission member.
The speaker according to claim 1, wherein the edge of the diaphragm is provided with a folding ring, and the folding ring is adapted to the sound outlet.
A speaker according to claim 1, further comprising:

An elastic layer covers the outer surface of the panel, and the outer end surface of the diaphragm is in contact with the inner end surface of the elastic layer.
A speaker according to claim 1, characterized in that the first connection part is provided at the center of the diaphragm and has a first groove, the transmission member is a strip-shaped body, and the strip-shaped body One end of the side portion is engaged in the first slot.
A speaker according to claim 1, characterized in that the first connecting part is arranged around the edge of the diaphragm and forms an annular groove, the transmission member is a strip-shaped body, and the strip-shaped body One end is provided with an annular clip, and the annular clip is adapted to the annular groove.
A speaker according to claim 4 or 5, characterized in that the second connecting part is a sheet-like body, the inner part of the sheet-like body is bonded to the voice coil, and the outer part is open There is a second groove, and the side of the strip-shaped body away from the first connecting part is engaged in the second groove.
A speaker according to claim 1, characterized in that the magnet unit further includes:

A magnet, the magnet has an annular magnetic gap, and the voice coil is coaxially arranged in the annular magnetic gap;

A centering support piece, through which the voice coil is connected to the magnet;

Connector, the voice coil is electrically connected to the sound source through the connector.
The speaker according to claim 1, wherein there is one diaphragm and n magnet units, where n is an integer greater than or equal to 2.
The speaker according to claim 1, wherein there are n diaphragms and one magnet unit, and n is an integer greater than or equal to 2.
The speaker according to claim 1, wherein there are n number of said diaphragms, n-1 number of said magnet units, and n is an integer greater than or equal to 2.