Coaxial loudspeaker and earphone

Abstract

The invention discloses a coaxial loudspeaker and an earphone. The coaxial loudspeaker comprises a first vibrating diaphragm, a first voice coil, a first bracket, a second vibrating diaphragm, a second voice coil, a second bracket, a magnetic component and a sound guide piece, 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. Compared with the prior art, 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 present invention relates to the technical field of loudspeakers, and in particular to a coaxial loudspeaker and an earphone. Background Art

[0002] With the continuous development of electronic technology, users have higher and higher requirements for the sound quality of headphones. Among the components of headphones, the sound effect of the speaker will directly affect the sound quality of the output of the headphones, and the structural setting of the speaker will directly affect the sound effect of the speaker. In the existing speaker structure, in order to improve the sound effect of the speaker, a dual output unit is usually used, but this method still has the problem of poor spatial isolation of the dual output units and phase interference between the dual output units, which will affect the sound effect of the speaker and further affect the output sound quality of the headphones.

[0003] In view of this, it is necessary to provide a coaxial speaker and earphone to solve the above problems. Summary of the invention

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

[0005] To achieve the above-mentioned objectives, a first aspect of the present invention provides a coaxial loudspeaker, which includes a first diaphragm, a first voice coil, a first bracket, a second diaphragm, a second voice coil, a second bracket, a magnetic component and a sound guide; the first bracket and the second bracket are interlocked to form a accommodating space; the first diaphragm and the second diaphragm are respectively installed on the first bracket and the second bracket; the magnetic component is arranged in the accommodating space, a first gap is formed between the magnetic component and the second bracket, a second gap is formed inside the magnetic component, one end of the first voice coil is connected to the first 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 of the second voice coil is located in the second gap; the sound guide is arranged on the magnetic component and passes through the first diaphragm, a first channel is opened on the magnetic component, and the sound guide is connected to the first channel to form a sound output channel.

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

[0007] In a preferred embodiment, the first bracket includes a fitting body and an electrical connection portion arranged on one side of the fitting body; a mounting boss is formed at one end of the fitting body, and a fitting boss is formed at the other end of the fitting body.

[0008] In a preferred embodiment, a first tuning portion is formed on a side surface of the engaging body.

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

[0010] In a preferred embodiment, at least one group of pads is provided on the electrical connector.

[0011] In a preferred embodiment, the second bracket includes a receiving body with a cavity formed therein, and a mounting groove for mounting the second diaphragm is formed on the receiving body.

[0012] In a preferred embodiment, a connecting groove connecting the mounting groove and the first bracket is formed on the accommodating body.

[0013] In a preferred embodiment, a second tuning part is provided on the accommodating body.

[0014] A second aspect of the present invention provides an earphone, comprising the coaxial speaker in any one of the above embodiments.

[0015] The beneficial effects of the present invention are as follows: by opening a first channel on the magnetic component and arranging a sound guide member that passes through the first diaphragm on the magnetic component, it is possible to effectively support the first diaphragm to adjust the bass cavity, and by utilizing the sound output channel formed by the connection between the sound guide member and the first channel, it is possible to effectively adjust the performance of the second diaphragm and adjust the treble cutoff frequency, thereby effectively separating the first diaphragm and the second diaphragm, reducing the phase interference between the first diaphragm and the second diaphragm, and thereby improving the sound effect of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic cross-sectional view of the structure of the coaxial loudspeaker provided by the present invention;

[0017] Figure 2 A schematic diagram of the structure of the coaxial loudspeaker provided by the present invention;

[0018] Figure 3 A first structural schematic diagram of a first bracket of a coaxial loudspeaker provided by the present invention;

[0019] Figure 4 A second structural schematic diagram of the first bracket of the coaxial loudspeaker provided by the present invention;

[0020] Figure 5 This is a schematic structural diagram of the second bracket of the coaxial loudspeaker provided by the present invention. DETAILED DESCRIPTION

[0021] In the present invention, the terms "disposed", "provided with" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The following is the content of the first aspect of the present invention:

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

[0027] The first diaphragm 1 is a bass diaphragm of the speaker, and the second diaphragm 4 is a treble diaphragm of the speaker. The sound guide 8 is used to conduct the sound waves generated by the second diaphragm 4 .

[0028] Specifically, the first bracket 3 and the second bracket 6 are interlocked to form an accommodating space; the first diaphragm 1 and the second diaphragm 4 are respectively installed on the first bracket 3 and the second bracket 6; the magnetic component 7 is arranged in the accommodating space, a first gap 9 is formed between the magnetic component 7 and the first bracket 3, and a second gap 10 is formed inside the magnetic component 7, one end of the first voice coil 2 is connected to the first diaphragm 1, and 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, and 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 component 7 and passes through the first diaphragm 1, a first channel 73 is opened on the magnetic component 7, and the sound guide 8 is connected to the first channel 73 to form a sound output channel.

[0029] During the operation of the speaker, the control current passes 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 of corresponding strengths according to the control current flowing in. Under the interaction of the magnetic field of the magnetic component 7, the first voice coil 2 located in the first gap 9 and the second voice coil 5 located in the second gap 10 respectively generate corresponding movements, thereby respectively pushing the first diaphragm 1 and the second diaphragm 4 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. By utilizing the sound output channel formed by the sound guide 8 and the first channel 73, the high-frequency sound waves generated by the second diaphragm 4 can be effectively output.

[0031] It can be understood that by opening the first channel 73 on the magnetic component 7 and arranging the sound guide 8 that passes through the first diaphragm 1 on the magnetic component 7, it is possible to effectively support the first diaphragm 1 to adjust the bass cavity and improve the bass performance. The sound output channel formed by the connection between the sound guide 8 and the first channel 73 can effectively adjust the performance of the second diaphragm 4 and adjust the treble cutoff frequency. The first diaphragm 1 and the second diaphragm 4 can be effectively separated, and the phase interference between the first diaphragm 1 and the second diaphragm 4 can be reduced, thereby improving the sound effect of the speaker.

[0032] For further information, please refer to Figure 1 In one embodiment, the magnetic assembly 7 includes a hollow magnetic body 71 and a magnetic conductor 72 disposed on the magnetic body 71 ; a first gap 9 is formed between the magnetic body 71 and the second bracket 6 , and a 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 speaker 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, a through groove is provided in the middle of the magnetic body 71, and the magnetic conductor 72 is in a boss shape. The magnetic body 71 is arranged on the second bracket 6, and a first gap 9 is formed between the outer surface of the magnetic body 71 and the second bracket 6. The second magnetic conductor 72 is arranged on the magnetic body 71, and the boss portion of the magnetic conductor 72 is located in the through groove of the magnetic body 71, and the boss portion of the magnetic conductor 72 and the side wall of the through groove of the magnetic body 71 form a second gap 10.

[0035] It can be understood that by arranging the components and structures of the magnetic component 7, a movement gap between the first voice coil 2 and the second voice coil 5 can be formed respectively by one magnetic component 7, which can effectively reduce the number of magnetic components 7 and the space occupied by the stacked magnetic components 7, thereby effectively reducing the volume of the speaker and reducing the production cost of the speaker.

[0036] For further information, please refer to Figure 3 and Figure 4 In one embodiment, the first bracket 3 includes a fitting body 31 and an electrical connection portion 32 disposed on one side of the fitting body 31 ; a mounting boss 311 is formed at one end of the fitting body 31 , and a fitting boss 312 is formed at the other end of the fitting body 31 .

[0037] The interlocking body 31 is the main body when the first bracket 3 and the second bracket 6 are interlocked with each other, and the electrical connection part 32 is the joint part where the first voice coil 2 and the second voice coil 5 are electrically connected to the outside world. The mounting boss 311 is the mounting part where the first diaphragm 1 is set on the first bracket 3, and the interlocking boss 312 is the limiting part where the first bracket 3 and the second bracket 6 are interlocked with each other.

[0038] In a preferred embodiment, the first diaphragm 1 is bonded to the mounting boss 311. After the first bracket 3 and the second bracket 6 are interlocked, the interlocking boss 312 and the second bracket 6 may be bonded to further improve the stability of the interlocking.

[0039] For further information, please refer to Figure 3 In one embodiment, a first tuning portion 313 is formed on the side of the embedded body 31. Specifically, the first tuning portion 313 is a tuning groove, and a tuning mesh is bonded to the tuning groove. It can be understood that by providing the first tuning portion 313, the pressure between the front cavity of the earphone where the speaker is located and the outside world can be effectively balanced.

[0040] For further information, please refer to Figure 2 In one embodiment, an electrical connector 321 is provided on the electrical connection portion 32 .

[0041] The electrical connector 321 may be an FPC component or a PCB component. Specifically, the electrical connector 321 is provided with a bass soldering piece and a treble soldering piece for respectively connecting the first voice coil 2 and the second voice coil 5. It can be understood that by adding the electrical connector 321 to the electrical connector 32, the physical frequency division of the high and low audio frequencies can be achieved without increasing the overall height of the speaker.

[0042] For further information, please refer to Figure 2 In a preferred embodiment, at least one group of pads 322 is provided on the electrical connector 321 .

[0043] The pads 322 can be used as the connection endpoints between the first voice coil 2 and / or the second voice coil 5 and the outside world. Specifically, the electrical connector 321 can be provided with a group of low-pitched pads for connecting the first voice coil 2 and a group of pads 322 for connecting the second voice coil 5; a group of pads 322 for connecting the first voice coil 2 and a group of high-pitched pads for connecting the second voice coil 5 can also be provided; or two groups of pads 322 respectively connecting the first voice coil 2 and the second voice coil 5 can be provided, which can be selected according to the actual design requirements. Preferably, two groups of pads 322 respectively connecting the first voice coil 2 and the second voice coil 5 are provided.

[0044] It can be understood that by providing at least one group of solder pads 322 on the electrical connector 321, at least one group of solder pads can be saved while achieving physical frequency division of high and low audio frequencies, thereby effectively reducing the cost of the speaker.

[0045] For further information, please refer to Figure 5 In one embodiment, the second bracket 6 includes a receiving body 61 with a cavity formed therein, and a mounting groove 62 for mounting the second diaphragm 4 is formed on the receiving body 61.

[0046] The cavity of the accommodating body 61 is used to install the magnetic component 7 . Specifically, the magnetic component 7 is bonded into the cavity of the accommodating body 61 , and the second diaphragm 4 is bonded to the mounting groove 62 .

[0047] For further information, please refer to Figure 5 In a preferred embodiment, a connecting groove 63 connecting the mounting groove 62 and the first bracket 3 is formed on the receiving body 61. A second tuning portion 64 is provided on the receiving body 61.

[0048] The connecting groove 63 serves as a passage for the second voice coil 5 to be electrically connected to the electrical connection portion 32. Specifically, the connecting groove 63 can be a rectangular groove or an arc groove, which can be selected according to actual design requirements. The second tuning portion 64 is a tuning through groove, and a tuning mesh is arranged on the second tuning portion 64.

[0049] It can be understood that by providing the connecting groove 63, the second voice coil 5 can be electrically connected to the electrical connection portion 32 on the first bracket 3 through the connecting groove, which can effectively solve the welding problem of the second voice coil 5, and can realize that the first voice coil 2 and the second voice coil 5 share the same magnetic circuit system, thereby reducing the cost and manufacturing difficulty of the speaker and reducing the thickness of the speaker.

[0050] In summary, the present invention opens a first channel 73 on the magnetic component 7 and sets a sound guide 8 that passes through the first diaphragm 1 on the magnetic component 7, so as to effectively support the first diaphragm 1 to adjust the bass cavity. The sound output channel formed by the connection between the sound guide 8 and the first channel 73 can effectively adjust the performance of the second diaphragm 4 and the treble cutoff frequency, and can effectively separate the first diaphragm 1 and the second diaphragm 4, thereby reducing the phase interference between the first diaphragm 1 and the second diaphragm 4, thereby improving the sound effect of the speaker.

[0051] The second aspect of the present invention further provides an earphone, which includes the coaxial speaker in the aforementioned embodiment. The coaxial speaker can effectively reduce the size of the earphone and improve the sound quality of the earphone.

[0052] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A coaxial loudspeaker, characterized in that: It includes a first diaphragm, a first voice coil, a first bracket, a second diaphragm, a second voice coil, a second bracket, a magnetic component and a sound guide; the first bracket and the second bracket are interlocked to form a accommodating space; the first diaphragm and the second diaphragm are respectively installed on the first bracket and the second bracket; the magnetic component is arranged in the accommodating space, a first gap is formed between the magnetic component and the second bracket, a second gap is formed inside the magnetic component, one end of the first voice coil is connected to the first 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 of the second voice coil is located in the second gap; the sound guide is arranged on the magnetic component and passes through the first diaphragm, a first channel is opened on the magnetic component, and the sound guide is connected to the first channel to form a sound output channel.

2. The coaxial loudspeaker according to claim 1, characterized in that: The magnetic assembly includes a hollow magnetic body and a magnetic conductor disposed on the magnetic body; the first gap is formed between the magnetic body and the second bracket, and the second gap is formed between the magnetic body and the magnetic conductor.

3. The method according to claim 1, characterized in that: The first bracket includes a fitting body and an electrical connection portion arranged on one side of the fitting body; a mounting boss is formed at one end of the fitting body, and a fitting boss is formed at the other end of the fitting body.

4. The coaxial loudspeaker according to claim 3, characterized in that: A first tuning portion is formed on a side surface of the engaging body.

5. The coaxial loudspeaker according to claim 3, characterized in that: The electrical connection part is provided with an electrical connection piece.

6. The coaxial loudspeaker according to claim 5, characterized in that: At least one group of welding pads is arranged on the electrical connector.

7. The coaxial loudspeaker according to claim 1, characterized in that: The second bracket includes a receiving body with a cavity formed therein, and the receiving body is provided with a mounting groove for mounting the second diaphragm.

8. The coaxial loudspeaker according to claim 7, characterized in that: The accommodating body is provided with a connecting groove connecting the mounting groove and the first bracket.

9. The coaxial loudspeaker according to claim 7, characterized in that: The accommodating body is provided with a second tuning part.

10. An earphone, characterized in that: A coaxial loudspeaker comprising any one of preceding claims 1 to 9.

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