CN102761811A - Sandwich type two-way radiating loudspeaker and its magnetic return device - Google Patents

Abstract

A sandwich-type bidirectional radiation speaker and its magnetic return device are disclosed. The invention relates to a sandwich-type bidirectional radiation type loudspeaker, which comprises an upper magnetic conduction washer unit, a lower magnetic conduction washer unit, a magnet unit, a voice coil bracket, an upper vibration unit, a lower vibration unit, a first coil and a second coil. The magnet unit is clamped between the upper magnetic-conduction washer unit and the lower magnetic-conduction washer unit. The voice coil support penetrates through the upper magnetic conduction washer unit, the lower magnetic conduction washer unit and the magnet unit and is provided with a first end and a second end. The upper vibration unit is arranged at the first end of the voice coil support, and the lower vibration unit is arranged at the second end of the voice coil support. The first coil is wound on the voice coil support and corresponds to the upper magnetic conduction washer unit, and the second coil is wound on the voice coil support and corresponds to the lower magnetic conduction washer unit. The invention adopts a symmetrical structure, and forms bidirectional radiation when feeding audio signals of the loudspeaker; two magnetic circuits are adopted for driving in the same direction, so that the amplitude of the loudspeaker is greatly improved, and the low-frequency effect is more favorably generated.

Description

Sandwich type two-way radiating loudspeaker and its magnetic return device

technical field

The present invention relates to a sandwich type two-way radiation loudspeaker and its magnetic return device, in particular to a sandwich type two-way radiation type loudspeaker which produces two sound sources at the same point and its magnetic return device.

Background technique

Please refer to FIG. 1 , which shows a conventional woofer speaker 9 . This existing woofer 9 comprises a T iron 91, a permanent magnet 92, a magnetic washer (its effect is magnetic conduction, so it is also called a magnetic conduction plate) 93, a support 94, a voice coil 95, an elastic wave 96, a vibrating plate 97 and a dustproof cap 98. The permanent magnet 92 not only provides the required magnetic field for driving the voice coil 95 , but also forms a driving assembly together with the magnetic washer 93 and the voice coil 95 . The drive assembly converts electrical energy into mechanical energy, which is used to push air to generate radiated sound waves.

However, this existing woofer 9 is limited by the limited magnetic energy of the permanent magnet 92, so it cannot obtain a larger sound wave vibration, and the sound wave radiated by it has a larger distortion, so that the existing woofer 9 cannot produce a sound with good sound quality. low frequency sound waves.

Contents of the invention

In order to overcome the above problems, the present invention proposes a sandwich-type two-way radiating loudspeaker.

The present invention provides a sandwich-type two-way radiating loudspeaker, which mainly produces two sound sources at the same point to increase its sound wave vibration, which is the purpose of the invention.

The present invention also provides a magnetic return device for a sandwich-type two-way radiation speaker, which mainly generates a two-way magnetic field to drive the upper vibrating unit and the lower vibrating unit, thereby bidirectionally radiating sound waves.

In order to achieve the aforementioned object of the invention, the technical means used in the present invention and the effects that can be achieved by means of the technical means include:

A sandwich type two-way radiating loudspeaker, comprising an upper magnetic conduction washer unit, a lower magnetic conduction washer unit, a magnet unit, a voice coil support, an upper vibration unit, a lower vibration unit, and a first coil and a second coil. The magnet unit is interposed between the upper magnetically conductive Wasser unit and the lower magnetically conductive Wasser unit. The voice coil support passes through the upper magnetically conductive Wasser unit, the lower magnetically conductive Wasser unit and the magnet unit, and has a first end and a second end. The upper vibration unit is arranged at the first end of the voice coil support, and the lower vibration unit is arranged at the second end of the voice coil support. The first coil is wound on the voice coil support corresponding to the upper magnetic washer unit, and the second coil is wound on the voice coil support corresponding to the lower magnetic washer unit.

A magnetic return device for a sandwich-type two-way radiating loudspeaker, comprising an upper magnetic conduction washer unit, a lower magnetic conduction washer unit, a magnet unit, a voice coil support, a first coil and a second coil. The magnet unit is interposed between the upper magnetically conductive Wasser unit and the lower magnetically conductive Wasser unit. The voice coil support passes through the upper magnetically conductive Wasser unit, the lower magnetically conductive Wasser unit and the magnet unit. The first coil is wound on the voice coil support corresponding to the upper magnetic washer unit, and the second coil is wound on the voice coil support corresponding to the lower magnetic washer unit.

The loudspeaker of the invention adopts a symmetrical structure, and can form two-way radiation when feeding audio signals to the loudspeaker. The loudspeaker of the invention adopts two magnetic circuits driven in the same direction, so the amplitude of the loudspeaker can be greatly improved, and the low-frequency effect is more conducive to generation. The loudspeaker of the present invention adopts a vibration system with double suspension sides, so that the balance of vibration can be better, and it is more conducive to producing good sound quality.

Description of drawings

Figure 1: Schematic of an existing woofer.

Fig. 2: A schematic diagram of a sandwich-type two-way radiating loudspeaker according to a preferred embodiment of the present invention.

Fig. 3: A schematic diagram of a magnetic return device according to a preferred embodiment of the present invention.

in:

Detailed ways

In order to make the above-mentioned and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are specifically cited below, together with the accompanying drawings, as follows:

Please refer to FIG. 2 , which shows a sandwich-type two-way radiating speaker 1 according to a preferred embodiment of the present invention. The sandwich-type two-way radiation speaker 1 includes an upper bracket 11a, a lower bracket 11b, an upper coupling column 12a, a lower coupling column 12b, an upper support portion 13a, a lower support portion 13b, a positive terminal 14a, a negative terminal 14b, A voice coil support 15, a magnet unit 16, an upper magnetic washer unit 17a, a lower magnetic washer unit 17b, an upper vibration unit 18a, a lower vibration unit 18b, a first coil 19a and a second coil 19b . Wherein, as shown in FIG. 3 , the voice coil support 15 , the magnet unit 16 , the upper magnetic washer unit 17 a , the lower magnetic washer unit 17 b , the first coil 19 a and the second coil 19 b together form a magnetic return device.

Both the upper bracket 11a and the lower bracket 11b are bowl-shaped brackets formed by eight ribs, and sound waves can be radiated from the space between the ribs. The magnet unit 16 is interposed between the upper magnetically conductive Wasser unit 17a and the lower magnetically conductive Wasser unit 17b. The voice coil support 15 passes through the upper magnetically conductive Wasser unit 17 a , the lower magnetically conductive Wasser unit 17 b and the magnet unit 16 , and has a first end 151 and a second end 152 . The upper vibration unit 18 a is disposed on the first end 151 of the voice coil support 15 , and the lower vibration unit 18 b is disposed on the second end 152 of the voice coil support 15 . The first coil 19a is wound on the voice coil support 15 corresponding to the upper magnetically conductive Wasser unit 17a, and the second coil 19b is wound on the voice coil support 15 corresponding to the lower magnetically conductive Waster unit 17b. In the above structure, both the upper vibrating unit 18 a and the lower vibrating unit 18 b can be in the form of a single hanging edge. In addition, the magnetic return device of the present invention can generate a bidirectional magnetic field to push the upper vibrating unit 18a and the lower vibrating unit 18b so as to radiate sound waves bidirectionally.

In another embodiment of the present invention, the sandwich-type two-way radiating loudspeaker of the present invention may have a structure of double suspension sides. In the double suspension structure, the magnet unit 16 includes an outer magnet 161 and an inner magnet 162 . The upper magnetic washer unit 17a includes an upper outer magnetic washer 171a and an upper inner magnetic washer 172a, and the lower magnetic washer unit 17b includes a lower outer magnetic washer 171b and a lower inner magnetic washer 172b . The upper vibrating unit 18a includes an upper vibrating plate 181a, an upper inner hanging edge 182a and an upper outer hanging edge 183a, and the lower vibrating unit 18b includes a lower vibrating plate 181b, a lower inner hanging edge 182b and a lower outer hanging edge 183b.

The upper bracket 11a is connected to the upper end of the upper coupling post 12a by glue. The upper coupling post 12a is connected to the lower coupling post 12b by glue. The upper coupling column 12a and the lower coupling column 12b are connected at A and B by glue. The voice coil support 15 is connected between the upper vibrating plate 181 a and the lower vibrating plate 181 b through glue, and is arranged in the magnetic gap formed between the inner magnet 162 and the outer magnet 161 . The outer magnet 161 is sandwiched between the upper outer magnetic washer 171a and the lower outer magnetic washer 171b, and is connected with the upper outer magnetic washer 171a, the lower outer magnetic washer 171b, the upper outer hanging edge 183a and the lower outer magnet. The hanging edge 183b is jointly disposed on one side of the voice coil support 15 . The inner magnet 162 is sandwiched between the upper inner magnetic washer 172a and the lower inner magnetic washer 172b, and is connected with the upper inner magnetic washer 172a, the lower inner magnetic washer 172b, the upper inner hanging edge 182a and the lower inner magnet. The hanging edge 182b is jointly disposed on the other side of the voice coil support 15 . The upper inner magnetic conduction washer 172a, the inner magnet 162 and the lower inner magnetic conduction washer 172b are connected to the upper support part 13a and the lower support part 13b by glue. The upper outer magnetic conducting washer 171a, the outer magnet 161 and the lower outer magnetic conducting washer 171b are connected to the upper coupling post 12a and the lower coupling post 12b by glue. The upper vibrating plate 181a is connected to the first end 151 of the voice coil support 15 and is disposed on the upper support 11a. The inner edge of the upper vibrating plate 181a is connected to the upper supporting part 13a through the upper inner hanging edge 182a, and the outer edge is connected to the upper bracket 11a through the upper outer hanging edge 183a. The lower vibrating plate 181b is connected to the second end 152 of the voice coil support 15 and is disposed on the lower support 11b. The inner edge of the lower vibrating plate 181b is connected to the lower supporting part 13b through the lower inner hanging edge 182b, and the outer edge is connected to the lower bracket 11b through the lower outer hanging edge 183b. Thereby, the sandwich type two-way radiation speaker of the present invention can be formed.

Since the sandwich-type two-way radiation speaker of the present invention adopts a symmetrical structure, the speaker can form two-way radiation when feeding audio signals to the speaker. In addition, since the loudspeaker of the present invention is driven in the same direction by two magnetic circuits, the amplitude of the loudspeaker can be greatly increased, which is more conducive to the generation of low-frequency effects. In addition, the present invention can adopt a vibration system with double suspension sides, so that the balance of vibration can be better, and it is more conducive to producing good sound quality.

But the above is only a preferred embodiment of the present invention, and should not limit the implementation scope of the present invention; therefore, all simple equivalent changes and modifications made according to the patent scope of the present invention and the contents of the creation instructions, All should still belong to the scope that the patent of the present invention covers.

Claims (4)

1. A sandwich-type two-way radiating loudspeaker, characterized in that it comprises: One upper magnetic washer unit; A lower magnetic washer unit; a magnet unit interposed between the upper magnetically conductive Wasser unit and the lower magnetically conductive Wasser unit; A voice coil support, passing through the upper magnetically conductive Wasser unit, the lower magnetically conductive Wasser unit and the magnet unit, and having a first end and a second end; An upper vibration unit is arranged at the first end of the voice coil support; A lower vibration unit is arranged at the second end of the voice coil support; a first coil wound on the voice coil support corresponding to the upper magnetic washer unit; and A second coil is wound around the voice coil support and corresponds to the lower magnetic conduction washer unit. 2. The two-way radiating loudspeaker of sandwich type according to claim 1, characterized in that: The upper vibrating unit includes an upper vibrating plate, an upper inner hanging edge and an upper outer hanging edge, and the upper vibrating plate is connected to the first end of the voice coil support; The lower vibration unit includes a lower vibration plate, a lower inner hanging edge and a lower outer hanging edge, and the lower vibration plate is connected to the second end of the voice coil support; The upper magnetic washer unit includes an upper outer magnetic washer and an upper inner magnetic washer; The lower magnetic washer unit includes a lower outer magnetic washer and a lower inner magnetic washer; The magnet unit includes an outer magnet and an inner magnet; the inner magnet is sandwiched between the upper inner magnetic washer and the lower inner magnetic washer, and is connected with the upper inner magnetic washer, the lower inner guide The magnetic washer, the upper inner hanging edge and the lower inner hanging edge are jointly arranged on one side of the voice coil support; the outer magnet is sandwiched between the upper outer magnetic conducting washer and the lower outer magnetic conducting washer, It is also arranged on the other side of the voice coil support together with the upper outer magnetic washer, the lower outer magnetic washer, the upper outer suspension edge and the lower outer suspension edge. 3 . The sandwich-type two-way radiating speaker according to claim 1 , wherein both the upper vibrating unit and the lower vibrating unit are single hanging sides. 4 . 4. A magnetic return device of a sandwich type two-way radiating loudspeaker, characterized in that it comprises: One upper magnetic washer unit; A lower magnetic washer unit; a magnet unit interposed between the upper magnetically conductive Wasser unit and the lower magnetically conductive Wasser unit; A voice coil support, passing through the upper magnetically conductive Wasser unit, the lower magnetically conductive Wasser unit and the magnet unit; a first coil wound on the voice coil support corresponding to the upper magnetic washer unit; and A second coil is wound around the voice coil support and corresponds to the lower magnetic conduction washer unit.

Images