Loudspeaker and earphone with built-in voltage-sharing channel

Abstract

The invention discloses a loudspeaker and an earphone with built-in voltage-sharing channels. The loudspeaker and the earphone comprise a vibrating diaphragm, a voice coil, a support, a first magnetic assembly, a second magnetic assembly and a covering piece. The vibrating diaphragm and the covering piece are respectively arranged at two ends of the bracket to form an accommodating cavity; the first magnetic assembly and the second magnetic assembly are both arranged in the accommodating cavity, and the second magnetic assembly is located in the first magnetic assembly to form a gap; one end of the voice coil is connected to the diaphragm, and the other end of the voice coil is located in the gap; a first pressure equalizing hole is formed in the vibrating diaphragm, a second pressure equalizing hole is formed in the second magnetic assembly, a third pressure equalizing hole is formed in the covering piece, and the first pressure equalizing hole, the second pressure equalizing hole and the third pressure equalizing hole are sequentially communicated to form a pressure equalizing channel. Compared with the prior art, by arranging the voltage-sharing channel in the loudspeaker, the volume of the loudspeaker can be reduced, the overall shape of the loudspeaker is relatively regular, the space occupied by the loudspeaker in the earphone can be effectively reduced, and the space stacking in the earphone is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and in particular to a loudspeaker and earphone with a built-in pressure equalization channel. Background Art

[0002] With the continuous development of electronic technology, users have higher and higher requirements for the size and shape of headphones. Among the components of headphones, the size and layout of the speakers will affect the overall size and shape of the headphones. In existing headphones, in order to balance the pressure between the front cavity of the headphones and the outside world, the pressure equalizing holes are usually placed on the edge of the speaker. The external placement will increase the size of the speaker to a certain extent, increase the volume occupied by the speaker inside the headphones, and cause the speaker to have an irregular shape, thereby not utilizing the stacking of the internal structure of the headphones.

[0003] In view of this, it is necessary to provide a speaker and earphone with a built-in pressure equalization channel to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a speaker and earphone with a built-in pressure equalizing channel, which can reduce the size of the speaker, improve the shape regularity of the speaker, optimize the stacking layout of the internal space of the earphone, thereby reducing the size of the earphone and improving the freedom of earphone shape design.

[0005] To achieve the above-mentioned objectives, a first aspect of the present invention provides a loudspeaker with a built-in pressure equalizing channel, which includes a diaphragm, a voice coil, a bracket, a first magnetic component, a second magnetic component and a cover; the diaphragm and the cover are respectively arranged at both ends of the bracket to form a accommodating cavity; the first magnetic component and the second magnetic component are both arranged in the accommodating cavity, and the second magnetic component is located in the first magnetic component to form a gap; one end of the voice coil is connected to the diaphragm, and the other end of the voice coil is located in the gap; a first pressure equalizing hole is opened on the diaphragm, a second pressure equalizing hole is opened on the second magnetic component, and a third pressure equalizing hole is opened on the cover, and the first pressure equalizing hole, the second pressure equalizing hole and the third pressure equalizing hole are connected in sequence to form a pressure equalizing channel.

[0006] In a preferred embodiment, the bracket includes a hollow receiving body and an electrical connection portion arranged on one side of the receiving body, a mounting boss is protruded from one end of the receiving body, and an abutment platform is formed in the receiving body.

[0007] In a preferred embodiment, a connecting groove connected to the receiving body is provided on the electrical connecting portion.

[0008] In a preferred embodiment, a limiting block is formed at the other end of the receiving body, and a limiting groove corresponding to the limiting block is provided on the covering member.

[0009] In a preferred embodiment, the first magnetic component includes a first magnetic body and a first magnetic conductor bonded to the first magnetic body; the second magnetic component includes a second magnetic body and a second magnetic conductor bonded to the second magnetic body, and the second equalizing hole passes through the second magnetic body and the second magnetic conductor.

[0010] In a preferred embodiment, the second magnetic assembly further includes a third magnetic body, the third magnetic body is bonded to the second magnetic conductive body, and the second pressure equalizing hole passes through the third magnetic body.

[0011] In a preferred embodiment, a plurality of tuning holes are provided on the cover.

[0012] In a preferred embodiment, the tuning holes are distributed at equal angles around the third pressure equalizing hole.

[0013] In a preferred embodiment, the loudspeaker with a built-in pressure equalizing channel further includes a tuning mesh, and the tuning mesh is bonded to the cover.

[0014] A second aspect of the present invention provides a loudspeaker with a built-in pressure equalization channel in any one of the above embodiments.

[0015] The beneficial effects of the present invention are as follows: by respectively opening a first pressure equalizing hole, a second pressure equalizing hole and a third pressure equalizing hole on the diaphragm, the second magnetic component and the cover component, and connecting the first pressure equalizing hole, the second pressure equalizing hole and the third pressure equalizing hole in sequence to form a pressure equalizing channel, the pressure equalizing part of the speaker is arranged inside the speaker. Without affecting the overall magnetic properties of the second magnetic component, the volume of the speaker can be reduced, and the overall shape of the speaker can be made relatively more regular, which can effectively reduce the space occupied by the speaker inside the earphone, and is conducive to the space stacking inside the earphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A first cross-sectional schematic diagram of the structure of a loudspeaker with a built-in pressure equalizing channel provided by the present invention;

[0017] Figure 2 A schematic structural diagram of a bracket of a loudspeaker with a built-in pressure equalizing channel provided by the present invention;

[0018] Figure 3 A schematic structural diagram of a cover member of a loudspeaker with a built-in pressure equalizing channel provided by the present invention;

[0019] Figure 4 This is a second cross-sectional schematic diagram of the structure of the loudspeaker with a built-in pressure equalizing channel provided by the present invention. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] The following is the content of the first aspect of the present invention:

[0025] Please refer to Figure 1 In this embodiment, the loudspeaker with a built-in pressure equalizing channel includes a diaphragm 1, a voice coil 2, a bracket 3, a first magnetic component 4, a second magnetic component 5 and a cover 6.

[0026] Among them, the diaphragm 1 and the cover part 6 are respectively arranged at the two ends of the bracket 3 to form a accommodating cavity; the first magnetic component 4 and the second magnetic component 5 are both arranged in the accommodating cavity, and the second magnetic component 5 is located in the first magnetic component 4 to form a gap, one end of the voice coil 2 is connected to the diaphragm 1, and the other end of the voice coil 2 is located in the gap.

[0027] Specifically, a first pressure equalizing hole 11 is opened on the diaphragm 1, a second pressure equalizing hole 53 is opened on the second magnetic component 5, and a third pressure equalizing hole 61 is opened on the cover 6. The first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 are connected in sequence to form a pressure equalizing channel.

[0028] The aperture sizes of the first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 can be the same or different; the first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 can be aligned with each other or offset from each other, and can be set according to actual design requirements.

[0029] In a preferred embodiment, the first pressure equalizing hole 11 is disposed in the middle of the diaphragm 1, the second pressure equalizing hole 53 is disposed in the middle of the second magnetic component 5, and the third pressure equalizing hole 61 is disposed in the middle of the cover 6, and the first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 have the same aperture size. It is easy to understand that by disposing the second pressure equalizing hole 53 in the middle of the second magnetic component 5, the influence of the second pressure equalizing hole 53 on the magnetism of the second magnetic component 5 can be effectively reduced.

[0030] After the speaker starts running, after the current passes through the voice coil 2, the voice coil 2 located in the gap formed by the first magnetic component 4 and the second magnetic component 5 generates a magnetic field. Under the interaction of the magnetic fields of the first magnetic component 4 and the second magnetic component 5, the voice coil 2 moves under the action of electromagnetic force, thereby pushing the diaphragm 1 to vibrate to generate sound waves. During the vibration of the diaphragm 1, the pressure in the front cavity of the earphone and the outside world can be balanced through the pressure equalization channel.

[0031] It can be understood that by respectively opening the first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 on the diaphragm 1, the second magnetic component 5 and the cover 6, and connecting the first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 in sequence to form a pressure equalizing channel, the pressure equalizing part of the speaker can be set inside the speaker. Without affecting the overall magnetic properties of the second magnetic component 5, the volume of the speaker can be reduced, making the overall shape of the speaker relatively more regular, and effectively reducing the space occupied by the speaker inside the earphone, which is beneficial to the space stacking inside the earphone.

[0032] For further information, please refer to Figure 2 In one embodiment, the bracket 3 includes a hollow receiving body 31 and an electrical connection portion 32 arranged on one side of the receiving body 31 , a mounting boss 311 is protruded from one end of the receiving body 31 , and a contact platform 312 is formed in the receiving body 31 .

[0033] The receiving body 31 is used to accommodate the first magnetic component 4 and the second magnetic component 5 ; the electrical connection portion 32 is used to install the electrodes of the speaker; the mounting boss 311 is used to install the diaphragm 1 ; and the abutting platform 312 is used to support the first magnetic component 4 .

[0034] Specifically, the first magnetic component 4 is disposed in the receiving body 31 and bonded to the abutting platform 312; the second magnetic component 5 is bonded to the cover 6; and the diaphragm 1 is bonded to the mounting boss 311. It is easy to understand that by providing the mounting boss 311 and the abutting platform 312, the installation efficiency and convenience of the diaphragm 1 and the first magnetic component 4 can be improved.

[0035] For further information, please refer to Figure 2 In a preferred embodiment, the electrical connection part 32 is provided with a connecting groove 321 connected to the receiving body 31. Specifically, the side wall of the electrical connection part 32 with the connecting groove 321 can be a plane or a curved surface. Preferably, the side wall is a plane. It is easy to understand that the side wall is selected as a plane, which can reduce the difficulty of processing and thus reduce the production cost.

[0036] It is understandable that by providing a connecting groove 321 connected to the receiving body 31, the convenience of disassembling the cover 6 can be improved, thereby improving the convenience of later maintenance or replacement of the first magnetic component 4 and the second magnetic component 5 installed in the receiving body 31.

[0037] For further information, please refer to Figure 2 and Figure 3 In a preferred embodiment, a limiting block 313 is formed at the other end of the receiving body 31 , and a limiting groove 62 corresponding to the limiting block 313 is provided on the cover 6 .

[0038] The limiting blocks 313 and the limiting grooves 62 are used for positioning and limiting the installation of the cover 6 and the bracket 3. Specifically, the number of the limiting blocks 313 and the number of the limiting grooves 62 can be selected according to the actual design requirements. In a preferred embodiment, the number of the limiting blocks 313 and the number of the limiting grooves 62 are both 3. It is easy to understand that by setting the number of the limiting blocks 313 and the number of the limiting grooves 62 to 3, the installation between the cover 6 and the bracket 3 can be made more stable by using the principle of three points forming a plane.

[0039] It can be understood that by respectively providing a limit block 313 and a limit groove 62 on the receiving body 31 and the cover 6, and utilizing the cooperation between the limit block 313 and the limit groove 62, the convenience and efficiency of positioning and installing the cover 6 on the bracket 3 can be improved, and the stability of the installation between the cover 6 and the bracket 3 can be improved to a certain extent.

[0040] For further information, please refer to Figure 1 In one embodiment, the first magnetic component 4 includes a first magnetic body 41 and a first magnetic conductive body 42 bonded to the first magnetic body 41; the second magnetic component 5 includes a second magnetic body 51 and a second magnetic conductive body 52 bonded to the second magnetic body 51, and the second equalizing hole 53 passes through the second magnetic body 51 and the second magnetic conductive body 52.

[0041] Among them, the first magnetic body 41 is the external magnetic part of the speaker, the second magnetic body 51 is the internal magnetic part of the speaker, the first magnetic conductor 42 is used to conduct and concentrate the magnetic field of the first magnetic body 41, and the second magnetic conductor 52 is used to conduct and concentrate the magnetic field of the second magnetic body 51, and can also support the diaphragm 1.

[0042] It can be understood that, through the first magnetic conductor 42 and the second magnetic conductor 52, the magnetic fields of the first magnetic body 41 and the second magnetic body 51 can be respectively concentrated in the gap formed by the first magnetic component 4 and the second magnetic component 5, so that a relatively strong magnetic field can be generated in the gap, which is more conducive to the interaction with the voice coil 2.

[0043] For further information, please refer to Figure 4 In a preferred embodiment, the second magnetic component 5 further includes a third magnetic body 54 , the third magnetic body 54 is bonded to the second magnetic conductor 52 , and the second pressure equalizing hole 53 passes through the third magnetic body 54 .

[0044] It can be understood that by setting the third magnetic body 54, the second magnetic body 51 and the third magnetic body 54 can constitute a double internal magnetic component structure. While the third magnetic body 54 supports the diaphragm 1, it can also relatively significantly increase the BL value, thereby improving the sensitivity of the speaker with a built-in pressure equalization channel.

[0045] For further information, please refer to Figure 3 In one embodiment, a plurality of tuning holes 63 are provided on the cover member 6 .

[0046] Specifically, the number and aperture of the tuning holes 63 can be selected according to actual design requirements. The distribution of the tuning holes 63 includes but is not limited to circumferential distribution, matrix distribution, etc. Similarly, they can be selected and set according to design requirements.

[0047] In a preferred embodiment, the tuning holes 63 are distributed at equal angles around the third pressure equalizing hole 61. It can be understood that the tuning holes 63 are distributed at equal angles around the third pressure equalizing hole 61, which can make the overall distribution of the tuning holes 63 relatively more uniform, thereby enabling the speaker to obtain a relatively better tuning effect, thereby improving the playback effect of the speaker.

[0048] For further information, please refer to Figure 4 In one embodiment, the loudspeaker with a built-in pressure equalizing channel further includes a tuning mesh 7 , and the tuning mesh 7 is bonded to the cover 6 .

[0049] It can be understood that by bonding the tuning mesh 7 to the cover 6, the tuning hole 63 and the third pressure equalizing hole 61 can be covered at the same time, so that a single tuning mesh 7 can achieve the dual effects of tuning and covering the third pressure equalizing hole 61, which can reduce the bonding steps in the production process and thus reduce the production cost of the speaker with a built-in pressure equalizing channel.

[0050] To summarize, the present invention respectively opens the first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 on the diaphragm 1, the second magnetic component 5 and the cover 6, and utilizes the first pressure equalizing hole 11, the second pressure equalizing hole 53 and the third pressure equalizing hole 61 to connect in sequence to form a pressure equalizing channel, and the pressure equalizing part of the speaker is arranged inside the speaker. Under the premise of not affecting the overall magnetic properties of the second magnetic component 5, the volume of the speaker can be reduced, the overall shape of the speaker is relatively more regular, and the space occupied by the speaker inside the earphone can be effectively reduced, which is beneficial to the space stacking inside the earphone.

[0051] The second aspect of the present invention also provides an earphone, which includes the speaker with a built-in pressure equalizing channel in the aforementioned embodiment. The speaker with a built-in pressure equalizing channel can effectively reduce the size of the earphone, optimize the internal space stacking of the earphone, and improve the freedom of earphone shape design.

[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 loudspeaker with a built-in pressure equalization channel, characterized in that: It includes a diaphragm, a voice coil, a bracket, a first magnetic component, a second magnetic component and a covering member; the diaphragm and the covering member are respectively arranged at two ends of the bracket to form a accommodating cavity; the first magnetic component and the second magnetic component are both arranged in the accommodating cavity, and the second magnetic component is located in the first magnetic component to form a gap; one end of the voice coil is connected to the diaphragm, and the other end of the voice coil is located in the gap; a first equalizing pressure hole is opened on the diaphragm, a second equalizing pressure hole is opened on the second magnetic component, and a third equalizing pressure hole is opened on the covering member, and the first equalizing pressure hole, the second equalizing pressure hole and the third equalizing pressure hole are connected in sequence to form a pressure equalizing channel.

2. The loudspeaker with a built-in pressure equalization channel according to claim 1, characterized in that: The bracket comprises a hollow receiving body and an electrical connection portion arranged on one side of the receiving body. A mounting boss is protruded from one end of the receiving body, and an abutting platform is formed in the receiving body.

3. The method according to claim 2, characterized in that: The electrical connection part is provided with a connecting groove connected with the receiving body.

4. The loudspeaker with a built-in pressure equalization channel according to claim 2, characterized in that: A limiting block is formed at the other end of the receiving body, and a limiting groove corresponding to the limiting block is arranged on the covering member.

5. The loudspeaker with a built-in pressure equalization channel according to claim 1, characterized in that: The first magnetic component includes a first magnetic body and a first magnetic conductive body bonded to the first magnetic body; the second magnetic component includes a second magnetic body and a second magnetic conductive body bonded to the second magnetic body, and the second equalizing hole passes through the second magnetic body and the second magnetic conductive body.

6. The loudspeaker with a built-in pressure equalization channel according to claim 5, characterized in that: The second magnetic component further includes a third magnetic body, the third magnetic body is bonded to the second magnetic conductive body, and the second pressure equalizing hole passes through the third magnetic body.

7. The loudspeaker with a built-in pressure equalization channel according to claim 1, characterized in that: The cover is provided with a plurality of tuning holes.

8. The loudspeaker with a built-in pressure equalization channel according to claim 7, characterized in that: The tuning holes are distributed around the third pressure equalizing hole at equal angles.

9. The loudspeaker with a built-in pressure equalization channel according to claim 1, characterized in that: The loudspeaker with a built-in pressure equalizing channel also includes a tuning mesh, which is bonded to the cover.

10. A headset, characterized in that: A loudspeaker comprising the built-in pressure equalization channel according to any one of claims 1 to 9.

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