Passive radiator assembly and audio device
By designing the high-gloss light guide surface and specific glossy surface structure in the passive radiator component of the audio, the problem of large loss of ambient light in the existing audio is solved, high brightness and uniform lighting effects are achieved, and user experience is improved.
Patent Information
- Application Number
- CN202421413715.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing audio with ambient light is not effectively created because the LED light group is set inside the shell, causing light to cause great light loss when it spreads, and the brightness is darker, making it impossible to effectively create a high-bright ambient light effect.
A passive radiator assembly is designed, including an annular suspension, a halo ring and a diaphragm. The outer peripheral wall of the halo ring is equipped with a high-light light guide surface, which reduces light loss by reflecting most of the incident light, and a raised and matte layer is provided at the inlet and light exit surfaces to enhance the scattering and diffuse reflection effect of light.
It effectively reduces the loss of light during the propagation process, improves the brightness and uniformity of the ambient light, enhances the visual impact and sense of atmosphere, and thus enhances the user's experience.
Smart Images
Figure CN222786071U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of audio equipment, in particular to a passive radiator component and an audio equipment. Background Art
[0002] As a common audio output device, audio is widely used in people's daily life. Audio refers to electronic devices used to play and amplify sound. It can convert electrical energy into sound energy, allowing us to hear music, voice and other sound content. The audio system usually includes signal source equipment, amplifiers, speakers, and possible various audio processing devices. These components work together to ensure that the sound is played in a high-quality format.
[0003] Passive speakers are a type of audio system that does not contain a built-in amplifier and requires an external amplifier or amplifier to provide enough power to drive the speaker. Passive speakers usually have passive radiators, which enhance the low-frequency output of the speaker. In order to create a different atmosphere to further enhance the user experience, designers usually add ambient lights to the speakers to create a more lively and interesting entertainment environment.
[0004] The existing speakers with atmosphere lights on the market have LED light groups used to generate the atmosphere light source arranged inside the speaker housing, and the speakers must also have waterproof properties and good sealing inside the housing. Therefore, light will produce greater light loss when propagating and is not easy to disperse. The light dispersed outside the housing is also dim due to the greater light loss. Utility Model Content
[0005] The main purpose of the utility model is to provide a passive radiator component and an audio device, aiming to provide an audio device with a high brightness and an ambient light that is not prone to light loss.
[0006] To achieve the above-mentioned purpose, the passive radiator assembly proposed by the utility model comprises:
[0007] An annular hanging portion, wherein the annular hanging portion is formed with a first mounting opening, and a peripheral edge of the first mounting opening is formed with an annular fitting surface inclined upward;
[0008] A light guide ring, wherein two end surfaces of the light guide ring opposite to each other in the axial direction of the first mounting port are respectively formed with a light entrance surface and a light exit surface, the light guide ring gradually expands from the light entrance surface to the light exit surface, and an outer peripheral wall of the light guide ring is formed with a high-light light guide surface, and at least a part of the structure of the high-light light guide surface is in contact with the annular fitting surface; and
[0009] The diaphragm is covered at one end of the light guide ring away from the light incident surface, and the light guide ring and the diaphragm are combined to form an air chamber with one end open.
[0010] In one embodiment, a light emitting surface inclined upward is formed on the outer peripheral wall of the light guide ring, and a matte layer is provided on the light emitting surface, and the matte layer is used to guide light toward the light receiving surface of the housing.
[0011] In one embodiment, an annular step is provided on the outer peripheral wall of the light guide ring, and the annular step abuts against the end of the first mounting opening for limiting position.
[0012] In one embodiment, an annular groove is formed on a side of the annular suspension portion facing the diaphragm.
[0013] In one embodiment, a plurality of positioning portions are provided at intervals on the outer peripheral wall of the annular hanging portion, and the positioning portions are provided with positioning holes, and the positioning holes are used for engaging with positioning posts of the housing for positioning.
[0014] In one embodiment, the light incident surface is provided with a plurality of protrusions, the plurality of protrusions are arranged in a ring at one end of the light guide ring, and the plurality of protrusions are arranged at even intervals; and / or
[0015] The high-light guiding surface is coated with a white high-reflective layer, and the annular bonding surface is bonded to the white high-reflective layer.
[0016] The utility model also provides an audio device, which comprises a shell and a passive radiator component.
[0017] In one embodiment, the shell forms a accommodating cavity, which is communicated with the air chamber, and both ends of the shell are respectively formed with inwardly recessed circular grooves, and the bottom of each circular groove is formed with a second mounting port; the annular hanging portion is adhered to the second mounting port and exposed at the second mounting port.
[0018] In one embodiment, a third mounting port is formed on one side of the shell, and the audio device also includes a mounting plate and a light source assembly, wherein the mounting plate is arranged at the third mounting port, and the light source assembly is arranged on the inner wall of the shell and is located below the passive radiator assembly.
[0019] In one embodiment, a bracket is provided on the inner side of the mounting plate facing the housing, and the light source assembly is provided on the bracket.
[0020] In the technical solution of the utility model, a passive radiator assembly and an audio device are proposed, wherein the passive radiator assembly includes an annular suspension part, a light guide ring and a diaphragm, the annular suspension part is formed with a first mounting port, the light guide ring is mounted on the first mounting port, the two ends of the light guide ring are respectively formed with a light incident surface and a light exit surface, the light guide ring gradually expands from the light incident surface to the light exit surface, the outer peripheral wall of the light guide ring is provided with a high light guiding surface, the light source is located at the lower part of the light guide ring, when the light source emits light, the light will first enter the gap between the light guide ring and the annular suspension part from the light incident surface, the high light guiding surface of the outer peripheral wall of the light guide ring will reflect the light, and then emit from the light exit surface, when the light hits the high light guiding surface, according to the material and characteristics of the surface, the light may be absorbed, reflected or transmitted. The high light guiding surface is usually made of a material with high reflectivity, so that most of the incident light can be reflected instead of absorbed or scattered, thereby reducing light loss, ensuring the high brightness of the atmosphere light, enhancing the visual impact, improving the atmosphere and thus enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0022] Figure 1 A schematic diagram of an exploded structure of an audio device according to an embodiment of the present utility model;
[0023] Figure 2 A schematic diagram of an exploded structure of an embodiment of a passive radiator assembly provided by the utility model;
[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the central light guide ring;
[0025] Figure 4 A schematic diagram of the structure of the audio device provided by the utility model;
[0026] Figure 5 A cross-sectional view of the audio device provided by the utility model;
[0027] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.
[0028] Description of Figure Numbers:
[0029] 100. Passive radiator assembly; 1. Annular suspension portion; 11. First mounting port; 12. Annular fitting surface; 13. Annular groove; 14. Positioning portion; 2. Light guide ring; 21. Light incident surface; 211. Protrusion; 22. Light emitting surface; 221. Matt layer; 23. High-light guiding surface; 231. White high-reflective layer; 24. Annular step; 2a. Air chamber; 3. Diaphragm.
[0030] 1000. audio device; 4. housing; 41. circular groove; 42. adjustment portion; 4a. mounting cavity; 5. mounting plate; 51. bracket; 6. light source assembly; 61. LED lamp; 7. active drive unit.
[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0035] As a common audio output device, audio is widely used in people's daily life. Audio refers to electronic devices used to play and amplify sound. It can convert electrical energy into sound energy, allowing us to hear music, voice and other sound content. The audio system usually includes signal source equipment, amplifiers, speakers, and possible various audio processing devices. These components work together to ensure that the sound is played in a high-quality format.
[0036] Passive speakers are a type of audio system that does not contain a built-in amplifier and requires an external amplifier or amplifier to provide enough power to drive the speaker. Passive speakers usually have passive radiators, which enhance the low-frequency output of the speaker. In order to create a different atmosphere to further enhance the user experience, designers usually add ambient lights to the speakers to create a more lively and interesting entertainment environment.
[0037] The existing speakers with atmosphere lights on the market have LED light groups used to generate the atmosphere light source arranged inside the speaker housing, and the speakers must also have waterproof properties and good sealing inside the housing. Therefore, light will produce greater light loss when propagating and is not easy to disperse. The light dispersed outside the housing is also dim due to the greater light loss.
[0038] In order to solve the above problems, the utility model proposes a passive radiator assembly, aiming to provide an audio device with high brightness and less light loss in the ambient light. Figures 1 to 6 A schematic structural diagram of an embodiment of a passive radiator assembly provided by the utility model.
[0039] Please refer to Figures 1 to 6 The utility model proposes a passive radiator component 100, including an annular suspension part 1, a light guide ring 2 and a diaphragm 3, the annular suspension part 1 is formed with a first mounting opening 11, the periphery of the first mounting opening 11 is formed with an annular fitting surface 12 inclined upward, the two end surfaces of the light guide ring 2 oppositely distributed along the axial direction of the first mounting opening 11 are respectively formed with a light entrance surface 21 and a light exit surface 22, the light guide ring 2 gradually expands from the light entrance surface 21 to the light exit surface 22, the outer peripheral wall of the light guide ring 2 is formed with a high-light light guiding surface 23, at least part of the structure of the high-light light guiding surface 23 is in contact with the annular fitting surface 12, the diaphragm 3 is covered at one end of the light guide ring 2 away from the light entrance surface 21, and the light guide ring 2 and the diaphragm 3 enclose an air chamber 2a with an open end.
[0040] In the technical solution of the utility model, a passive radiator assembly 100 and an audio device 1000 are proposed, wherein the passive radiator assembly 100 includes an annular suspension portion 1, a light guide ring 2 and a diaphragm 3, the annular suspension portion is formed with a first mounting port 11, the light guide ring 2 is mounted on the first mounting port 11, a light entrance surface 21 and a light exit surface 22 are respectively formed at both ends of the light guide ring 2, the light guide ring 2 gradually expands from the light entrance surface 21 to the light exit surface 22, the outer peripheral wall of the light guide ring 2 is provided with a high-light guiding surface 23, the light source is located at the lower part of the light guide ring 2, when the light source emits light, the light will first enter the gap between the light guide ring 2 and the annular suspension portion 1 from the light entrance surface 21, the high-light guiding surface 23 of the outer peripheral wall of the light guide ring 2 will reflect the light, and then emit it from the light exit surface 22, when the light hits the high-light guiding surface 23, the light may be absorbed, reflected or transmitted. The high-light guiding surface 23 is usually made of a material with high reflectivity, so that most of the incident light can be reflected instead of being absorbed or scattered, thereby reducing light loss, ensuring the high brightness of the atmosphere light, enhancing the visual impact, improving the atmosphere and thus improving the user experience.
[0041] When light is irradiated to the light incident surface 21, the light incident surface 21 will refract the light to obtain the final brightness required by the ambient light. In order to make the ambient light softer, the light incident surface 21 is provided with a plurality of protrusions. It should be noted that the protrusions may be sawtooth-shaped or semicircular-shaped, or the light incident surface 21 may be rough and uneven in microscopic structure on the surface. The present invention does not limit this. In one embodiment of the present invention, the protrusions are sawtooth-shaped. For details, please refer to Figure 3 The sawtooth-shaped light incident surface 21 is designed to have a rough surface, which can produce a scattering effect. When light passes through the sawtooth-shaped light incident surface 21, it will be refracted and reflected multiple times on its microscopic uneven surface. These refractions and reflections will cause the light to diverge at different angles, thereby creating a soft and uniform lighting effect. Compared with a smooth light incident surface 21, the scattering effect of the sawtooth-shaped light incident surface 21 can reduce glaring light spots and strong shadows, provide a more comfortable and natural light environment, and make the lighting of the ambient light softer.
[0042] In one embodiment of the present invention, in order to reduce the light loss caused by the light passing through the housing 4 of the audio device 1000, the high light guide surface 23 is coated with a white high reflective layer 231. For details, please refer to Figure 3The white high-reflective layer 231 is a white high-reflective paint, which is attached to the high-light guiding surface 23 by brushing. The white high-reflective paint has a high reflectivity and scattering effect. White paint can reflect most wavelengths of light and absorb very little, which means that the light emitted from the light source is less lost when passing through the white high-reflective layer 231, thereby improving the efficiency of light transmission. In addition, the design of the white high-light-conducting surface coating usually includes tiny structures, which cause the light to be reflected and scattered multiple times after entering the coating, increase the propagation path of the light inside the coating, and further reduce the loss of light. The white coating is selected because white can reflect almost all wavelengths of visible light without losing energy due to absorbing light of specific wavelengths. In addition, white gives people a clean and bright feeling, which is very popular in the application of atmosphere lights. Therefore, the white high-light-conducting surface coating is an effective design choice for achieving efficient and uniform lighting. Furthermore, in order to improve the sealing performance inside the audio device 1000, the annular fitting surface 12 is bonded to the white high-reflective layer 231 and sealed with a sealant, thereby maintaining good sealing inside the shell 4 and preventing water vapor from entering the shell 4 and causing damage to internal components.
[0043] In order to make the light reflected from the housing 4 softer and thus make the user's visual sense more comfortable, the outer peripheral wall of the light guide ring 2 is formed with a light emitting surface 22 inclined upward. For details, please refer to Figure 2 , a matte layer 221 is provided on the light emitting surface 22. The matte layer 221 is provided on the light emitting surface 22, so that the ambient light emitted by the light source is softer, which is based on the principle of light scattering and diffuse reflection. The matte layer 221 has a rough or irregular surface. When the light passes through, it will be reflected and refracted multiple times in different directions, so that the light is dispersed, reducing the concentration and brightness of the light, thereby creating a soft and uniform lighting effect. This diffuse reflection effect can effectively reduce glare and provide a more comfortable and natural light environment, thereby reducing visual fatigue and discomfort. At the same time, the soft light can create a relaxed and warm atmosphere and improve the comfort of living and working. In addition, the uniform lighting effect can also beautify the space and enhance the overall decorative effect.
[0044] In order to achieve better sealing inside the shell 4, the diaphragm 3 and the annular suspension part 1 are ultrasonically welded. Ultrasonic welding is a method of connecting the diaphragm 3 and the annular suspension part 1 together by using ultrasonic vibration. The principle is to use the vibration energy generated by the ultrasonic generator, which is transmitted to the welding head through the transducer, and the welding head applies the vibration energy to the joint surface of the diaphragm 3 and the annular suspension part 1. Under the action of ultrasonic waves, the joint surface of the diaphragm 3 and the annular suspension part 1 quickly generates heat by friction, causing the plastic surface to melt. As pressure is applied, the molten plastic is squeezed and fused together, and a solid welding point is formed after cooling. Ultrasonic welding can be completed within a few seconds, which improves production efficiency. Since no adhesive is used, no harmful substances are produced, which meets environmental protection requirements. In addition, ultrasonic welding can also ensure the strength and sealing of the joint, which is suitable for the manufacture of audio equipment, especially in applications requiring high-precision and high-quality welding.
[0045] In order to ensure reliable installation of the light guide ring 2 and the annular suspension part 1, an annular step 24 is provided on the outer peripheral wall of the light guide ring 2. For details, please refer to Figure 3 After the light guide ring 2 is assembled with the annular suspension part 1, the annular step 24 of the light guide ring 2 abuts against the end of the first mounting opening 11 for limiting position. The annular step 24 provides a simple and effective positioning and fixing method, which can prevent the light guide ring 2 from relative movement in a specific direction, thereby ensuring the relative position stability between the light guide ring 2 and the annular suspension part 1. This structure can not only improve the accuracy of assembly, but also enhance the stability and reliability of the entire system. In addition, the design of the abutment of the annular step 24 is generally easy to manufacture and install, and has low maintenance costs. An annular groove 13 is formed on the side of the annular suspension part 1 facing the diaphragm 3, and the annular step 24 is accommodated in the annular groove 13 and abuts against the end of the first mounting opening 11 for limiting position, thereby preventing the light guide ring 2 from shaking relative to the annular suspension part 1.
[0046] Furthermore, in order to achieve the installation of the passive radiator assembly 100, that is, to fix the passive radiator assembly 100 on the shell 4 of the audio device 1000, a plurality of positioning portions 14 are provided at intervals on the outer wall of the annular suspension portion 1, and each positioning portion 14 is provided with a positioning hole. The annular suspension portion 1 is snap-connected and positioned with the positioning columns on the shell 4 through the plurality of positioning holes, thereby achieving the installation and fixation of the passive radiator assembly 100.
[0047] The present utility model also proposes an audio device 1000, which includes a shell 4, a passive radiator assembly 100 and a light source assembly 6. The shell 4 is formed with a receiving cavity, which is connected to the air chamber 2a. Both ends of the shell 4 are respectively formed with inwardly recessed circular grooves 41, and the bottom of each circular groove 41 is formed with a second mounting port. The annular suspension portion 1 is glued to the second mounting port and exposed at the second mounting port. The light source assembly 6 is arranged on the inner wall of the shell 4 and is located below the passive radiator assembly 100. The specific structure of the audio device 1000 refers to the above-mentioned embodiment. Since the audio device 1000 adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.
[0048] In the technical solution of the present utility model, the audio device 1000 further includes a mounting plate 5. A third mounting opening is formed on one side of the housing 4. The mounting plate 5 is arranged at the third mounting opening. For details, please refer to Figure 1 , the mounting plate 5 is provided with a bracket 51 on the inner side of the housing 4, and the light source assembly 6 is arranged on the bracket 51. Compared with installing the atmosphere light source on the passive radiator assembly 100, installing the light source assembly 6 alone on the bracket 51 can prevent the atmosphere light height from substantially changing during the movement of the passive radiator, and can also reduce the overall mass of the passive radiator assembly 100 so that the passive radiator assembly 100 can meet the relevant acoustic requirements. Furthermore, the light source assembly 6 is composed of a plurality of LED lamps, and the LED lamps are arranged toward the passive radiator assembly 100. In the technical solution of the utility model, the atmosphere light has a breathing effect, which can be based on the rhythm of the sound emitted by the speaker. The breathing effect is usually achieved by controlling the brightness of the LED lamp. This effect imitates the rhythm of breathing. By adjusting the width of the pulse (i.e., the ratio of the time when the LED is powered on to the time when it is powered off), the brightness of the LED can be accurately controlled. When the duty cycle of the PWM signal changes, the brightness of the LED will also gradually change accordingly, thereby achieving a breathing effect.
[0049] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A passive radiator assembly, characterized in that: include: An annular hanging portion, wherein the annular hanging portion is formed with a first mounting opening, and a peripheral edge of the first mounting opening is formed with an annular fitting surface inclined upward; A light guide ring, wherein two end surfaces of the light guide ring opposite to each other in the axial direction of the first mounting port are respectively formed with a light entrance surface and a light exit surface, the light guide ring gradually expands from the light entrance surface to the light exit surface, and an outer peripheral wall of the light guide ring is formed with a high-light light guide surface, and at least a part of the structure of the high-light light guide surface is in contact with the annular fitting surface; and The diaphragm is covered at one end of the light guide ring away from the light incident surface, and the light guide ring and the diaphragm are combined to form an air chamber with one end open.
2. The passive radiator assembly according to claim 1, wherein: The outer peripheral wall of the light guide ring is formed with a light emitting surface inclined upward, and the light emitting surface is provided with a matte layer, and the matte layer is used for guiding light toward the light receiving surface of the shell.
3. The passive radiator assembly of claim 1, wherein: An annular step is provided on the outer peripheral wall of the light guide ring, and the annular step abuts against the end of the first mounting opening for limiting position.
4. The passive radiator assembly of claim 1, wherein: An annular groove is formed on a side of the annular suspension portion facing the diaphragm.
5. The passive radiator assembly of claim 1, wherein: A plurality of positioning parts are arranged at intervals on the outer peripheral wall of the annular suspension part. The positioning parts are provided with positioning holes, and the positioning holes are used for clamping and positioning with the positioning columns of the shell.
6. The passive radiator assembly of claim 1, wherein: The light incident surface is provided with a plurality of protrusions, the plurality of protrusions are arranged in a ring at one end of the light guide ring, and the plurality of protrusions are arranged at even intervals; and / or The high-light guiding surface is coated with a white high-reflective layer, and the annular bonding surface is bonded to the white high-reflective layer.
7. An audio device, characterized in that: The invention comprises a housing and the passive radiator assembly according to any one of claims 1 to 6.
8. The audio device according to claim 7, characterized in that The shell is formed with a containing cavity, which is communicated with the air chamber. Both ends of the shell are respectively formed with inwardly recessed circular grooves, and the bottom of each circular groove is formed with a second installation port; the annular hanging part is adhered to the second installation port and exposed at the second installation port.
9. The audio device according to claim 8, characterized in that A third mounting opening is formed on one side of the shell, and the audio device also includes a mounting plate and a light source assembly, wherein the mounting plate is arranged at the third mounting opening, and the light source assembly is arranged on the inner wall of the shell and is located below the passive radiator assembly.
10. The audio device according to claim 9, characterized in that The mounting plate is provided with a bracket on the inner side facing the shell, and the light source assembly is arranged on the bracket.