High-voltage ceramic capacitor electrode

Abstract

The utility model discloses a high-voltage ceramic capacitor electrode, and relates to the field of electronic components. Comprising a screw electrode, the screw electrode comprises a first connecting end, a fixing end and a second connecting end, the first connecting end is a cylinder, a first thread is arranged outside the first connecting end, the second connecting end is a cylinder, a second thread is arranged outside the second connecting end, and the upper surface and the lower surface of the fixing end are connected with the first connecting end and the second connecting end respectively; the diameter of the first connecting end is smaller than that of the fixed end, and the diameter of the second connecting end is smaller than that of the fixed end; the bowl-shaped nut comprises an outer connecting end and an annular connecting end, the bowl-shaped nut is connected with an external circuit through the outer connecting end, the annular connecting end is of an annular structure, a third thread is arranged on the inner wall of the annular connecting end, the inner diameter of the annular connecting end is matched with the diameter of the first connecting end, and the first thread is matched with the third thread.

Description

Technical Field

[0001] The utility model relates to the field of electronic components, and more particularly to a high-voltage ceramic capacitor electrode. Background Art

[0002] The electrodes of high voltage ceramic capacitor chips are usually made of Figure 1 The bowl-shaped integrated electrode 20 shown in the figure can be better fitted on the surface of the high-voltage ceramic capacitor chip 1. Compared with the traditional planar electrode, this shape can greatly increase the contact area between the electrode and the ceramic medium. The increase in contact area helps to reduce the contact resistance between the electrode and the ceramic medium, improve the conductivity of the capacitor, and enable the capacitor to transfer charge more efficiently during the charging and discharging process, thereby improving the overall performance of the capacitor. However, since the bonding strength between the bowl-shaped integrated electrode and the ceramic chip is not high enough, the electrode is prone to fall off during long-term use. Moreover, the size and shape of the bowl-shaped integrated electrode are relatively fixed, the cost is relatively high, and it may take up a large space during installation and use. It is also difficult to meet the needs of different application scenarios and miniaturized design. The integrated electrode needs to be disassembled as a whole when cleaning, replacing or repairing, which is a relatively complicated operation and may cause damage to other parts of the capacitor during the disassembly process.

[0003] In summary, the existing bowl-shaped integrated electrode has the problem of easy detachment due to insufficient bonding with the ceramic chip, and its shape and size are fixed, which limits its application scenarios, is not conducive to miniaturized production, and is complicated to disassemble. Utility Model Content

[0004] The embodiment of the present utility model provides a high-voltage ceramic capacitor electrode to solve the problem that the existing bowl-shaped integrated electrode is easy to fall off due to insufficient bonding with the ceramic chip, and has a fixed shape and size, which limits the application scenarios, is not conducive to miniaturized production, and is complicated to disassemble.

[0005] The present invention provides a high-voltage ceramic capacitor electrode, comprising:

[0006] A screw electrode disposed on the upper surface of a high-voltage ceramic capacitor includes a first connecting end, a fixed end, and a second connecting end. The first connecting end is a cylinder with a first thread disposed on its exterior. The second connecting end is a cylinder with a second thread disposed on its exterior. The upper and lower surfaces of the fixed end are connected to the first and second connecting ends, respectively. The diameter of the first connecting end is smaller than that of the fixed end, and the diameter of the second connecting end is smaller than that of the fixed end.

[0007] A bowl-shaped nut includes an external connection end and an annular connection end, and is connected to an external circuit through the external connection end. The annular connection end is an annular structure, and a third thread is provided on its inner wall. The inner diameter of the annular connection end matches the diameter of the first connection end, and the first thread matches the third thread.

[0008] Preferably, the length of the first connecting end is greater than or equal to the length of the annular structure.

[0009] Preferably, the external connection end is cylindrical in shape, with a side away from the high-voltage ceramic capacitor in an annular shape and a side close to the high-voltage ceramic capacitor in a circular shape, and is fixedly connected to the annular connection end.

[0010] Preferably, an annular groove is provided on the outer wall of the outer connecting end.

[0011] Preferably, the first thread and the third thread are M3; or the first thread and the third thread are M4.

[0012] Preferably, the surfaces of the first thread, the second thread and the third thread are provided with a silver plating layer; or the surfaces of the first thread, the second thread and the third thread are provided with a zinc plating layer.

[0013] Preferably, the diameter of the annular connecting end is larger than the diameter of the fixed end.

[0014] The high-voltage ceramic capacitor electrode provided by the embodiment of the present invention includes: a screw electrode arranged on the upper surface of the high-voltage ceramic capacitor, which includes a first connecting end, a fixed end and a second connecting end, the first connecting end is a cylinder with a first thread arranged on the outside, the second connecting end is a cylinder with a second thread arranged on the outside, the upper surface and the lower surface of the fixed end are respectively connected to the first connecting end and the second connecting end, the diameter of the first connecting end is smaller than the diameter of the fixed end, and the diameter of the second connecting end is smaller than the diameter of the fixed end; a bowl-shaped nut, which includes an external connecting end and an annular connecting end, and is connected to an external circuit through the external connecting end, the annular connecting end is an annular structure, and a third thread is arranged on its inner wall, the inner diameter of the annular connecting end matches the diameter of the first connecting end, and the first thread matches the third thread. In the high-voltage ceramic capacitor electrode provided by the embodiment of the present invention, the screw electrode unit can be fixed to the upper surface of the high-voltage ceramic capacitor by wire connection, which can achieve more firm fixation, improve the reliability of the capacitor in vibration and impact environments, and solve the problem of electrode detachment of the high-voltage ceramic capacitor during long-term use in the prior art; due to the separate design of the bowl-shaped nut and the screw electrode, the bowl-shaped nut can be removed first in actual application to install the high-voltage ceramic capacitor, thereby reducing space and being conducive to the miniaturization design of the high-voltage ceramic capacitor; furthermore, when the high-voltage ceramic capacitor needs to be cleaned, replaced and repaired, only the bowl-shaped nut included therein can be removed, thereby avoiding the problem of complex operation of the overall disassembly and the risk of secondary damage to other parts of the high-voltage ceramic capacitor; the high-voltage ceramic capacitor provided in this embodiment can be changed at any time according to the special needs of different application scenarios of the product due to the separate design of the bowl-shaped nut and the screw electrode, and its production cost can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the bowl-shaped integrated electrode design structure provided in the prior art;

[0017] Figure 2 A schematic diagram of a high-voltage ceramic capacitor electrode provided by an example of the present utility model;

[0018] Among them, 1 ~ high-voltage ceramic capacitor, 2 ~ screw electrode, 3 ~ bowl-shaped nut, 20 ~ bowl-shaped integrated electrode. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Figure 2 A schematic diagram of a high voltage ceramic capacitor electrode is provided in the example of the present utility model. Figure 2 Taking this as an example, a high voltage ceramic capacitor electrode provided by the present utility model is described in detail. Figure 2 As shown, the high-voltage ceramic capacitor electrode mainly includes a high-voltage ceramic capacitor 1, a screw electrode 2 and a bowl-shaped nut 3.

[0021] Specifically, the structure of the high-voltage ceramic capacitor provided in the embodiment of the present invention is the same as that of the existing high-voltage ceramic capacitor, with the only difference being that a screw electrode is connected to its upper surface via a thread.

[0022] Furthermore, the screw electrode provided in this embodiment is different from the prior art in that the screw electrode and the bowl-shaped nut are of a split design, that is, the screw electrode is first separately arranged on the upper surface of the high-voltage ceramic capacitor, and the bowl-shaped nut can be separated from the screw electrode before use. In order to achieve the split design of the screw electrode and the bowl-shaped nut, the screw electrode in this embodiment includes a fixed end, a first connecting end and a second connecting end. The first connecting end is a cylinder with a first thread arranged on the outside, and the second connecting end is a cylinder with a second thread arranged on the outside, and the upper surface and lower surface of the fixed end are respectively connected to the first connecting end and the second connecting end. The second connecting end is arranged in the high-voltage ceramic capacitor through a thread, and accordingly, the fixed end is fixed to the upper surface of the high-voltage ceramic capacitor through the second connecting end. Furthermore, the first connecting end is arranged on the upper surface of the fixed end. In this embodiment, in order to enable the screw electrode and the bowl-shaped nut to be separated or combined into one, the first connecting end included in the screw electrode is in the shape of a cylinder, and a first thread is provided on the outer wall of the cylinder, and fixation with the bowl-shaped nut can be achieved through the first thread. At the same time, the second connecting end included in the screw electrode is also in the shape of a cylinder, and a second thread is provided on the outer wall of the cylinder, and fixation with the high-voltage ceramic capacitor can be achieved through the second thread; in order to enable the screw electrode to be fixed to the upper surface of the high-voltage ceramic capacitor, preferably, the diameters of the first connecting end and the second connecting end of the screw electrode are smaller than the diameter of the fixed end of each screw electrode.

[0023] It should be noted that in order to fix the second connecting end to the high-voltage ceramic capacitor through threads, a connecting screw hole matching the size of the second connecting end is also provided on the upper surface of the high-voltage ceramic capacitor. The diameter of the connecting screw hole matches the diameter of the second connecting end, and the fourth thread included in the connecting screw hole matches the second thread, that is, the second thread can be fixed to the fourth thread included in the connecting screw hole by thread connection.

[0024] Furthermore, the bowl-shaped nut in this embodiment also includes an external connection end and an annular connection end. Specifically, the bowl-shaped nut is connected to an external circuit or electrical device through the external connection end, and the annular connection end is arranged below the external connection, that is, the external connection end is away from the high-voltage ceramic capacitor, and the annular connection end is close to the high-voltage ceramic capacitor. In this embodiment, in order to enable the bowl-shaped nut and the screw electrode to realize a split design, preferably, the shape of the annular connection end is an annular structure, the inner wall of the annular structure is provided with a third thread, and the inner diameter of the annular connection end matches the diameter of the first connection end, that is, the inner diameter of the annular connection end matches the outer diameter of the first connection end, that is, the annular connection end can be arranged on the outside of the first connection end, and when the first thread and the third thread match, the annular connection end is fixed to the first connection end by thread.

[0025] In this embodiment, in order to realize a split design of the bowl-shaped nut and the screw electrode, the third thread included in the annular connecting end matches the first thread included in the first connecting end, that is, the two threads can be connected and fixed.

[0026] In the high-voltage ceramic capacitor electrode provided by the embodiment of the present invention, the screw electrode unit can be fixed to the upper surface of the high-voltage ceramic capacitor by wire connection, which can achieve more firm fixation, improve the reliability of the capacitor in vibration and impact environments, and solve the problem of electrode detachment of the high-voltage ceramic capacitor during long-term use in the prior art; due to the separate design of the bowl-shaped nut and the screw electrode, the bowl-shaped nut can be removed first in actual application to install the high-voltage ceramic capacitor, thereby reducing space and being conducive to the miniaturization design of the high-voltage ceramic capacitor; furthermore, when the high-voltage ceramic capacitor needs to be cleaned, replaced and repaired, only the bowl-shaped nut included therein can be removed, thereby avoiding the problem of complex operation of the overall disassembly and the risk of secondary damage to other parts of the high-voltage ceramic capacitor; the high-voltage ceramic capacitor provided in this embodiment can be changed at any time according to the special needs of different application scenarios of the product due to the separate design of the bowl-shaped nut and the screw electrode, and its production cost can also be reduced.

[0027] For example, in order to enable the bowl-shaped nut to be fixed on the screw electrode, the high-voltage ceramic capacitor electrode provided by the embodiment of the present invention preferably has a first connection end of the screw electrode having a length greater than or equal to a length of the annular structure of the bowl-shaped nut.

[0028] Furthermore, in order to enable the screw electrode to be fixed on the high-voltage ceramic capacitor, preferably, the length of the second connection end included in the screw electrode is equal to the length of the connection screw hole provided on the upper surface of the high-voltage ceramic capacitor.

[0029] For example, in the high-voltage ceramic capacitor electrode provided by the present invention, the bowl-shaped nut includes a cylindrical outer connection end, a circular ring-shaped end facing away from the high-voltage ceramic capacitor, and a circular end facing closer to the high-voltage ceramic capacitor, which is fixedly connected to the annular connection end. This arrangement reduces the weight of the bowl-shaped nut and also reduces production costs.

[0030] Furthermore, an annular groove is provided on the outer wall of the outer connecting end of the bowl-shaped nut. The above arrangement can make the bowl-shaped nut more firmly bonded in the epoxy resin.

[0031] In specific applications, since the bowl-shaped nut and the screw electrode adopt a split design, the bowl-shaped nut can be reused multiple times according to specific usage scenarios, thereby reducing production costs.

[0032] Furthermore, since the bowl-shaped nut and the screw electrode adopt a split design, bowl-shaped nuts of different sizes and materials can be selected for use with the screw electrode according to the requirements of different application scenarios, thereby achieving personalized customization.

[0033] Furthermore, in this embodiment, the bowl-shaped nut and the screw electrode can be made of different materials to meet different performance requirements. For example, the bowl-shaped nut can be made of a metal material with good electrical conductivity, such as copper or silver; and the screw electrode can be made of a high-strength, corrosion-resistant material, such as stainless steel.

[0034] It should be noted that in this embodiment, the design of the first, second, and third threads should ensure a secure and stable connection. Standard thread specifications can be used to design the first, second, and third threads. For example, the first, second, and third threads may all be M3, or they may all be M4. The specifications of the first, second, and third threads are not limited herein.

[0035] In practical applications, to improve the reliability of threaded connections, special treatments such as silver plating or zinc plating can be applied to the thread surfaces to enhance conductivity and corrosion resistance. Specifically, the surfaces of the first, second, and third threads can be silver-plated, or zinc-plated.

[0036] It should be noted that, in this embodiment, the diameter of the annular connecting end is larger than the diameter of the fixed end.

[0037] The high-voltage ceramic capacitor electrode provided by the embodiment of the present invention includes a high-voltage ceramic capacitor, a screw electrode is arranged on the upper surface of which; the screw electrode includes a first connecting end, a fixed end and a second connecting end, the first connecting end is a cylinder, a first thread is arranged on the outside of the second connecting end is a cylinder, a second thread is arranged on the outside of the second connecting end, the upper surface and the lower surface of the fixed end are respectively connected to the first connecting end and the second connecting end, the diameter of the first connecting end is smaller than the diameter of the fixed end, and the diameter of the second connecting end is smaller than the diameter of the fixed end; a bowl-shaped nut includes an external connecting end and an annular connecting end, and is connected to an external circuit through the external connecting end, the annular connecting end is an annular structure, a third thread is arranged on its inner wall, the inner diameter of the annular connecting end matches the diameter of the first connecting end, and the first thread matches the third thread. In the high-voltage ceramic capacitor electrode provided by the embodiment of the present invention, the screw electrode unit can be fixed to the upper surface of the high-voltage ceramic capacitor by wire connection, which can achieve more firm fixation, improve the reliability of the capacitor in vibration and impact environments, and solve the problem of electrode detachment of the high-voltage ceramic capacitor during long-term use in the prior art; due to the separate design of the bowl-shaped nut and the screw electrode, the bowl-shaped nut can be removed first in actual application to install the high-voltage ceramic capacitor, thereby reducing space and being conducive to the miniaturization design of the high-voltage ceramic capacitor; furthermore, when the high-voltage ceramic capacitor needs to be cleaned, replaced and repaired, only the bowl-shaped nut included therein can be removed, thereby avoiding the problem of complex operation of the overall disassembly and the risk of secondary damage to other parts of the high-voltage ceramic capacitor; the high-voltage ceramic capacitor provided in this embodiment can be changed at any time according to the special needs of different application scenarios of the product due to the separate design of the bowl-shaped nut and the screw electrode, and its production cost can also be reduced.

[0038] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0039] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A high voltage ceramic capacitor electrode, characterized in that: include: A screw electrode disposed on the upper surface of a high-voltage ceramic capacitor includes a first connecting end, a fixed end, and a second connecting end. The first connecting end is a cylinder with a first thread disposed on its exterior. The second connecting end is a cylinder with a second thread disposed on its exterior. The upper and lower surfaces of the fixed end are connected to the first and second connecting ends, respectively. The diameter of the first connecting end is smaller than that of the fixed end, and the diameter of the second connecting end is smaller than that of the fixed end. A bowl-shaped nut includes an external connection end and an annular connection end, and is connected to an external circuit through the external connection end. The annular connection end is an annular structure, and a third thread is provided on its inner wall. The inner diameter of the annular connection end matches the diameter of the first connection end, and the first thread matches the third thread.

2. The high voltage ceramic capacitor electrode according to claim 1, wherein The length of the first connecting end is greater than or equal to the length of the annular structure.

3. The high voltage ceramic capacitor electrode according to claim 1, wherein The external connection end is cylindrical in shape, with a side away from the high-voltage ceramic capacitor in an annular shape and a side close to the high-voltage ceramic capacitor in a circular shape, and is fixedly connected to the annular connection end.

4. The high voltage ceramic capacitor electrode according to claim 1, wherein An annular groove is provided on the outer wall of the outer connecting end.

5. The high voltage ceramic capacitor electrode according to claim 1, wherein The first thread and the third thread are M3; or the first thread and the third thread are M4.

6. The high voltage ceramic capacitor electrode according to claim 1, wherein The surfaces of the first thread, the second thread and the third thread are provided with a silver plating layer; or the surfaces of the first thread, the second thread and the third thread are provided with a zinc plating layer.

7. The high voltage ceramic capacitor electrode according to claim 1, wherein: The diameter of the annular connecting end is larger than the diameter of the fixing end.

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