Coaxial loudspeaker and earphone

Abstract

The utility model discloses a coaxial loudspeaker and an earphone. The coaxial loudspeaker comprises a first vibrating diaphragm, a first voice coil, a first support, a second vibrating diaphragm, a second voice coil, a second support, a magnetic assembly and a sound guide member. An accommodating space is formed between the first bracket and the second bracket; the first vibrating diaphragm and the second vibrating diaphragm are respectively mounted on the first bracket and the second bracket; the magnetic assembly is arranged in the containing space, a first gap is formed between the magnetic assembly and the second support, a second gap is formed in the magnetic assembly, one end of the first voice coil is connected to the first vibrating diaphragm, and the other end of the first voice coil is located in the first gap; one end of the second voice coil is connected to the second diaphragm, and the other end is located in the second gap; the sound guide piece is arranged on the magnetic assembly and penetrates through the first vibrating diaphragm, the magnetic assembly is provided with a first channel, and the sound guide piece is communicated with the first channel to form a sound outlet channel. Phase interference between the first vibrating diaphragm and the second vibrating diaphragm can be reduced, the sound production effect of the loudspeaker is improved, and the sound quality effect of the earphone is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to loudspeaker technical field, especially a kind of coaxial loudspeaker and earphone. BACKGROUND

[0002] With the continuous development of electronic technology, users' requirements on the sound quality of earphones are also getting higher and higher. In the constituent components of earphones, the sound production effect of loudspeakers will directly affect the sound quality effect of the output of earphones, and the structural arrangement of loudspeakers will directly affect the sound production effect of loudspeakers. In the existing loudspeaker structure, in order to improve the sound production effect of loudspeakers, a double-output unit is usually used, but this method still has the problems of poor space isolation effect of the double-output unit and phase interference between the double-output units, which will affect the sound production effect of the loudspeaker and further affect the sound quality of the earphone.

[0003] Therefore, it is necessary to provide a coaxial loudspeaker and earphone to solve the above problems. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a coaxial loudspeaker and earphone, which can effectively solve the problem of phase interference between different diaphragms, thereby improving the sound production effect of the loudspeaker and improving the sound quality of the earphone.

[0005] To achieve the above-mentioned purpose, the first aspect of the utility model provides a coaxial loudspeaker, which comprises a first diaphragm, a first voice coil, a first support, a second diaphragm, a second voice coil, a second support, a magnetic assembly and a sound guide; the first support and the second support are mutually embedded to form a containing space; the first diaphragm and the second diaphragm are respectively installed on the first support and the second support; the magnetic assembly is arranged in the containing space, a first gap is formed between the magnetic assembly and the second support, a second gap is formed inside the magnetic assembly, one end of the first voice coil is connected to the first diaphragm, the other end of the first voice coil is located in the first gap, one end of the second voice coil is connected to the second diaphragm, and the other end of the second voice coil is located in the second gap; the sound guide is arranged on the magnetic assembly and penetrates through the first diaphragm; a first channel is formed on the magnetic assembly, and the sound guide communicates with the first channel to form an sound outlet channel.

[0006] In a preferred embodiment, the magnetic assembly comprises a hollow magnetic body and a magnetic conductor arranged on the magnetic body; the first gap is formed between the magnetic body and the second support, and the second gap is formed between the magnetic body and the magnetic conductor.

[0007] In a preferred embodiment, the first support comprises an embedded main body and an electrical connection part arranged on one side of the embedded main body; one end of the embedded main body is formed with a mounting boss, and the other end of the embedded main body is formed with an embedded boss.

[0008] In a preferred embodiment, the side of the chimeric main body is formed with a first tuning portion.

[0009] In a preferred embodiment, the electrical connection portion is provided with an electrical connection piece.

[0010] In a preferred embodiment, the electrical connection piece is provided with at least one set of solder pads.

[0011] In a preferred embodiment, the second support includes a containing main body with a cavity formed therein, and the containing main body is provided with a mounting slot for mounting the second diaphragm.

[0012] In a preferred embodiment, the containing main body is provided with a communication slot for communicating the mounting slot and the first support.

[0013] In a preferred embodiment, the containing main body is provided with a second tuning portion.

[0014] The second aspect of the utility model provides a kind of earphone, it includes coaxial loudspeaker in any implementation of the above.

[0015] The utility model has the advantages that: it is provided with first passage on magnetic assembly, and the sound guide piece that passes through first diaphragm is arranged on magnetic assembly, can effectively support first diaphragm, adjust bass cavity, utilize the sound outlet passage formed by the communication of sound guide piece and first passage, can effectively adjust the performance of second diaphragm, adjust treble cutoff frequency, can effectively separate first diaphragm and second diaphragm, reduce the phase interference between first diaphragm and second diaphragm, to further improve the sound effect of loudspeaker. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides the structure's section view schematic diagram of coaxial loudspeaker;

[0017] Figure 2 The utility model provides the structure schematic diagram of coaxial loudspeaker;

[0018] Figure 3 The first structure schematic diagram of first support of coaxial loudspeaker is provided for the utility model;

[0019] Figure 4 The second structure schematic diagram of first support of coaxial loudspeaker is provided for the utility model;

[0020] Figure 5 The structure schematic diagram of second support of coaxial loudspeaker is provided for the utility model. DETAILED DESCRIPTION

[0021] In the utility model, the terms "arrange", "have" and "connect" should be understood in a broad sense. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] The terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one feature. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0023] In addition, in addition to being used to represent the orientation or positional relationship, the above-mentioned part of the term can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] The following is the content of the first aspect of the utility model:

[0026] Please refer to Figure 1 In the embodiment, the coaxial loudspeaker includes a first diaphragm 1, a first voice coil 2, a first support 3, a second diaphragm 4, a second voice coil 5, a second support 6, a magnetic assembly 7 and a sound guide 8.

[0027] Among them, the first diaphragm 1 is the bass diaphragm of the loudspeaker, and the second diaphragm 4 is the treble diaphragm of the loudspeaker. The sound guide 8 is used to conduct the sound wave generated by the second diaphragm 4.

[0028] Specifically, the first support 3 and the second support 6 are embedded with each other to form a containing space; the first diaphragm 1 and the second diaphragm 4 are respectively installed on the first support 3 and the second support 6; the magnetic assembly 7 is arranged in the containing space, a first gap 9 is formed between the magnetic assembly 7 and the first support 3, a second gap 10 is formed in the magnetic assembly 7, one end of the first voice coil 2 is connected to the first diaphragm 1, the other end of the first voice coil 2 is located in the first gap 9, one end of the second voice coil 5 is connected to the second diaphragm 4, the other end of the second voice coil 5 is located in the second gap 10; the sound guide 8 is arranged on the magnetic assembly 7 and penetrates the first diaphragm 1, a first channel 73 is arranged on the magnetic assembly 7, and the sound guide 8 communicates with the first channel 73 to form a sound outlet channel.

[0029] During the operation of the loudspeaker, the control current flows through the first voice coil 2 and the second voice coil 5 respectively, and the first voice coil 2 and the second voice coil 5 generate magnetic fields with corresponding intensities according to the control current flowing in. Under the interaction of the magnetic fields of the magnetic assembly 7, the first voice coil 2 located in the first gap 9 and the second voice coil 5 located in the second gap 10 generate corresponding movements respectively, and then push the first diaphragm 1 and the second diaphragm 4 respectively to generate corresponding bass sound waves and treble sound waves.

[0030] During the vibration of the first diaphragm 1 and the second diaphragm 4, the sound guide 8 can effectively support the first diaphragm 1 to adjust the position of the first diaphragm 1, and the treble sound waves generated by the second diaphragm 4 can be effectively output through the sound outlet channel formed by the sound guide 8 and the first channel 73.

[0031] It can be understood that by arranging the first channel 73 on the magnetic assembly 7 and the sound guide 8 penetrating the first diaphragm 1 on the magnetic assembly 7, the first diaphragm 1 can be effectively supported to adjust the bass cavity and improve the bass performance, the performance of the second diaphragm 4 can be effectively adjusted by using the sound outlet channel formed by the communication of the sound guide 8 and the first channel 73 to adjust the treble cut-off frequency, the first diaphragm 1 and the second diaphragm 4 can be effectively separated to reduce the phase interference between the first diaphragm 1 and the second diaphragm 4, and then the sound effect of the loudspeaker is improved.

[0032] Further, please refer to Figure 1 In an embodiment, the magnetic assembly 7 includes a hollow magnetic body 71 and a magnetic conductor 72 arranged on the magnetic body 71; the first gap 9 is formed between the magnetic body 71 and the second support 6, and the second gap 10 is formed between the magnetic body 71 and the magnetic conductor 72.

[0033] The magnetic body 71 is used to provide a magnetic field in the loudspeaker to interact with the first voice coil 2 and the second voice coil 5; the magnetic conductor 72 is used to conduct the magnetism of the magnetic body 71.

[0034] Specifically, the middle part of the magnetic body 71 is provided with a through slot, and the magnetic conductor 72 is in the shape of a boss. The magnetic body 71 is arranged on the second support 6, and a first gap 9 is formed between the outer surface of the magnetic body 71 and the second support 6. The second magnetic conductor 72 is arranged on the magnetic body 71, and the boss part of the magnetic conductor 72 is located in the through slot of the magnetic body 71. The boss part of the magnetic conductor 72 and the side wall of the through slot of the magnetic body 71 form a second gap 10.

[0035] It can be understood that, by setting the components and structure of the magnetic assembly 7, the movement gaps of the first voice coil 2 and the second voice coil 5 can be formed by one magnetic assembly 7 respectively. The number of magnetic assemblies 7 can be effectively reduced, the space occupied by the stacking of the magnetic assemblies 7 can be reduced, and thus the volume of the loudspeaker can be effectively reduced, and the production cost of the loudspeaker can be reduced.

[0036] Further, please refer to Figure 3 and Figure 4 In one embodiment, the first support 3 includes a fitting body 31 and an electrical connection part 32 arranged on one side of the fitting body 31. One end of the fitting body 31 is formed with a mounting boss 311, and the other end of the fitting body 31 is formed with a fitting boss 312.

[0037] The fitting body 31 is the main part when the first support 3 and the second support 6 are fitted with each other, and the electrical connection part 32 is the combined part for the electrical connection of the first voice coil 2 and the second voice coil 5 with the outside world. The mounting boss 311 is the mounting part for the first diaphragm 1 arranged on the first support 3, and the fitting boss 312 is the limiting part for the mutual fitting of the first support 3 and the second support 6.

[0038] In a preferred embodiment, the first diaphragm 1 is bonded to the mounting boss 311. After the first support 3 and the second support 6 are fitted with each other, the fitting boss 312 and the second support 6 can also be bonded to further improve the stability of the fitting.

[0039] Further, please refer to Figure 3 In one embodiment, the side surface of the fitting body 31 is formed with a first tuning part 313. Specifically, the first tuning part 313 is a tuning through slot, and a tuning gauze is bonded on the tuning through slot. It can be understood that, by setting the first tuning part 313, the pressure between the earphone front cavity of the loudspeaker and the outside world can be effectively balanced.

[0040] Further, please refer to Figure 2 In one embodiment, the electrical connection part 32 is provided with an electrical connection part 321.

[0041] The electric connecting member 321 can be an FPC member or a PCB member. Specifically, the electric connecting member 321 is provided with a low-frequency soldering sheet and a high-frequency soldering sheet for connecting the first voice coil 2 and the second voice coil 5 respectively. It can be understood that by adding the electric connecting member 321 to the electric connecting part 32, the physical frequency division of the high and low frequencies can be realized without increasing the overall height of the loudspeaker.

[0042] Further, please refer to Figure 2 In a preferred embodiment, the electric connecting member 321 is provided with at least one group of soldering pads 322.

[0043] The soldering pads 322 can serve as the connection end points of the first voice coil 2 and / or the second voice coil 5 to the outside world. Specifically, the electric connecting member 321 can be provided with a group of low-frequency soldering sheets for connecting the first voice coil 2 and a group of soldering pads 322 for connecting the second voice coil 5; or a group of soldering pads 322 for connecting the first voice coil 2 and a group of high-frequency soldering sheets for connecting the second voice coil 5; or two groups of soldering pads 322 for connecting the first voice coil 2 and the second voice coil 5 respectively, which can be selected according to the actual design requirements. Preferably, the two groups of soldering pads 322 for connecting the first voice coil 2 and the second voice coil 5 respectively are adopted.

[0044] It can be understood that by providing at least one group of soldering pads 322 on the electric connecting member 321, the physical frequency division of the high and low frequencies can be realized while saving at least one group of soldering sheets, which can effectively reduce the cost of the loudspeaker.

[0045] Further, please refer to Figure 5 In an embodiment, the second support 6 includes a containing body 61 with a cavity formed therein, and the containing body 61 is provided with a mounting groove 62 for mounting the second diaphragm 4.

[0046] The cavity of the containing body 61 is used for mounting the magnetic assembly 7, specifically, the magnetic assembly 7 is bonded in the cavity of the containing body 61, and the second diaphragm 4 is bonded on the mounting groove 62.

[0047] Further, please refer to Figure 5 In a preferred embodiment, the containing body 61 is provided with a communication groove 63 for communicating the mounting groove 62 and the first support 3. The containing body 61 is provided with a second tuning part 64.

[0048] The communication groove 63 serves as a channel for electrically connecting the second voice coil 5 to the electric connecting part 32. Specifically, the communication groove 63 can be a rectangular groove or an arc-shaped groove, which can be selected according to the actual design requirements. The second tuning part 64 is a tuning through groove, and the second tuning part 64 is provided with a tuning gauze.

[0049] It can be understood that by setting the communication groove 63, the second voice coil 5 can be electrically connected to the electrical connection part 32 on the first support 3 through the connecting groove, the welding problem of the second voice coil 5 can be effectively solved, the first voice coil 2 and the second voice coil 5 can share the same magnetic circuit system, and then the cost and manufacturing difficulty of the loudspeaker can be reduced, and the thickness of the loudspeaker can be reduced.

[0050] In conclusion, the utility model discloses a first channel 73 is set up on the magnetic assembly 7, and the sound guide piece 8 is set up on the magnetic assembly 7 and penetrates the first diaphragm 1, so that the first diaphragm 1 can be effectively supported to adjust the bass cavity, the sound guide piece 8 and the first channel 73 are communicated to form the sound outlet channel, the performance of the second diaphragm 4 can be effectively adjusted, the treble cut-off frequency can be adjusted, the first diaphragm 1 and the second diaphragm 4 can be effectively separated, the phase interference between the first diaphragm 1 and the second diaphragm 4 can be reduced, and the sound production effect of the loudspeaker can be improved.

[0051] The second aspect of the utility model further provides an earphone, which comprises the coaxial loudspeaker in the foregoing embodiments, and the coaxial loudspeaker can effectively reduce the size of the earphone and improve the sound quality of the earphone.

[0052] The above is only the specific embodiment of the application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the application.

Claims

1. A coaxial loudspeaker, characterized by The coaxial loudspeaker comprises a first diaphragm, a first voice coil, a first support, a second diaphragm, a second voice coil, a second support, a magnetic assembly and a sound guide; the first support and the second support are embedded with each other to form a containing space; the first diaphragm and the second diaphragm are respectively installed on the first support and the second support; the magnetic assembly is arranged in the containing space, a first gap is formed between the magnetic assembly and the second support, a second gap is formed inside the magnetic assembly, one end of the first voice coil is connected to the first diaphragm, the other end of the first voice coil is located in the first gap, one end of the second voice coil is connected to the second diaphragm, and the other end of the second voice coil is located in the second gap; the sound guide is arranged on the magnetic assembly and penetrates through the first diaphragm, a first channel is formed on the magnetic assembly, and the sound guide communicates with the first channel to form a sound outlet channel.

2. The coaxial loudspeaker of claim 1, wherein, The magnetic assembly comprises a hollow magnetic body and a magnetic conductor arranged on the magnetic body; the first gap is formed between the magnetic body and the second support, and the second gap is formed between the magnetic body and the magnetic conductor.

3. The coaxial loudspeaker of claim 1, wherein, The first support comprises an embedded main body and an electrical connection part arranged on one side of the embedded main body; one end of the embedded main body is formed with a mounting boss, and the other end of the embedded main body is formed with an embedded boss.

4. The coaxial loudspeaker of claim 3, wherein, A first tuning part is formed on the side surface of the embedded main body.

5. The coaxial loudspeaker of claim 3, wherein, An electrical connection part is arranged on the electrical connection part.

6. The coaxial loudspeaker of claim 5, wherein, At least one group of solder pads is arranged on the electrical connection part.

7. The coaxial loudspeaker of claim 1, wherein, The second support comprises a containing main body with a cavity formed inside, and the containing main body is formed with a mounting groove for mounting the second diaphragm.

8. The coaxial loudspeaker of claim 7, wherein, The containing main body is formed with a communication groove for communicating the mounting groove and the first support.

9. The coaxial loudspeaker of claim 7, wherein, A second tuning part is arranged on the containing main body.

10. An earphone, characterized by The coaxial loudspeaker comprises any one of the preceding claims 1 to 9.

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