Coaxial loudspeaker and earphone

Abstract

The utility model discloses a coaxial loudspeaker and earphone, it includes support, first sounding component, second sounding component, first magnetic component, second magnetic component, third magnetic component and bearing piece, the accommodating cavity that forms in the support with the both ends of support intercommunication, first sounding component installs in one end of support, and second sounding component installs in the other end of support, bearing piece installs in the accommodating cavity, and first magnetic component sets up in bearing piece inside close to the side of first sounding component, to form first magnetic area, and second magnetic component and third magnetic component set up respectively on the side of bearing piece close to second sounding component, and third magnetic component is located in second magnetic component, to form second magnetic area. It realizes that first sounding component and second sounding component share the same magnetic circuit system through the bearing piece of additional, has increased the driving force of second sounding component, has improved the BL value and sensitivity of second sounding component, has strengthened the high frequency output effect of loudspeaker.

Description

Technical Field

[0001] This utility model relates to the field of coaxial speaker technology, and in particular to a coaxial speaker and headphones. Background Technology

[0002] With the rapid development of electronic technology, users have increasingly higher requirements for the sound quality of headphones. In existing headphone speakers, the magnetic circuit components of the woofer and tweeter are usually independent of each other. Due to the limited internal space of the speaker, the magnetic circuit components of the tweeter are usually relatively small. This directly affects the driving force of the tweeter in the speaker, reduces the sensitivity and BL value of the tweeter, and thus directly affects the output performance of the speaker at high frequencies, affecting the user experience.

[0003] Therefore, it is necessary to provide a coaxial speaker and headphones to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a coaxial speaker and headphones, which aims to solve the problems of insufficient driving force of the tweeter unit, low BL value and sensitivity, and poor speaker output effect.

[0005] To achieve the above objectives, a first aspect of this utility model provides a coaxial loudspeaker, comprising a bracket, a first sound-emitting component, a second sound-emitting component, a first magnetic component, a second magnetic component, a third magnetic component, and a carrier; a receiving cavity is formed within the bracket, connecting both ends of the bracket; the first sound-emitting component is mounted at one end of the bracket, and the second sound-emitting component is mounted at the other end of the bracket; the carrier is mounted within the receiving cavity, and the first magnetic component is disposed inside the carrier on the side near the first sound-emitting component to form a first magnetic region; the second magnetic component and the third magnetic component are respectively disposed on the side of the carrier near the second sound-emitting component, and the third magnetic component is located within the second magnetic component to form a second magnetic region.

[0006] In a preferred embodiment, the carrier includes a carrier portion and an extension portion extending from the carrier portion.

[0007] In a preferred embodiment, the first magnetic assembly includes a first magnetic element and a first magnetic conductive element mounted on the first magnetic element; the second magnetic assembly includes a second magnetic element and a second magnetic conductive element mounted on the second magnetic element; and the third magnetic assembly includes a third magnetic element and a third magnetic conductive element mounted on the third magnetic element.

[0008] In a preferred embodiment, the first and third magnetic conductive elements are both cylindrical; the second magnetic conductive element is an annular.

[0009] In a preferred embodiment, the bracket includes a first mounting portion, a connecting portion, a second mounting portion, and an electrical connection portion; the connecting portion is connected between the first mounting portion and the second mounting portion; the electrical connection portion is formed on the side wall of the first mounting portion.

[0010] In a preferred embodiment, a bearing boss is formed in the connecting portion; a limiting boss is formed on the first mounting portion.

[0011] In a preferred embodiment, the first mounting portion is provided with a plurality of pressure relief grooves.

[0012] In a preferred embodiment, pressure relief grooves are distributed in a ring on the first mounting portion.

[0013] In a preferred embodiment, the first mounting part has a first communicating groove that connects the receiving cavity to the outside; the second mounting part has a second communicating groove that connects the receiving cavity to the outside.

[0014] A second aspect of this invention provides an earphone that includes the coaxial speaker found in any of the above embodiments.

[0015] The beneficial effects of this utility model are as follows: by setting a carrier and utilizing the stacked connection structure of the first magnetic component, the second magnetic component, the third magnetic component and the carrier, the first sound-generating component and the second sound-generating component share the same magnetic circuit system, which optimizes the internal space stacking of the coaxial speaker, reduces the volume of the coaxial speaker, increases the driving force of the second sound-generating component, improves the BL value and sensitivity of the second sound-generating component, thereby obtaining a better high-frequency output effect and enhancing the overall sound quality of the speaker. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the coaxial loudspeaker provided by this utility model;

[0017] Figure 2 A cross-sectional view of the coaxial loudspeaker provided by this utility model;

[0018] Figure 3 A schematic diagram of the structure of the support component provided by this utility model;

[0019] Figure 4 A first schematic diagram of the structure of the bracket provided by this utility model;

[0020] Figure 5 This is a second schematic diagram of the structure of the bracket provided by this utility model. Detailed Implementation

[0021] In this utility model, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or constituent parts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

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

[0023] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

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

[0026] Please refer to Figure 1 and Figure 2 In this embodiment, the coaxial loudspeaker includes a bracket 1, a first sound-emitting component 2, a second sound-emitting component 3, a first magnetic component 4, a second magnetic component 5, a third magnetic component 6, and a carrier 7.

[0027] The bracket 1 is the frame structure of the coaxial speaker, used to house and support the other components of the coaxial speaker. The first sound-producing component 2 is the bass component of the coaxial speaker, used to reproduce bass audio; the first sound-producing component 2 includes a first diaphragm 21 and a first voice coil 22 connected to the first diaphragm 21 at one end. The second sound-producing component 3 is the tweeter component of the coaxial speaker, used to reproduce treble audio; the second sound-producing component 3 includes a second diaphragm 31 and a second voice coil 32 connected to the second diaphragm 31 at one end. The carrier 7 is used to support the first magnetic component 4, the second magnetic component 5, and the third magnetic component 6, and can also be used to conduct the magnetic fields of the first magnetic component 4, the second magnetic component 5, and the third magnetic component 6; the first magnetic component 4, the second magnetic component 5, the third magnetic component 6, and the carrier 7 together constitute the magnetic circuit system of the coaxial speaker, used to generate the magnetic field inside the coaxial speaker to drive the first voice coil 22 and the second voice coil 32, respectively driving the first diaphragm 21 and the second diaphragm 31 to reciprocate, producing corresponding treble and bass audio.

[0028] A receiving cavity is formed inside the support 1, connecting both ends of the support 1; a first sound-generating component 2 is installed at one end of the support 1, and a second sound-generating component 3 is installed at the other end of the support 1; a carrier 7 is installed inside the receiving cavity, and a first magnetic component 4 is disposed inside the carrier 7 on the side close to the first sound-generating component 2 to form a first magnetic region 8; a second magnetic component 5 and a third magnetic component 6 are respectively disposed on the side of the carrier 7 close to the second sound-generating component 3, and the third magnetic component 6 is located inside the second magnetic component 5 to form a second magnetic region 9.

[0029] Specifically, the first magnetic component 4 is disposed within the carrier 7. Through the magnetic conduction of the carrier 7 to the second magnetic component 5 and the third magnetic component 6, a first magnetic region 8 with concentrated magnetic field can be formed between the first magnetic component 4 and the carrier 7. One end of the first voice coil 22 is connected to the first diaphragm 21, and the other end of the first voice coil 22 is located within the first magnetic region 8. The third magnetic component 6 is located within the second magnetic component 5. Through the magnetic conduction of the carrier 7 to the first magnetic component 4, a second magnetic region 9 with concentrated magnetic field can be formed between the second magnetic component 5, the third magnetic component 6, and the carrier 7. One end of the second voice coil 32 is connected to the second diaphragm 31, and the other end of the second voice coil 32 is located within the second magnetic region 9.

[0030] When current passes through the first voice coil 22, the first voice coil 22 generates a magnetic field. Under the interaction of the magnetic field of the first voice coil 22 and the magnetic field of the first magnetic region 8, the first voice coil 22 can reciprocate, thereby driving the first diaphragm 21 to vibrate, thus producing the corresponding low-frequency sound. When current passes through the second voice coil 32, the second voice coil 32 generates a magnetic field. Under the interaction of the magnetic field of the second voice coil 32 and the magnetic field of the second magnetic region 9, the second voice coil 32 can reciprocate, thereby driving the second diaphragm 31 to vibrate, thus producing the corresponding high-frequency sound.

[0031] It is understandable that by setting up the carrier 7 and utilizing the stacked connection structure of the first magnetic component 4, the second magnetic component 5, the third magnetic component 61 and the carrier 7, the first sound-generating component 2 and the second sound-generating component 3 share the same magnetic circuit system, which optimizes the internal space stacking of the coaxial speaker, reduces the volume of the coaxial speaker, increases the driving force of the second sound-generating component 3, and improves the BL value and sensitivity of the second sound-generating component 3, thereby obtaining better high-frequency output effect and enhancing the overall sound quality of the speaker.

[0032] For further details, please refer to... Figure 2 and Figure 3 In one embodiment, the carrier 7 includes a carrier portion 71 and an extension portion 72 extending from the carrier portion 71. The carrier portion 71 is used to mount the first magnetic component 4, the second magnetic component 5, and the third magnetic component 6, and also to conduct the magnetic fields of the first magnetic component 4, the second magnetic component 5, and the third magnetic component 6.

[0033] Specifically, the extension 72 extends from the edge of the support portion 71, forming a receiving cavity between the extension 72 and the support portion 71. The opening of the receiving cavity faces the first sound-generating component 2, and the first magnetic component 4 is installed inside the receiving cavity, that is, the first magnetic component 4 is disposed on the side of the support portion 71 near the first sound-generating component 2. The second magnetic component 5 and the third magnetic component 6 are both disposed on the side of the support portion 71 near the second sound-generating component 3, and the third magnetic component 6 is located inside the second magnetic component 5.

[0034] Through the magnetic conduction of the second magnetic component 5 and the third magnetic component 6 by the support portion 71 and the extension portion 72, the first magnetic component 4, the extension portion 72, and the support portion 71 form a first magnetic region 8. Through the magnetic conduction of the first magnetic component by the support portion 71, the second magnetic component 5, the third magnetic component 6, and the support portion 71 form a second magnetic region 9.

[0035] It is understandable that by setting the support part 71 and the extension part 72, while optimizing the stacking and mounting structure between the first magnetic component 4, the second magnetic component 5 and the third magnetic component 6, the first sound-generating component 2 and the second sound-generating component 3 can share the same magnetic circuit system by utilizing the conduction effect of the support part 71 and the extension part 72, thereby improving the driving force of the second sound-generating component 3 and thus improving the output effect of the second sound-generating component.

[0036] For further details, please refer to... Figure 2 In one embodiment, the first magnetic component 4 includes a first magnetic element 41 and a first magnetic conductive element 42 mounted on the first magnetic element 41; the second magnetic component 5 includes a second magnetic element 51 and a second magnetic conductive element 52 mounted on the second magnetic element 51; and the third magnetic component 6 includes a third magnetic element 61 and a third magnetic conductive element 62 mounted on the third magnetic element 61.

[0037] In this assembly, the first magnetic component 41 is a device in the first magnetic component 4 used to generate a magnetic field, and the first magnetic conductive component 42 is used to conduct the magnetic field generated by the first magnetic component 41. The second magnetic component 51 is a device in the second magnetic component 5 used to generate a magnetic field, and the second magnetic conductive component 52 is used to conduct the magnetic field generated by the second magnetic component 51. The third magnetic component 61 is a device in the third magnetic component 6 used to generate a magnetic field, and the third magnetic conductive component 62 is used to conduct the magnetic field generated by the third magnetic component 61.

[0038] Specifically, the first magnetic conductive element 42 is bonded to the side of the first magnetic element 41 near the first sound-generating component 2; the second magnetic conductive element 52 is bonded to the side of the second magnetic element 51 near the second sound-generating component 3; and the third magnetic conductive element 62 is bonded to the side of the third magnetic element 61 near the second sound-generating component 3. It can be understood that by setting the first magnetic conductive element 42, the second magnetic conductive element 52, and the third magnetic conductive element 62, the magnetic field can be better concentrated in the first magnetic region 8 and the second magnetic region 9, thereby increasing the driving force of the coaxial speaker on the second sound-generating component 3.

[0039] In a preferred embodiment, the first magnetic conductor 42 and the third magnetic conductor 62 are both cylindrical; the second magnetic conductor 52 is an annular. It is easy to understand that designing the first magnetic conductor 42 and the third magnetic conductor 62 as cylindrical and the second magnetic conductor 52 as an annular enhances the magnetism of the first magnetic conductor 42. When the first sound-generating assembly 2 and the second sound-generating assembly 3 share the same magnetic circuit system, it can better provide driving force to the second sound-generating assembly 3. Simultaneously, it improves the ease of installation of the second magnetic assembly 5 and the third magnetic assembly 6, and can relatively better optimize the internal spatial stacking layout of the coaxial speaker, reducing the size of the coaxial speaker.

[0040] For further details, please refer to... Figure 4 and Figure 5 In one embodiment, the bracket 1 includes a first mounting portion 11, a connecting portion 12, a second mounting portion 13, and an electrical connection portion 14; the connecting portion 12 is connected between the first mounting portion 11 and the second mounting portion 13; the electrical connection portion 14 is formed on the side wall of the first mounting portion 11.

[0041] The first mounting part 11 is a support part 71 of the bracket 1 used to support the first sound-generating component 2, and the second mounting part 13 is a support part 71 of the bracket 1 used to support the second sound-generating component 3. The connecting part 12 is the connection structure between the first mounting part 11 and the second mounting part 13, and can be used to accommodate the magnetic circuit system inside the coaxial speaker. The electrical connection part 14 is the electrical connection structure for the external control board to electrically connect to the coaxial speaker, and can realize the current conduction between the first voice coil 22 and the second voice coil 32.

[0042] Specifically, the first mounting part 11 is approximately ring-shaped, the connecting part 12 extends from the inner sidewall of the first mounting part 11, the second mounting part 13 extends from the connecting part 12, and the electrical connection part 14 extends from the first mounting part 11.

[0043] In a preferred embodiment, a bearing boss 122 is formed in the connecting portion 12; a limiting boss 112 is formed on the first mounting portion 11. The bearing boss 122 is the bearing structure of the bearing member 7, and the limiting boss 112 is the guide structure for mounting the first sound-generating component 2.

[0044] Specifically, the support member 7 is bonded to the support boss 122 on the side closest to the first sound-generating component 2. It is easy to understand that by setting the support boss 122, the ease and precision of installing the support member 7 are improved, the stability of the support member 7 during the use of the coaxial speaker is enhanced, and the output effect of the coaxial speaker is ensured to a certain extent. The first diaphragm 21 is bonded to the outer wall of the limiting boss 112. It is easy to understand that by setting the limiting boss 112, while improving the ease of installing the first diaphragm 21, the stability of the first diaphragm 21 under the relatively large driving force of the magnetic circuit system is ensured.

[0045] For further details, please refer to... Figure 4 and Figure 5 In one embodiment, the first mounting portion 11 is provided with a plurality of pressure relief grooves 111. The pressure relief grooves 111 are used to reduce the back pressure resistance generated when the first diaphragm 21 vibrates, thereby improving the output effect of the first diaphragm 21.

[0046] Specifically, the number of pressure relief grooves 111 can be selected according to the actual design requirements. Preferably, there are four pressure relief grooves 111. The first magnetic component 4, the second magnetic component 5, and the third magnetic component 6 together constitute the magnetic circuit system of the coaxial speaker. That is, this magnetic circuit system drives the first voice coil 22 with a relatively larger driving force to drive the first diaphragm 21 to vibrate. The first diaphragm 21 will reciprocate significantly. By setting several pressure relief grooves 111, the pressure difference inside and outside the first diaphragm 21 can be better adjusted, which can effectively reduce the back pressure resistance of the diaphragm and effectively reduce the generation of gas turbulence, thereby reducing wind noise and improving the purity of the sound. At the same time, during the reciprocating vibration of the first voice coil 22, the first voice coil 22 will generate heat. By setting several pressure relief grooves 111, the first voice coil 22 can also be cooled to a certain extent.

[0047] In a preferred embodiment, pressure relief grooves 111 are distributed in a ring on the first mounting portion 11. Specifically, a plurality of connecting blocks 121 are connected between the connecting portion 12 and the first mounting portion 11, that is, a pressure relief groove 111 is formed between two adjacent connecting blocks 121. It can be understood that by distributing the pressure relief grooves 111 in a ring on the first mounting portion 11, the stacking distribution of the coaxial speakers is optimized, the size of the coaxial speakers is reduced to a certain extent, and thus the installation compatibility of the coaxial speakers is improved.

[0048] For further details, please refer to... Figure 4 and Figure 5 The first mounting portion 11 has a first connecting groove 113 that connects the receiving cavity to the outside; the second mounting portion 13 has a second connecting groove 131 that connects the receiving cavity to the outside. The first connecting groove 113 serves as a guide structure for the electrical connection of the first voice coil 22, allowing the first voice coil 22 to be electrically connected to the electrical connection portion 14 via the first connecting groove 113, and subsequently to the external control main board. The second connecting groove 131 serves as a guide structure for the electrical connection of the second voice coil 32, allowing the second voice coil 32 to be electrically connected to the electrical connection portion 14 via the second connecting groove 131, and subsequently to the external control main board.

[0049] Specifically, the first connecting groove 113 is formed on the side wall of the first mounting part 11 near the electrical connection part 14, and the second connecting groove 131 is formed on the side wall of the second mounting part 13 near the electrical connection part 14. It is easy to understand that by forming the first connecting groove 113 and the second connecting groove 131 on the side walls of the first mounting part 11 and the second mounting part 13 near the electrical connection part 14 respectively, the distance between the first voice coil 22 and the second voice coil 32 and the electrical connection part 14 can be effectively reduced, which to a certain extent optimizes the internal space stacking of the coaxial speaker and improves the assembly convenience of the coaxial speaker.

[0050] In summary, by setting up the carrier 7 and utilizing the stacked connection structure of the first magnetic component 4, the second magnetic component 5, the third magnetic component 61, and the carrier 7, this application enables the first sound-generating component 2 and the second sound-generating component 3 to share the same magnetic circuit system. This optimizes the internal space stacking of the coaxial speaker, reduces the volume of the coaxial speaker, increases the driving force of the second sound-generating component 3, and improves the BL value and sensitivity of the second sound-generating component 3, thereby obtaining better high-frequency output effect and enhancing the overall sound quality of the speaker.

[0051] The second aspect of this utility model also provides an earphone, which includes the coaxial speaker in the foregoing embodiment. By using the coaxial speaker, the driving force of the second sound-generating component 3 is increased, the BL value and sensitivity of the second sound-generating component 3 are improved, thereby obtaining a better high-frequency output effect and enhancing the overall sound quality of the speaker.

[0052] The above are merely specific embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A coaxial loudspeaker, characterized in that, The device includes a support, a first sound-generating component, a second sound-generating component, a first magnetic component, a second magnetic component, a third magnetic component, and a carrier. The support has a receiving cavity connecting both ends of the support. The first sound-generating component is installed at one end of the support, and the second sound-generating component is installed at the other end of the support. The carrier is installed within the receiving cavity. The first magnetic component is disposed inside the carrier on the side closest to the first sound-generating component to form a first magnetic region. The second magnetic component and the third magnetic component are respectively disposed on the side of the carrier close to the second sound-generating component, and the third magnetic component is located within the second magnetic component to form a second magnetic region.

2. The coaxial loudspeaker according to claim 1, characterized in that, The carrier includes a carrier portion and an extension portion extending from the carrier portion.

3. The coaxial loudspeaker according to claim 1, characterized in that, The first magnetic component includes a first magnetic element and a first magnetic conductive element mounted on the first magnetic element; the second magnetic component includes a second magnetic element and a second magnetic conductive element mounted on the second magnetic element; the third magnetic component includes a third magnetic element and a third magnetic conductive element mounted on the third magnetic element.

4. The coaxial loudspeaker according to claim 3, characterized in that, Both the first and third magnetic conductive components are cylindrical; the second magnetic conductive component is an annular component.

5. The coaxial loudspeaker according to claim 1, characterized in that, The bracket includes a first mounting part, a connecting part, a second mounting part, and an electrical connection part; the connecting part is connected between the first mounting part and the second mounting part; the electrical connection part is formed on the side wall of the first mounting part.

6. The coaxial loudspeaker according to claim 5, characterized in that, A bearing boss is formed in the connecting part; a limiting boss is formed on the first mounting part.

7. The coaxial loudspeaker according to claim 5, characterized in that, The first mounting part is provided with several pressure relief grooves.

8. The coaxial loudspeaker according to claim 7, characterized in that, The pressure relief grooves are distributed in a ring on the first mounting part.

9. The coaxial loudspeaker according to claim 5, characterized in that, The first mounting part has a first communicating groove that connects the receiving cavity to the outside; the second mounting part has a second communicating groove that connects the receiving cavity to the outside.

10. An earphone, characterized in that, The coaxial loudspeaker includes any one of claims 1 to 9.

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