Anti-vibration capacitors

Abstract

The present invention relates to a seismic-resistant capacitor, comprising an outer shell, an inner shell, a buffer assembly, and a vibration-suppressing sleeve; the vibration-suppressing sleeve is an annular structure, the inner shell passes through the vibration-suppressing sleeve and slides with the vibration-suppressing sleeve, the outer wall of the vibration-suppressing sleeve is fixed to the corresponding inner wall of the outer shell to evenly divide the space between the outer shell and the inner shell, and the buffer assembly is symmetrically distributed between the outer shell and the inner shell about the vibration-suppressing sleeve to suppress the vibration of the inner shell. In the present invention, when the vibration of the inner shell cannot be completely suppressed by the buffer assembly, the vibration of the inner shell will move relative to the vibration-suppressing sleeve, that is, the inner shell moves repeatedly on both sides of the vibration-suppressing sleeve. When the inner shell moves toward one side of the vibration-suppressing sleeve, it squeezes the air or refrigerant in the space, thereby increasing the pressure and providing resistance to the movement of the inner shell; while the space on the other side increases due to the movement of the inner shell, generating negative pressure, which provides a pulling force on the movement of the inner shell, thereby suppressing the standing wave phenomenon.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitors, and in particular to a seismic-resistant capacitor. Background Art

[0002] Capacitors are devices that hold electrical charge and are typically mounted on circuit boards via terminals. During operation, capacitors are subject to influences from equipment, such as vibration or sound waves. These mechanical vibrations are transmitted to the capacitor, causing the dielectric or plates within it to vibrate. The repeated reflections of these vibrations create standing waves, which persist and can disrupt signals in surrounding circuits.

[0003] In order to avoid the vibration problem of the capacitor, vibration suppression of the core is usually adopted. For example, the invention patent with publication number CN113470972B suppresses the vibration of the core by bending and twisting the spring, and the retaining ring shakes with the shaking of the core, which is equivalent to increasing the dead weight of the shaking core, that is, increasing the kinetic energy generated by the shaking. As a result, the vibration suppression effect of the spring is not ideal, and the problem of repeated vibration reflection cannot be quickly and effectively suppressed. Summary of the Invention

[0004] The present invention addresses the deficiencies in the prior art and provides a seismic-resistant capacitor. The specific technical solution is as follows:

[0005] Seismic capacitors, including:

[0006] shell;

[0007] inner shell;

[0008] Cushioning components; and

[0009] Vibration suppression sleeve;

[0010] Among them, the vibration suppression sliding sleeve is an annular structure, the inner shell passes through the vibration suppression sliding sleeve and slides with the vibration suppression sliding sleeve, the outer wall of the vibration suppression sliding sleeve is fixed to the corresponding inner wall of the outer shell to evenly divide the space between the outer shell and the inner shell, and the buffer component is symmetrically distributed between the outer shell and the inner shell about the vibration suppression sliding sleeve to suppress the vibration of the inner shell.

[0011] To address the problem of repeated vibration reflection, the inner shell is placed inside the outer shell. When vibration is transmitted to the capacitor, the outer shell vibrates along with the device, causing the inner shell to vibrate as well. The buffer assembly mechanically dampens the vibration of the inner shell, preventing relative vibration between the inner and outer shells from forming standing waves.

[0012] Furthermore, the vibration-damping sleeve equally divides the space between the outer and inner shells. When the vibration of the inner shell cannot be completely suppressed by the buffer assembly, the vibration of the inner shell will move relative to the vibration-damping sleeve. That is, the inner shell moves repeatedly on both sides of the vibration-damping sleeve. When the inner shell moves toward one side of the vibration-damping sleeve, it squeezes the air or refrigerant in that space, increasing the pressure and providing resistance to the movement of the inner shell. Meanwhile, the space on the other side, due to the increase in space caused by the movement of the inner shell, generates negative pressure, which provides a pulling force for the movement of the inner shell. This, combined with the buffer assembly, quickly suppresses the relative vibration between the inner and outer shells and can also suppress standing waves.

[0013] As an improvement of the above technical solution, the buffer assembly includes:

[0014] an elastic sheet, the elastic sheet being wavy in shape, with both ends extending into the slots on the inner wall of the housing;

[0015] The elastic sheet has at least two arc-shaped protrusions located in the limiting grooves on the outer wall of the inner shell.

[0016] The elastic sheets are distributed on both sides of the inner shell and are arranged relative to the vibration-damping sleeve. When the inner shell vibrates, due to the restraint of the vibration-damping sleeve, the shaking of the inner shell will act on the elastic sheets on both sides, and the elastic sheets exert a force to maintain the relative position of the inner shell and the outer shell.

[0017] The elastic sheet is arranged in a wavy structure, so that the deformation ability of the elastic sheet is better than that of a single arc or arch structure, and at least two arc-shaped protrusions act in the limiting grooves on the outer wall of the inner shell, so that the force exerted by the elastic sheet on the inner shell is balanced and stable. The limiting grooves can also limit the lateral displacement of the elastic sheet, so that the area where the elastic sheet acts on the inner shell is relatively constant.

[0018] As an improvement of the above technical solution, the buffer assembly further includes:

[0019] a first permanent magnet and a second permanent magnet;

[0020] The first permanent magnets are symmetrically distributed and embedded in the bottom surface of the inner shell, and the second permanent magnets are embedded in the inner bottom surface of the outer shell and correspond one-to-one with the first permanent magnets.

[0021] The first permanent magnet and the second permanent magnet repel each other.

[0022] The first permanent magnet and the second permanent magnet repel each other to suppress the vibration of the inner shell. The corresponding positions of the first permanent magnet and the second permanent magnet can ensure that the direction of the resultant force of the repulsive forces between the two is consistent with the length direction of the inner shell, thereby achieving a better vibration suppression effect.

[0023] As an improvement of the above technical solution, the buffer assembly further includes:

[0024] Encapsulated terminals, the encapsulated terminals are symmetrically distributed, and the portion of the encapsulated terminals located between the outer shell and the inner shell is spiral-shaped;

[0025] The bottom end of the package terminal is electrically connected to the electrode plate fixed in the inner shell, and the top end extends out of the outer shell.

[0026] By making the part of the package terminal located between the outer shell and the inner shell spiral, the package terminal can also play the role of spring shock absorption and buffering due to the force-bearing characteristics of the spiral structure itself. Combined with the mutual repulsion between the first permanent magnet and the second permanent magnet, and the sliding limiting effect of the vibration-suppressing sleeve on the inner shell, buffering and vibration suppression in the height direction are achieved.

[0027] One end of the package terminal is electrically connected to the fixed electrode plate to realize the charge storage function, and the other end extends out of the shell to be connected to the corresponding circuit to realize the corresponding circuit function.

[0028] As an improvement of the above technical solution, a plurality of installation grooves for placing the electrode plates are arranged on the inner wall of the inner shell. The top and bottom ends of the electrode plates are clearance-matched with the inner top and bottom walls of the inner shell to form a circulation channel for the flow of the medium.

[0029] By clamping the two ends of the electrode plate in the corresponding mounting grooves, the position of the electrode plate is fixed. When vibration occurs, the electrode plate cannot be displaced or vibrated relative to the inner shell, and can only vibrate or move synchronously with the inner shell, thereby simplifying the vibration complexity of the electrode plate and the internal medium.

[0030] The structure of the flow channel enables the medium to circulate inside the inner shell, thereby achieving uniform distribution of the medium, without being separated by the electrode plates into independent cavities, causing uneven distribution of the medium.

[0031] As an improvement of the above technical solution, an annular notch is provided on the inner wall surface of the vibration-suppressing sliding sleeve, and the opening of the annular notch is blocked by the outer surface of the inner shell to form a buffer cavity.

[0032] When the inner shell moves relative to the vibration-damping sleeve and causes squeezing on one side, the air or refrigerant in the area is compressed and transferred back to the negative pressure area on the other side. During the transfer, the air enters the annular groove to form a turbulent flow, which relatively increases the resistance to the movement of the inner shell. Combined with the pulling force of the negative pressure area on the inner shell and the thrust of the high pressure area on the inner shell, the movement of the inner shell relative to the vibration-damping sleeve will be suppressed very quickly, and thus tends to be relatively prohibited.

[0033] As an improvement to the above technical solution, a plurality of connectors for fixing the shell are distributed on the top of the shell.

[0034] The purpose of setting the connecting piece is to fix the housing and the device so that the connection position between the package terminal and the circuit is not completely stressed, thereby avoiding the risk of short circuit and ensuring that the circuit works stably when the device is in a vibrating state.

[0035] As an improvement to the above technical solution, the inner wall of the outer shell and the outer wall of the inner shell are both coated with a magnetic shielding layer.

[0036] The magnetic shielding layer is provided to avoid leakage and magnetic field interference problems, and to reduce or eliminate the mutual influence between the vibration of the outer shell and the inner shell and the magnetic field of the entire circuit.

[0037] Beneficial effects of the present invention:

[0038] 1. When vibration is transmitted to the capacitor, the outer shell vibrates along with the device, causing the inner shell to vibrate as well. At this time, the buffer component suppresses the vibration of the inner shell through its mechanical structure, preventing relative vibration between the inner and outer shells and forming a standing wave phenomenon.

[0039] 2. When the vibration of the inner shell cannot be completely suppressed by the buffer assembly, the inner shell will move relative to the vibration-suppressing sleeve. That is, the inner shell moves back and forth on both sides of the vibration-suppressing sleeve. When the inner shell moves toward one side of the vibration-suppressing sleeve, it squeezes the air or refrigerant in that space, increasing the pressure and providing resistance to the movement of the inner shell. Meanwhile, the space on the other side increases due to the movement of the inner shell, generating negative pressure, which exerts a pulling force on the movement of the inner shell. This, combined with the buffer assembly, quickly suppresses the relative vibration between the inner shell and the outer shell and suppresses standing waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A top view of the overall structure of the present invention;

[0041] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0042] Figure 3 It is a side view of the overall structure of the present invention;

[0043] Figure 4 for Figure 3 Cross-sectional view at the middle BB;

[0044] Figure 5 This is a diagram of the internal structure of the inner shell in the overall structure of the present invention.

[0045] Figure numerals: 100, outer shell; 110, slot; 120, connector; 200, inner shell; 210, limiting groove; 220, pole plate; 230, mounting groove; 300, buffer assembly; 310, elastic sheet; 320, first permanent magnet; 330, second permanent magnet; 340, package terminal; 400, vibration suppression sleeve; 410, annular notch. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] See also Figure 1-Figure 5 As shown, Figure 1 A top view of the overall structure of the present invention; Figure 2 for Figure 1 Cross-sectional view at AA in the middle; Figure 3 It is a side view of the overall structure of the present invention; Figure 4 for Figure 3 Cross-sectional view at the middle BB; Figure 5 This is a diagram of the internal structure of the inner shell in the overall structure of the present invention.

[0048] Capacitors are typically attached to equipment, so they are subject to influences from the equipment during use, such as vibration or sound waves. These mechanical vibrations are transmitted to the capacitor, causing the dielectric or plates within it to vibrate. The repeated reflections of these vibrations create standing waves, causing the vibration to persist and potentially disrupt surrounding circuit signals.

[0049] In order to solve the above technical problems, a seismic-resistant capacitor is proposed, which includes an outer shell 100 , an inner shell 200 , a buffer assembly 300 and a vibration-suppressing sliding sleeve 400 .

[0050] Among them, the vibration-suppressing sleeve 400 is an annular structure, the inner shell 200 passes through the vibration-suppressing sleeve 400 and slides with the vibration-suppressing sleeve 400, the outer wall of the vibration-suppressing sleeve 400 is fixed to the corresponding inner wall of the outer shell 100 to evenly divide the space between the outer shell 100 and the inner shell 200, and the buffer assembly 300 is symmetrically distributed between the outer shell 100 and the inner shell 200 about the vibration-suppressing sleeve 400 to suppress the vibration of the inner shell 200.

[0051] To address the problem of repeated vibration reflection, the inner housing 200 is placed inside the outer housing 100. When vibration is transmitted to the capacitor, the outer housing 100 vibrates along with the device, causing the inner housing 200 to vibrate as well. The buffer assembly 300 mechanically dampens the vibration of the inner housing 200, preventing relative vibration between the inner housing 200 and the outer housing 100 from forming standing waves.

[0052] Furthermore, the vibration-damping sleeve 400 evenly divides the space between the outer shell 100 and the inner shell 200. When the vibration of the inner shell 200 cannot be completely suppressed by the buffer assembly 300, the vibration of the inner shell 200 will move relative to the vibration-damping sleeve 400. That is, the inner shell 200 moves repeatedly on both sides of the vibration-damping sleeve 400. When the inner shell 200 moves toward one side of the vibration-damping sleeve 400, it squeezes the air or refrigerant in that space, increasing the pressure and providing resistance to the movement of the inner shell 200. Meanwhile, the space on the other side, which increases due to the movement of the inner shell 200, generates negative pressure, which provides a pulling force to the movement of the inner shell 200. This, combined with the buffer assembly 300, quickly suppresses the relative vibration between the inner shell 200 and the outer shell 100 and can also suppress standing waves.

[0053] See also Figure 2 and Figure 4 In one embodiment, the buffer assembly 300 includes:

[0054] The elastic piece 310 is wavy in shape, with both ends extending into the slots 110 on the inner wall of the housing 100;

[0055] At least two arc-shaped protrusions on the elastic piece 310 are located in the limiting groove 210 on the outer wall of the inner shell 200.

[0056] Specifically, elastic sheets 310 are arranged on both sides of the inner shell 200, relative to the vibration-damping sleeve 400. When the inner shell 200 vibrates, the vibration-damping sleeve 400 restricts the movement of the inner shell 200, which in turn exerts force on the elastic sheets 310 to maintain the relative position of the inner shell 200 and the outer shell 100.

[0057] The elastic sheet 310 is configured to have a wavy structure, so that the deformation ability of the elastic sheet 310 is better than that of a single arc or arch structure, and at least two arc-shaped protrusions act in the limiting groove 210 on the outer wall of the inner shell 200, so that the force exerted by the elastic sheet 310 on the inner shell 200 is balanced and stable. The limiting groove 210 can also limit the lateral displacement of the elastic sheet 310, so that the area where the elastic sheet 310 acts on the inner shell 200 is relatively constant.

[0058] In this embodiment, the elastic piece 310 may also be zigzag-shaped or M-shaped.

[0059] Continue to see Figure 2 In one embodiment, the buffer assembly 300 further includes:

[0060] A first permanent magnet 320 and a second permanent magnet 330;

[0061] The first permanent magnets 320 are symmetrically distributed and embedded in the bottom surface of the inner shell 200 , and the second permanent magnets 330 are embedded in the inner bottom surface of the outer shell 100 and correspond one-to-one with the first permanent magnets 320 ;

[0062] The first permanent magnet 320 and the second permanent magnet 330 repel each other.

[0063] The first permanent magnet 320 and the second permanent magnet 330 repel each other to suppress the vibration of the inner shell 200. The corresponding positions of the first permanent magnet 320 and the second permanent magnet 330 can ensure that the direction of the resultant force of their repulsive forces is consistent with the length direction of the inner shell 200, thereby achieving a better vibration suppression effect.

[0064] In this embodiment, the first and second are not specific, but are only used to distinguish the first permanent magnet 320 from the second permanent magnet 330 for easier understanding.

[0065] Furthermore, the first permanent magnet 320 and the second permanent magnet 330 are preferably in sheet form to reduce the space required for arrangement. Furthermore, the first permanent magnet 320 and the second permanent magnet 330 can be wound, if necessary and feasible, to achieve the same vibration suppression effect by utilizing the magnetic field repulsion generated when energized.

[0066] Continue to see Figure 2 In one embodiment, the buffer assembly 300 further includes:

[0067] The package terminals 340 are symmetrically distributed, and the portion of the package terminals 340 located between the outer shell 100 and the inner shell 200 is spiral-shaped;

[0068] The bottom end of the package terminal 340 is electrically connected to the electrode plate 220 fixed in the inner shell 200 , and the top end extends out of the outer shell 100 .

[0069] By making the part of the packaging terminal 340 located between the outer shell 100 and the inner shell 200 spiral, due to the force-bearing characteristics of the spiral structure itself, the packaging terminal 340 can also play the role of a spring shock absorber and buffer. Combined with the mutual repulsion of the first permanent magnet 320 and the second permanent magnet 330, and the sliding limiting effect of the vibration-suppressing sleeve 400 on the inner shell 200, buffering and vibration suppression in the height direction are achieved.

[0070] One end of the package terminal 340 is electrically connected to the fixed electrode plate 220 to realize the charge storage function, and the other end extends out of the housing 100 to be connected to the corresponding circuit to realize the corresponding circuit function.

[0071] In addition, the portion of the package terminal 340 extending out of the housing 100 may be vertical or spiral.

[0072] See also Figure 5In one embodiment, a plurality of installation grooves 230 for placing the electrode plates 220 are provided on the inner wall of the inner shell 200 at intervals. The top and bottom ends of the electrode plates 220 are fitted with the gap between the top wall and the bottom wall of the inner shell 200 to form a circulation channel for the flow of the medium.

[0073] By clamping the two ends of the electrode plate 220 in the corresponding mounting grooves 230, the position of the electrode plate 220 is fixed. When vibration occurs, the electrode plate 220 cannot be displaced or vibrated relative to the inner shell 200, and can only vibrate or move synchronously with the inner shell 200, thereby simplifying the vibration complexity of the electrode plate 220 and the internal medium.

[0074] The formation of the flow channel enables the medium to circulate inside the inner shell 200, thereby achieving uniform distribution of the medium, without being separated into independent cavities by the electrode plates 220, causing uneven distribution of the medium.

[0075] Continue to see Figure 2 In one embodiment, an annular notch 410 is provided on the inner wall surface of the vibration-suppressing sliding sleeve 400 , and the opening of the annular notch 410 is blocked by the outer surface of the inner shell 200 to form a buffer cavity.

[0076] When the inner shell 200 moves relative to the vibration-damping sleeve 400 and causes squeezing on one side, the air or refrigerant in the area is compressed and transferred back to the negative pressure area on the other side. During the transfer, the air enters the annular groove 410 to form a turbulent flow, which relatively increases the resistance to the movement of the inner shell 200. Combined with the pulling force of the negative pressure area on the inner shell 200 and the thrust of the high pressure area on the inner shell 200, the movement of the inner shell 200 relative to the vibration-damping sleeve 400 will be suppressed very quickly, and thus tends to be relatively prohibited.

[0077] See also Figure 1 In one embodiment, a plurality of connectors 120 for fixing the housing 100 are distributed on the top of the housing 100 .

[0078] The purpose of setting the connector 120 is to fix the housing 100 to the device so that the connection position between the package terminal 340 and the circuit is not completely stressed, thereby avoiding the risk of short circuit and ensuring that the circuit works stably when the device is in a vibrating state.

[0079] In one embodiment, the inner wall of the outer shell 100 and the outer wall of the inner shell 200 are both coated with a magnetic shielding layer.

[0080] The magnetic shielding layer is provided to avoid leakage and magnetic field interference problems, and to reduce or eliminate the mutual influence between the vibration of the outer shell 100 and the inner shell 200 and the magnetic field of the entire circuit.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Anti-vibration capacitor, characterized in that: include: SHELL(100); inner shell (200); Buffer component (300); as well as Vibration suppression sleeve (400); The vibration suppression sleeve (400) is an annular structure, the inner shell (200) passes through the vibration suppression sleeve (400) and is slidably matched with the vibration suppression sleeve (400), the outer wall of the vibration suppression sleeve (400) is fixed to the inner wall of the corresponding outer shell (100) to evenly divide the space between the outer shell (100) and the inner shell (200), and the buffer component (300) is symmetrically distributed between the outer shell (100) and the inner shell (200) with respect to the vibration suppression sleeve (400) to suppress the vibration of the inner shell (200); An annular notch (410) is provided on the inner wall surface of the vibration-suppressing sliding sleeve (400), and an opening of the annular notch (410) is blocked by the outer surface of the inner shell (200), forming a buffer cavity.

2. The anti-vibration capacitor according to claim 1, characterized in that: The buffer assembly (300) comprises: an elastic sheet (310), the elastic sheet (310) being wavy in shape, with both ends extending into the slots (110) on the inner wall of the housing (100); At least two arc-shaped protrusions on the elastic sheet (310) are located in the limiting grooves (210) on the outer wall of the inner shell (200).

3. The anti-vibration capacitor according to claim 2, characterized in that: The buffer assembly (300) further includes: A first permanent magnet (320) and a second permanent magnet (330); The first permanent magnets (320) are symmetrically distributed and embedded in the bottom surface of the inner shell (200), and the second permanent magnets (330) are embedded in the inner bottom surface of the outer shell (100) and correspond one-to-one with the first permanent magnets (320); The first permanent magnet (320) and the second permanent magnet (330) repel each other.

4. The anti-vibration capacitor according to claim 3, characterized in that: The buffer assembly (300) further includes: Package terminals (340), the package terminals (340) are symmetrically distributed, and the portion of the package terminals (340) located between the outer shell (100) and the inner shell (200) is spiral-shaped; The bottom end of the package terminal (340) is electrically connected to the electrode plate (220) fixed in the inner shell (200), and the top end extends out of the outer shell (100).

5. The anti-vibration capacitor according to claim 4, characterized in that: The inner wall of the inner shell (200) is provided with a plurality of installation grooves (230) for accommodating the electrode plates (220) at intervals. The top and bottom ends of the electrode plates (220) are both fitted with clearances between the top and bottom walls of the inner shell (200), forming a flow channel for the flow of the medium.

6. The anti-vibration capacitor according to any one of claims 1 to 4, characterized in that: A plurality of connecting pieces (120) for fixing the housing (100) are distributed on the top of the housing (100).

7. The anti-vibration capacitor according to claim 6, characterized in that: The inner wall of the outer shell (100) and the outer wall of the inner shell (200) are both coated with a magnetic shielding layer.

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