Insulator for audio equipment

The insulator with a damping oil and ceramic balls addresses the insufficient absorption and instability issues of existing audio equipment insulators by converting vibration energy into heat, ensuring stable and effective vibration isolation.

JP2026010635AActive Publication Date: 2026-01-22黄一航
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Patent Information

Application Number
JP2025002601
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-01-22
Estimated Expiration
2045-01-08

AI Technical Summary

Technical Problem

Existing audio equipment insulators with spring structures fail to provide sufficient vibration absorption and often cause instability, leading to shaking and degradation of sound quality and performance.

Method used

An insulator for audio equipment featuring a working chamber filled with damping oil and ceramic balls that absorb vibration energy through ripple generation, eliminating the need for a spring structure and ensuring stable assembly.

Benefits of technology

The insulator effectively converts vibration energy into heat, providing robust vibration isolation and preventing shaking, thus enhancing sound quality and equipment stability.

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Abstract

The present invention provides an insulator for audio equipment.SOLUTION: The present invention relates to the technical field of audio shock absorption. The shock absorber includes an insulator body fixedly connected to the bottom of the sound equipment, a working chamber is provided in the insulator body, and damping oil and at least one ceramic ball are filled in the working chamber. When the audio equipment is subjected to vibration, the vibration is transmitted to the insulator body, so that the ceramic ball moves in the working chamber to generate ripples in the damping oil. The ripples absorb vibration energy and reduce the vibration energy, thereby realizing vibration isolation. To improve the problem that the vibration absorbing effect of an existing insulator is not preferable, and the insulator easily swings and is disadvantageous to use by a user.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to the technical field of audio shock absorption, and more particularly to an insulator for audio equipment. [Background technology]

[0002] As is well known, vibrations affect audio equipment, and excessive vibrations can impair sound quality, resulting in reduced resolution, poor clarity, and even increased noise. Furthermore, vibrations can also affect the performance and lifespan of components and parts. Therefore, existing audio equipment generally uses insulators for vibration isolation, isolating low-frequency waves transmitted through the ground and preventing resonance from occurring in the low-frequency waves and audio equipment. Furthermore, insulators can shift the resonance point of the equipment, changing the resonance coefficient of the audio equipment itself and preventing low-frequency waves from interfering with the audio equipment through the air. However, the majority of insulators used in existing audio equipment have a spring structure and rely on the elasticity of the spring to absorb and isolate vibrations. This type of structure often does not provide sufficient absorption, easily degrading the performance of the equipment. Furthermore, when a spring-structured insulator is connected to an audio equipment, the audio equipment is in an unstable state, causing it to easily shake, which is inconvenient for users. Summary of the Invention [Problem to be solved by the invention]

[0003] The present invention discloses an insulator for audio equipment, and aims to improve the problem that the vibration absorption effect of existing insulators is not good, and they easily shake, which is disadvantageous for users to use. [Means for solving the problem]

[0004] The present invention employs the following scheme. The insulator for audio equipment is fixedly connected to the bottom of the audio equipment. It includes an insulator body, a working chamber provided within the insulator body, and a damping oil and at least one ceramic ball filled within the working chamber. When the audio equipment is subjected to vibration, the vibration is transmitted to the insulator body, causing the ceramic ball to move within the working chamber and generating ripples in the damping oil. The ripples absorb and reduce the vibration energy, thereby achieving vibration isolation.

[0005] Preferably, the insulator body includes an upper housing and a lower housing, the upper housing having a connecting portion extending downward and an accommodating hole provided along the axial direction of the connecting portion, an assembly hole provided in the lower housing, the connecting portion being inserted into the assembly hole and positioned within the assembly hole, whereby the accommodating hole is mated with an inner wall of the assembly hole to form the working chamber.

[0006] Preferably, the connecting portion has a columnar shape, and a position limiting groove is formed annularly along the outer wall of the connecting portion. The lower housing has a mounting hole extending from the side wall toward the assembly hole, and the mounting hole is used for connecting with a fastener. The fastener enters the position limiting groove, and the position of the upper housing is limited along its axial direction.

[0007] Preferably, the mounting hole is a stepped hole including a straight portion and a threaded portion. The straight portion is located near the outer wall of the lower housing, and a steel ball is disposed therein to seal the mounting hole. The threaded portion is used for connecting with a fastener.

[0008] Preferably, a decorative groove is provided in the outer wall of the lower housing along the circumferential direction thereof, and the width of the decorative groove is smaller than the diameter of the mounting hole.

[0009] Preferably, a screw hole is provided at one end of the upper housing remote from the connection portion, and the screw hole is connected to an audio device by a screw connection part.

[0010] Preferably, a chamfer is provided at one end of the connecting portion on the receiving hole side.

[0011] Preferably, the ceramic ball has a diameter of 8 mm.

[0012] Preferably, the ceramic ball is made of silicon nitride (Si3N4).

[0013] Preferably, the material of the insulator body is stainless steel. [Effects of the Invention]

[0014] By adopting the above technical solution, the present invention can achieve the following technical effects: 1. In this application, when an audio device is subjected to vibration, the vibration is transmitted to the ceramic ball, which moves within the chamber, causing ripples in the damping oil. The ripples absorb the vibration energy, and as the ripples disappear, the vibration energy is effectively converted into heat energy and other forms of energy that do not affect the audio device.

[0015] 2. The use of ceramic balls with high hardness, low thermal expansion, excellent wear resistance, and excellent vibration damping properties, and damping oil with high thermal stability and consistent damping properties over a wide temperature range, creates a good damping effect in the working chamber and provides sufficient vibration absorption. Multiple ceramic balls can be placed in the working chamber, and the friction and collision between the ceramic balls during the vibration process can increase the vibration damping effect, achieving multiple vibration damping.

[0016] 3. There is no need to use a spring structure inside the insulator body, which allows the audio equipment to be stably assembled and prevents the audio equipment from shaking relative to the insulator, making it convenient for users to use. Specifically, the insulator body can be fixedly connected to the audio equipment using screw-type connecting parts.

[0017] In order to more clearly explain the technical solutions of the embodiments of the present invention, the following will briefly explain the figures that need to be used in the embodiments. It should be understood that the following figures only illustrate some examples of the present invention and therefore should not be considered as limiting the scope. Those skilled in the art can also obtain other related figures based on these figures without any creative work. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a structural schematic diagram of one viewing angle in one embodiment of the present invention. [Figure 2] FIG. 2 is a structural schematic diagram of different viewing angles in one embodiment of the present invention. [Figure 3] FIG. 3 is a structural schematic diagram of different viewing angles in one embodiment of the present invention. [Figure 4] FIG. 4 is a cross-sectional view of one embodiment of the present invention. [Figure 5] FIG. 5 is a structural schematic diagram of one viewing angle of the lower housing in one embodiment of the present invention. [Figure 6] FIG. 6 is a structural schematic diagram of the lower housing at different viewing angles in one embodiment of the present invention. [Figure 7] FIG. 7 is a structural schematic diagram of one viewing angle of the upper housing in one embodiment of the present invention. [Figure 8] FIG. 8 is a structural schematic diagram of the upper housing at different viewing angles in one embodiment of the present invention. [Figure 9] FIG. 9 is an exploded view of one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to clarify the objectives, technical solutions, and advantages of the embodiments of the present invention, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in combination with the drawings of the embodiments of the present invention. It is clear that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative work are also within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative work are also within the scope of protection of the present invention. [Example]

[0020] Combining Figures 1 to 9, this embodiment provides an insulator for audio equipment that is fixedly connected to the bottom of the audio equipment. It includes an insulator body 1, within which an operating chamber 11 is provided, and which is filled with damping oil 3 and at least one ceramic ball 2. When the audio equipment is subjected to vibrations, the vibrations are transmitted to the insulator body 1, causing the ceramic ball 2 to move within the operating chamber 11 and generating ripples in the damping oil 3. The ripples absorb and reduce the vibration energy, thereby achieving vibration isolation.

[0021] For example, one ceramic ball 2 is placed in the working chamber 11. The ceramic ball 2 has a diameter of 8 mm and is preferably made of silicon nitride (Si3N4) or an equivalent high-hardness, low-density ceramic. The damping oil 3 is preferably silicone oil, with a viscosity of 15,000 cSt at 25°C. The ceramic ball 2 has high hardness, low thermal expansion, excellent wear resistance, and excellent vibration damping properties, and the damping oil 3 has high thermal stability and consistent damping properties over a wide temperature range. This provides a good damping effect in the working chamber 11 and sufficient vibration absorption capacity. In other embodiments, multiple ceramic balls 2 can be placed in the working chamber 11. During vibration, friction and collision between the ceramic balls 2 can enhance the vibration damping effect, achieving multiple vibration damping.

[0022] It should be noted that when the ceramic ball 2 moves and generates ripples in the damping oil 3, the friction within the damping oil 3 resists this type of movement, resulting in a very small ripple width. Higher viscosity oils have greater internal friction, meaning they can absorb more vibration energy and dissipate it in the form of heat. Furthermore, the viscosity of the oil also determines the rate at which ripples decay or weaken. Ripples in higher viscosity oils decay faster, meaning that ripples generated by the vibrating ceramic ball 2 decay more quickly. Vibration energy can also be rapidly converted into heat and dissipated in the liquid, preventing it from being transmitted to the audio equipment. Viscosity also plays a role in oil processing and its ability to dissipate heat energy. High-viscosity oils typically have better thermal stability, allowing them to absorb more energy without significantly changing their damping properties, ensuring consistent performance even under continuous or high-energy vibration conditions. To summarize the above, high viscosity oils have a more favorable effect on damping low frequency vibrations because they offer greater resistance to slow moving ripples, making them suitable for use in equipment that needs to be insulated from low frequencies. Medium viscosity oils can be applied to a wider frequency range and can absorb energy effectively, but may overly dampen high frequency vibrations that may be important in the equipment.

[0023] In a preferred embodiment, the insulator body 1 includes an upper housing 12 and a lower housing 13. The upper housing 12 has a connecting portion 121 extending downward, and a receiving hole 122 is provided along the axial direction of the connecting portion 121. The lower housing 13 has an assembly hole 131, and the connecting portion 121 is inserted into the assembly hole 131 and positioned therein, thereby combining the receiving hole 122 with the inner wall of the assembly hole 131 to form an operating chamber 11. The size of the operating chamber 11 is large enough to allow the ceramic balls 2 to move and the damping oil 3 to generate ripples. Preferably, the material of the insulator body 1 is stainless steel or other durable, non-reactive material. For example, both the upper housing 12 and the lower housing 13 are made of stainless steel to prevent the operating chamber 11 from reacting with the damping oil 3 and ensure the damping effect of the damping oil 3.

[0024] Furthermore, the connecting portion 121 has a columnar shape, and a position limiting groove 123 is formed annularly along the outer wall of the connecting portion 121. The lower housing 13 has an attachment hole 132 penetrating from the side wall toward the assembly hole 131, and the attachment hole 132 is used to connect with the fastener 14. The fastener 14 enters the position limiting groove 123, and the position of the upper housing 12 is limited along its axial direction. In one embodiment, the attachment hole 132 is a stepped hole including a straight portion and a threaded portion. The straight portion is formed near the outer wall of the lower housing 13, and further includes a steel ball 15 used to seal the attachment hole 132, and the threaded portion is used to connect with the fastener 14. For example, the hole diameter of the straight portion is larger than the hole diameter of the threaded portion, and the fastener 14 is a hexagon socket head bolt. To install the components, first align and insert the connecting portion 121 of the upper housing 12 into the assembly hole 131 of the lower housing 13. Then, fasten a hexagon socket head bolt to the threaded portion along the mounting hole 132 in the side wall of the lower housing 13. At the same time, insert the hexagon socket head bolt into the position limiting groove 123 and abut against the wall of the position limiting groove 123, thereby limiting and fixing the position of the upper housing 12. Finally, insert steel balls 15 into the straight portion of the mounting hole 132 to seal the mounting hole 132 and prevent leakage of the damping oil 3. Preferably, a chamfer 124 is provided on one end of the connecting portion 121 facing the receiving hole 122, which facilitates fitting the connecting portion 121 into the receiving hole 122 and simplifies installation.

[0025] Based on the above embodiment, in any embodiment of the present invention, a decorative groove 133 is provided along the circumferential direction of the outer wall of the lower housing 13, and the width of the decorative groove 133 is smaller than the diameter of the mounting hole 132. In one embodiment, the decorative groove 133 passes through the mounting hole 132, and the color of the decorative groove 133 is made different from the color of the outer wall surface of the lower housing 13 to enhance the aesthetic appearance of the insulator. In another embodiment, the thickness of the upper housing 12 exposed from the lower housing 13 is made the same as the height from the decorative groove 133 to the top surface of the lower housing 13 to enhance the overall appearance of the insulator, but this is not limited to this and is not specifically limited.

[0026] In another embodiment, a threaded hole 125 is provided at one end of the upper housing 12 remote from the connecting portion 121, and the threaded hole 125 is connected to the audio equipment by a threaded connecting part 4. The threaded connecting part 4 can be designed with a large end and a small end, with the large end being used to connect to the threaded hole 125 and the small end being used to connect to the audio equipment. When installing, the large end can be fastened to the threaded hole 125 and then the small end can be attached to the audio equipment, which is convenient. Furthermore, the fixed connection by the threaded connecting part 4 ensures a stable assembly of the audio equipment and prevents the audio equipment from shaking relative to the insulator, making it convenient for users to use.

[0027] The above are merely preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above embodiments, and all technical solutions within the concept of the present invention are included in the scope of protection of the present invention. [Explanation of symbols]

[0028] 1 Insulator body 11 Working chamber 12 Upper housing 121 Connection 122 Receiving hole 123 Position limiting groove 124 Chamfered part 125 screw hole 13 Lower housing 131 Assembly hole 132 Mounting hole 133 Decorative groove 14 Fixtures 15 steel ball 2 ceramic balls 3 Damping oil 4 Threaded connection parts

Claims

1. An insulator for audio equipment, which is fixedly connected to a bottom of the audio equipment, comprises an insulator body, an action chamber provided within the insulator body, the action chamber being filled with damping oil and at least one ceramic ball; when the audio equipment is subjected to vibration, the vibration is transmitted to the insulator body, causing the ceramic ball to move within the action chamber and generating ripples in the damping oil, which absorb and reduce the vibration energy, thereby achieving vibration isolation.

2. 2. The insulator for audio equipment according to claim 1, characterized in that the insulator body includes an upper housing and a lower housing, the upper housing has a connecting portion extending downward, an accommodating hole is provided along the axial direction of the connecting portion, the lower housing has an assembly hole, the connecting portion is inserted into the assembly hole and its position is restricted, thereby combining the accommodating hole with the inner wall of the assembly hole to form the working chamber.

3. 3. An insulator for audio equipment as described in claim 2, characterized in that the connecting portion is columnar, a position limiting groove is provided in an annular shape along the outer wall of the connecting portion, a mounting hole is provided in the lower housing that penetrates from the side wall toward the assembly hole, the mounting hole is used to connect with a fixing device, the fixing device enters the position limiting groove, and the position of the upper housing is limited along its axial direction.

4. 4. An insulator for audio equipment as described in claim 3, wherein the mounting hole is a stepped hole including a straight portion and a threaded portion, the straight portion is provided near the outer wall of the lower housing, a steel ball is disposed therein for sealing the mounting hole, and the threaded portion is used for connecting with a fastener.

5. 5. An insulator for audio equipment according to claim 3, wherein a decorative groove is provided on the outer wall of said lower housing along its circumferential direction, and the width of said decorative groove is smaller than the diameter of said mounting hole.

6. 3. The insulator according to claim 2, wherein a screw hole is provided at one end of the upper housing remote from the connection portion, and the screw hole is connected to an audio device by a screw-in connection part.

7. 3. The insulator for audio equipment according to claim 2, wherein a chamfer is provided on one end of said connection portion on said receiving hole side.

8. 2. The insulator for audio equipment according to claim 1, wherein the ceramic ball has a diameter of 8 mm.

9. The material of the ceramic ball is silicon nitride (Si 3 N 4 2. The insulator for audio equipment according to claim 1, wherein the insulator is a

10. 2. The insulator for audio equipment according to claim 1, wherein the material of the insulator body is stainless steel.

Citation Information

Patent Citations

  • Installation jig for acoustic equipment

    JP1990054700A

  • Insulator

    JP2005024067A

  • Insulator and how to use insulator

    JP2006279178A

  • Support for acoustic equipment

    JP2012023538A

  • Audio device support and audio device

    JP2020031396A