Mounting structure of multi-unit earphone and multi-unit mixed earphone
By integrating a large-size woofer unit into the external mounting part of the headphones, and combining the fine pressure relief holes and limit structure, the contradiction between compactness and comfort of the multi-unit headphones is solved, achieving better low-frequency effects and sound quality consistency.
Patent Information
- Application Number
- CN202422160314.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-03
AI Technical Summary
Existing multi-unit headphones are difficult to integrate large-size woofers while maintaining compactness and wearing comfort, affecting the audio experience.
The external mounting part is added outside the cavity of traditional in-ear headphones, integrating a large-size woofer unit, and ensuring the air circulation and unit positioning inside the headphones through carefully designed pressure relief holes and limit structures. Combined with the coordination and cooperation of multiple speaker units, the sound wave transmission path is optimized.
It realizes the integration of large-size woofer units in compact headphones to provide better low-frequency effects while maintaining the comfort and sound quality of the headphones, improving the audio experience.
Smart Images
Figure CN223157205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of audio devices, and more particularly to an installation structure of a multi-unit headphone and a multi-unit hybrid headphone. Background Art
[0002] Currently, in the field of personal audio devices, as one of the most popular portable audio solutions, a single full-frequency speaker unit often has difficulty in balancing the clarity of high frequencies and the response ability of low frequencies when processing wide-band audio signals. To overcome this limitation, the prior art has introduced a multi-unit headphone system, which optimizes the sound quality performance by integrating multiple driver units with specific frequency response characteristics. For example, by combining a bass unit dedicated to low-frequency reproduction with units responsible for the mid-high frequency range, a more balanced sound output can be achieved.
[0003] In practical applications, if one wants to enhance the audio experience of the headphone, a large-sized bass unit is required to provide better low-frequency response and deeper bass effects; due to the physical size limitation of the large-sized bass unit, it is difficult to integrate existing multi-unit headphones while maintaining the compactness and wearing comfort of the headphones. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an installation structure of a multi-unit headphone and a multi-unit hybrid headphone, which adds an external installation part outside the cavity of a traditional in-ear headphone to integrate a large-sized bass unit and maintain the compactness and wearing comfort of the headphone.
[0005] To achieve the above purpose, the technical solution of the first aspect of the utility model provides an installation structure of a multi-unit headphone, including a main body, an installation part, and a cavity cover. An acoustic part is provided on one side of the main body. The installation part is arranged on the side of the main body away from the acoustic part and is detachably connected to the main body. A first cavity is provided on the side of the installation part away from the main body, and the outer side of the first cavity is hermetically connected to the cavity cover.
[0006] Further, a first pressure relief hole and a second pressure relief hole are respectively provided on the installation part. The first pressure relief hole and the second pressure relief hole are respectively arranged on the side of the installation part away from the first cavity. The first pressure relief hole is communicated with the first cavity, and the second pressure relief hole is communicated with the outside of the installation part.
[0007] Further, a third pressure relief hole and a fourth pressure relief hole are also provided on the installation part. The third pressure relief hole is arranged on the outside of the installation part and is communicated with the second pressure relief hole. The fourth pressure relief hole is arranged on the side wall of the first cavity.
[0008] Further, a limiting groove and a limiting portion are further provided on the mounting portion. The limiting groove is disposed in the first cavity, and the limiting portion is disposed on the periphery of the mounting portion. The limiting portion is matched with the main body, and the mounting portion is embedded in the main body through the limiting portion.
[0009] Further, a first limiting post is further provided on one side of the mounting portion close to the main body. The first limiting post is fixedly connected to the mounting portion, and a first through hole communicating with the third sound outlet is provided on the first limiting post.
[0010] Further, a second limiting post matched with the first limiting post is provided in the main body. The first limiting post and the second limiting post are detachably connected, and a second through hole communicating with the first through hole is provided on the second limiting post.
[0011] The technical solution of the second aspect of the present utility model provides a multi-unit hybrid earphone, including the mounting structure of the multi-unit earphone described in the technical solution of the first aspect of the present utility model. A first moving coil unit is provided in the first cavity, and a second cavity is provided on one side of the main body away from the sound output portion.
[0012] Further, a third cavity is provided in the second cavity, and a second moving coil unit is provided in the third cavity.
[0013] Further, a fourth cavity and a fifth cavity are respectively provided in the second cavity. A balanced armature unit is provided in the fourth cavity, and a planar unit is provided in the fifth cavity.
[0014] Further, a first sound outlet, a second sound outlet and a third sound outlet are respectively provided on the sound output portion. The first sound outlet is connected to the balanced armature unit through a channel, the second sound outlet is connected to the planar unit through a channel, and the third sound outlet is connected to the first cavity through a channel. Damping filters are respectively bonded in the channels of the first sound outlet, the second sound outlet and the third sound outlet.
[0015] The beneficial effects of the present utility model include:
[0016] 1. For the mounting structure of the multi-unit earphone and the multi-unit hybrid earphone provided by the present utility model, by providing a mounting portion on the outer side of the main body, arranging the large-size bass moving coil unit in the first cavity of the mounting portion, and arranging the remaining moving coil units in the main body, the space limitation received when the traditional in-ear earphone accommodates the large-size moving coil unit is overcome. While maintaining the compact space of the earphone main body, a large-size bass moving coil unit can be installed in the mounting portion, providing better low-frequency effects for the earphone. Description of the Drawings
[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments of the present utility model. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0018] Figure 1 An exploded schematic diagram of the multi-unit hybrid earphone provided by the embodiment of the present utility model;
[0019] Figure 2 An overall schematic diagram of the multi-unit hybrid earphone diagram provided by the embodiment of the present utility model;
[0020] Figure 3 A first schematic diagram of the main body part structure provided by the embodiment of the present utility model;
[0021] Figure 4 An overall structural schematic diagram of the installation part provided by the embodiment of the present utility model;
[0022] Figure 5 A schematic diagram of one side structure of the installation part provided by the embodiment of the present utility model;
[0023] Figure 6 A schematic diagram of the other side structure of the installation part provided by the embodiment of the present utility model;
[0024] Figure 7 A second schematic diagram of the main body part structure provided by the embodiment of the present utility model;
[0025] Figure 8 A third schematic diagram of the main body part structure provided by the embodiment of the present utility model;
[0026] Figure 9 A structural schematic diagram of the sound output part provided by the embodiment of the present utility model;
[0027] Figure 10 A first installation schematic diagram of the damping filter screen provided by the embodiment of the present utility model;
[0028] Figure 11 A second installation schematic diagram of the damping filter screen provided by the embodiment of the present utility model;
[0029] Icons: 100 - main body, 110 - second cavity, 111 - third cavity, 112 - fourth cavity, 113 - fifth cavity, 114 - balanced armature unit, 115 - flat plate unit, 116 - second limit post, 117 - second through hole, 120 - sound output part, 121 - first sound outlet, 122 - second sound outlet, 123 - third sound outlet, 130 - second moving coil unit, 200 - mounting part, 210 - first cavity, 211 - first pressure relief hole, 212 - second pressure relief hole, 213 - third pressure relief hole, 214 - fourth pressure relief hole, 215 - limit groove, 220 - first moving coil unit, 221 - limiting part, 230 - cavity cover, 240 - first limit post, 241 - first through hole, 300 - damping filter screen. Detailed implementation manners
[0030] The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0032] Please refer to Figures 1 to 9As shown in the figure, the technical solution of the first aspect of the present utility model provides an installation structure for a multi-unit earphone, including a main body 100, an installation part 200 and a cavity cover 230. An acoustic output part 120 is provided on one side of the main body 100. The installation part 200 is arranged on the side of the main body 100 away from the acoustic output part 120 and is detachably connected to the main body 100. A first cavity 210 is provided on the side of the installation part 200 away from the main body 100, and the outer side of the first cavity 210 is hermetically connected to the cavity cover 230. Specifically, a moving coil unit is a kind of earphone loudspeaker, which usually includes a voice coil, a magnet, a diaphragm, a frame and a suspension edge. Its principle is that when an audio signal passes through the voice coil, the current flowing in the voice coil will be affected by the Lorentz force in the magnetic field generated by the permanent magnet, causing the voice coil and its connected diaphragm to vibrate back and forth in the air cavity. In actual application, a large-sized moving coil unit can provide better bass effects. In this embodiment, the large-sized moving coil unit is arranged in the first cavity 210, and a conventional small-sized moving coil unit is arranged in the main body 100. For the multi-unit hybrid earphone provided in this embodiment, the acoustic output part 120 is used as the sound output end, and the installation part 200 and the main body 100 are preferably adhesively connected. By arranging the installation part 200 on the outer side of the main body 100, the large-sized bass moving coil unit is installed in the first cavity 210 of the installation part 200, and the traditional small-sized moving coil unit is arranged in the main body 100. In this way, the space limitation encountered when the traditional in-ear earphone accommodates a large-sized moving coil unit is overcome, and the direct increase in volume inside the earphone main body 100 is avoided. While maintaining the compact space of the earphone main body 100, a large-sized bass moving coil unit can be installed in the installation part 200, providing better low-frequency effects for the earphone.
[0033] Preferably, a first pressure relief hole 211 and a second pressure relief hole 212 are respectively provided on the mounting portion 200. The first pressure relief hole 211 and the second pressure relief hole 212 are respectively provided on the side of the mounting portion 200 away from the first cavity 210. The first pressure relief hole 211 communicates with the first cavity 210, and the second pressure relief hole 212 communicates with the outside of the mounting portion 200. A third pressure relief hole 213 and a fourth pressure relief hole 214 are further provided on the mounting portion 200. The third pressure relief hole 213 is provided on the outside of the mounting portion 200 and communicates with the second pressure relief hole 212. The fourth pressure relief hole 214 is provided on the side wall of the first cavity 210. Specifically, the first pressure relief hole 211 and the second pressure relief hole 212 are used to provide air circulation for the moving coil unit in the first cavity 210, thereby reducing the accumulation of internal pressure and ensuring the low-frequency sound effect. The first pressure relief hole 211 and the second pressure relief hole 212 are not only associated with the acoustic environment inside the mounting portion 200, but also communicate with the outside environment through the third pressure relief hole 213 and the fourth pressure relief hole 214, which helps to balance the internal and external air pressures and avoid acoustic interference caused by the air pressure difference. In this embodiment, by providing the first pressure relief hole 211, the second pressure relief hole 212, the third pressure relief hole 213 and the fourth pressure relief hole 214, the pressure relief channels in the earphone are ensured to be coordinated and consistent in acoustic effect. It should be noted that the design of the pressure relief hole needs to consider the sound propagation path to ensure that sound waves can flow freely in each cavity. The position, size and shape of the pressure relief hole can control the flow direction of sound waves and can be adjusted according to actual needs.
[0034] Preferably, a limiting groove 215 and a limiting portion 221 are further provided on the mounting portion 200. The limiting groove 215 is provided in the first cavity 210, and the limiting portion 221 is provided on the periphery of the mounting portion 200. The limiting portion 221 is matched with the main body 100, and the mounting portion 200 is embedded in the main body 100 through the limiting portion 221. Specifically, a limiting groove 215 that precisely matches the size of the large-size moving coil unit is machined on the inner wall of the first cavity 210. The size design of the limiting groove 215 needs to consider the diameter, thickness, and vibration range during operation of the large-size moving coil unit. For example, for the first moving coil unit 220, a limiting ring that matches the limiting groove 215 can be designed at the edge of the first moving coil unit 220. The limiting ring is specifically a flange. The first moving coil unit 220 is placed into the limiting groove 215 through the limiting ring, and it is ensured that the limiting portion 221 is completely embedded in the limiting groove 215. Then, an adhesive is used to bond the limiting ring and the limiting groove 215 to ensure that the first moving coil unit 220 is firmly fixed in the first cavity 210, thereby accurately positioning the first moving coil unit 220 and avoiding a decrease in sound quality caused by loosening or position deviation. On the other hand, a limiting portion 221 that matches the internal contour of the main body 100 needs to be machined on the periphery of the mounting portion 200. The limiting portion 221 is specifically an annular protrusion, and its specific shape depends on the internal structure of the main body 100. The mounting portion 200 can be embedded in the main body 100 through the limiting portion 221 to ensure the alignment accuracy between the two, thereby improving the structural stability.
[0035] Preferably, a first limiting post 240 is further provided on one side of the mounting part 200 close to the main body 100. The first limiting post 240 is fixedly connected to the mounting part 200. A first through hole 241 communicating with the third sound outlet 123 is provided on the first limiting post 240. A second limiting post 116 matching the first limiting post 240 is provided in the main body 100. The first limiting post 240 and the second limiting post 116 are detachably connected. A second through hole 117 communicating with the first through hole 241 is provided on the second limiting post 116. Specifically, in this embodiment, in order to further enhance the connection stability between the mounting part 200 and the main body 100 and optimize the sound wave transmission path, a first limiting post 240 is machined on one side of the mounting part 200 close to the main body 100, and a second limiting post 116 matching the first limiting post 240 is machined at a corresponding position in the main body 100. A second through hole 117 is provided on the second limiting post 116, and the second through hole 117 is aligned and communicated with the first through hole 241. The first limiting post 240 and the second limiting post 116 are detachably connected, for example, by screw connection, snap connection or embedded connection, which further ensures the stable connection between the mounting part 200 and the main body 100 and is also convenient for later maintenance and replacement. On the other hand, through the communication of the first through hole 241 and the second through hole 117, the sound wave can be directly transmitted to the moving coil unit in the mounting part 200, optimizing the sound wave transmission path and reducing the loss and interference of the sound wave during transmission.
[0036] The technical solution of the second aspect of the present invention provides a multi-unit hybrid earphone, including the mounting structure of the multi-unit earphone described in the technical solution of the first aspect of the present invention. A first moving coil unit 220 is provided in the first cavity 210, and a second cavity 110 is provided on one side of the main body 100 away from the sound output part 120.
[0037] Preferably, a third cavity 111 is provided in the second cavity 110, and a second moving coil unit 130 is provided in the third cavity 111. In this embodiment, the first moving coil unit 220 is a large-size moving coil unit, and the second moving coil unit 130 is a conventional small-size moving coil unit, realizing the integration of a large-size moving coil unit and a small-size moving coil unit.
[0038] Preferably, a fourth cavity 112 and a fifth cavity 113 are respectively provided in the second cavity 110. A balanced armature unit 114 is provided in the fourth cavity 112, and a flat panel unit 115 is provided in the fifth cavity 113. In this embodiment, the first moving coil unit 220, the balanced armature unit 114, and the flat panel unit 115 are integrated. The balanced armature unit 114 is a kind of micro speaker. Different from the traditional moving coil speaker or balanced armature unit 114, the flat panel unit 115 is based on the principle of planar magnetic drive. In the flat panel unit 115, a diaphragm made of ultra-thin material is sandwiched between two layers of strong magnetic fields. When an electric current passes through the conductive coil attached to the diaphragm, a Lorentz force will be generated, causing the entire diaphragm to vibrate and produce sound. By integrating three different types of speaker units, namely the large-sized moving coil unit, the balanced armature unit 114, and the flat panel unit 115, the earphone can achieve full-range audio coverage from low frequency to high frequency, ensuring the best reproduction effect for each frequency band. At the same time, although multiple units are integrated, due to the ingenious design of each cavity, the overall earphone still maintains a compact shape without affecting the wearing comfort. This multi-unit hybrid design can not only provide a richer and more realistic sound experience, but also adapt to different music styles and personal preferences, enhancing the user's auditory enjoyment.
[0039] Preferably, a first sound outlet 121, a second sound outlet 122, and a third sound outlet 123 are respectively provided on the sound output part 120. The first sound outlet 121 is connected to the balanced armature unit 114 through a channel, the second sound outlet 122 is connected to the flat panel unit 115 through a channel, and the third sound outlet 123 is connected to the first cavity 210 through a channel. Damping filter meshes 300 are respectively bonded in the channels of the first sound outlet 121, the second sound outlet 122, and the third sound outlet 123. Specifically, the first sound outlet 121 is connected to the balanced armature unit 114 through an internal channel and is responsible for the sound output in the middle and high frequency bands; the second sound outlet 122 is connected to the flat panel unit 115 through an internal channel and is responsible for the sound output from low frequency to middle frequency bands; the third sound outlet 123 is connected to the first moving coil unit 220 through an internal channel and is responsible for the sound output in the low frequency band. In this embodiment, by setting the first sound outlet 121, the second sound outlet 122, and the third sound outlet 123 and cooperating with the above-mentioned multiple pressure relief holes, the coordinated cooperation of different moving coil units is realized. By setting independent sound outlets and channels, the phase synchronization of the sound between different moving coil units can be ensured, avoiding the phase distortion problem caused by different sound wave propagation paths, thereby improving the consistency and naturalness of the sound. The density and material of the damping filter mesh 300 can be selected according to actual needs. By bonding the damping filter mesh 300, the transmission and attenuation of sound waves inside the earphone can be precisely controlled, thereby finely adjusting the overall frequency response of the earphone. Please refer to Figure 10 shown Figure 10Inside the first sound outlet 121, the second sound outlet 122, the third sound outlet 123, the first pressure relief hole 211, the second pressure relief hole 212, the third pressure relief hole 213, and the fourth pressure relief hole 214, a damping filter screen 300 can be installed inside the holes or channels; by pasting damping filter screens 300 with different densities or materials in these areas, the transmission and attenuation of sound waves inside the earphone can be precisely controlled, thereby finely adjusting the overall frequency response of the earphone; the sound of the earphone is transmitted from the first sound outlet 121, the second sound outlet 122, and the third sound outlet 123. Figure 11 Shown is a schematic diagram of the installation structure of the damping filter screen 300 in the double moving coil unit structure.
[0040] In summary, the multi-unit hybrid earphone provided by the present invention, through an innovative internal layout strategy, skillfully integrates a large-sized moving coil unit in the installation part 200 of the compact in-ear earphone, not only overcoming the limitations on the size of the earphone drive unit in the traditional earphone design, but also the internal structure of the earphone is carefully optimized to ensure the acoustic coordination and consistency of the sound propagation path and the pressure relief channel, thereby eliminating the problems of phase mismatch and uneven frequency response.
[0041] In addition to the above description, the following points need to be explained:
[0042] (1) The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.
[0043] (2) The control programs such as the balanced armature unit and the planar unit in the present disclosure are all mature and conventional technologies in the prior art. Those skilled in the art can implement the application of the present invention according to the principles of the same functions in the prior art. This program part is not the innovation point of the present invention.
[0044] (3) Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0045] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims
1. An installation structure of a multi-unit earphone, characterized in that, It includes a main body, a mounting part, and a cavity cover. One side of the main body is provided with a sound output part. The mounting part is arranged on the side of the main body away from the sound output part and is detachably connected to the main body. A first cavity is provided on the side of the mounting part away from the main body, and the outside of the first cavity is hermetically connected to the cavity cover.
2. The installation structure of the multi-unit earphone according to claim 1, characterized in that, The mounting part is respectively provided with a first pressure relief hole and a second pressure relief hole. The first pressure relief hole and the second pressure relief hole are respectively arranged on the side of the mounting part away from the first cavity. The first pressure relief hole is communicated with the first cavity, and the second pressure relief hole is communicated with the outside of the mounting part.
3. The mounting structure of the multi-unit earphone according to claim 2, characterized in that, The mounting part is further provided with a third pressure relief hole and a fourth pressure relief hole. The third pressure relief hole is arranged on the outside of the mounting part and is communicated with the second pressure relief hole. The fourth pressure relief hole is arranged on the side wall of the first cavity.
4. The mounting structure of the multi-unit earphone according to claim 1, characterized in that, The mounting part is further provided with a limiting groove and a limiting part. The limiting groove is arranged in the first cavity, and the limiting part is arranged on the periphery of the mounting part. The limiting part is matched with the main body, and the mounting part is embedded in the main body through the limiting part.
5. The mounting structure of the multi-unit earphone according to any one of claims 1 to 4, characterized in that The side of the mounting part close to the main body is further provided with a first limiting post. The first limiting post is fixedly connected to the mounting part, and a first through hole communicated with the third sound output port is provided on the first limiting post.
6. The mounting structure of the multi-unit earphone according to claim 5, characterized in that, A second limiting post matched with the first limiting post is arranged in the main body. The first limiting post and the second limiting post are detachably connected, and a second through hole communicated with the first through hole is provided on the second limiting post.
7. A multi-unit hybrid earphone, characterized in that, It includes the mounting structure of the multi-unit earphone according to any one of claims 1 to 6. A first moving coil unit is arranged in the first cavity, and a second cavity is provided on the side of the main body away from the sound output part.
8. The multi-unit hybrid earphone according to claim 7, characterized in that, A third cavity is provided in the second cavity, and a second moving coil unit is arranged in the third cavity.
9. The multi-unit hybrid earphone according to claim 7, wherein, A fourth cavity and a fifth cavity are respectively provided in the second cavity. A balanced armature unit is arranged in the fourth cavity, and a planar unit is arranged in the fifth cavity.
10. The multi-unit hybrid earphone according to claim 9, wherein, The sound output part is respectively provided with a first sound output port, a second sound output port, and a third sound output port. The first sound output port is connected to the balanced armature unit through a channel. The second sound output port is connected to the planar unit through a channel. The third sound output port is connected to the first cavity through a channel. Damping filter meshes are respectively bonded in the channels of the first sound output port, the second sound output port, and the third sound output port.