CN113053668A - Capacitor element - Google Patents
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- CN113053668A CN113053668A CN202110256589.1A CN202110256589A CN113053668A CN 113053668 A CN113053668 A CN 113053668A CN 202110256589 A CN202110256589 A CN 202110256589A CN 113053668 A CN113053668 A CN 113053668A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 59
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 5
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The application provides a capacitor element, which comprises a first electrode plate, a second electrode plate and an insulating medium layer, wherein the first electrode plate and the second electrode plate are arranged oppositely; the first electrode plate comprises at least one first main electrode plate and a plurality of first auxiliary electrode plates, the plurality of first auxiliary electrode plates are respectively and selectively electrically connected with the first main electrode plate, and the first auxiliary electrode plates are used for adjusting the capacitance value of the capacitor element by adjusting the number of the first auxiliary electrode plates electrically connected with the first main electrode plate. By applying the method, the manufacturing and processing are relatively simple, the capacitance value is conveniently adjusted, the cost is lower, and the service life is longer.
Description
Technical Field
The invention relates to the technical field of electronic components, in particular to a capacitor element.
Background
The capacitor is one of electronic elements widely used in electronic equipment, and is widely applied to aspects of blocking AC, coupling, bypassing, filtering, tuning loop, energy conversion, control and the like in a circuit. The capacitor may be classified by structure including: fixed capacitors, variable capacitors, and trim capacitors. The tunable capacitor is a capacitor whose capacitance can be adjusted within a small range and can be fixed to a certain capacitance after adjustment, and is also called a half-trim capacitor.
The traditional adjustable capacitor usually comprises two groups of electrodes, wherein one fixed group of the two groups of electrodes is a fixed piece, the other group of the two groups of electrodes which can be adjusted in a rotating mode is a movable piece, and ceramic, PVC or air can be used as a medium between the movable piece and the fixed piece. When the movable plate of the adjustable capacitor is rotated to be completely overlapped with the fixed plate, the capacitance is maximum; conversely, when the moving plate is completely screwed out, the capacitance is minimum. The adjustable capacitor structurally needs to be processed with a set of fixed plates, a set of moving plates and a screw rod for adjustment and then assembled, the processing and manufacturing are relatively complex, the cost is high, the adjustment service life is limited, and the adjusted capacitance value is easily affected by vibration.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a capacitor element which is relatively simple to manufacture and process, convenient to adjust a capacitance value, low in cost and long in service life.
In order to achieve the object of the present invention, a first aspect provides a capacitor element, including a first electrode sheet and a second electrode sheet which are oppositely arranged, and an insulating medium layer arranged between the first electrode sheet and the second electrode sheet; wherein the content of the first and second substances,
the first electrode plate comprises at least one first main electrode plate and a plurality of first auxiliary electrode plates, the plurality of first auxiliary electrode plates are respectively and selectively electrically connected with the first main electrode plate, and the first auxiliary electrode plates are used for adjusting the capacitance value of the capacitance element by adjusting the number of the first auxiliary electrode plates electrically connected with the first main electrode plate.
Optionally, the capacitor element further includes a printed circuit board, the printed circuit board includes a substrate layer and line layers disposed on two surfaces of the substrate layer, the substrate layer serves as the insulating medium layer, and the line layers serve as the first electrode sheet and the second electrode sheet, respectively.
Optionally, the first main electrode plate and the first auxiliary electrode plate are electrically connected through a pluggable conductive connecting piece.
Optionally, the connecting member includes a fixing member and a plug member, the fixing member is connected to the first main electrode piece and the first auxiliary electrode piece respectively, and the plug member is used for being inserted into the fixing member to enable the first main electrode piece and the first auxiliary electrode piece to be electrically conducted.
Optionally, a projection of the first electrode sheet on the insulating medium layer is located in a projection of the second electrode sheet on the insulating medium layer.
Optionally, the area of the first main electrode piece is larger than the area of each first secondary electrode piece.
Optionally, the first main electrode plate is rectangular, and a plurality of first auxiliary electrode plates are arranged at intervals along the length direction of the rectangle; or the like, or, alternatively,
the plurality of first sub-electrode pieces are located on two sides of the rectangle in the length direction.
Optionally, the capacitor element further includes a connection terminal, and the connection terminal is disposed on the first main electrode sheet and is used for being electrically connected to an external circuit.
Optionally, the first electrode sheet and the second electrode sheet are both made of copper foil.
Optionally, the insulating medium layer is made of at least one of teflon, bakelite, fiberglass, plastic, and ceramic.
The invention has the following beneficial effects:
the invention provides a capacitor element, wherein a first electrode plate comprises a first main electrode plate and a plurality of first auxiliary electrode plates, the plurality of first auxiliary electrode plates are respectively and selectively and electrically connected with the first main electrode plate, different first auxiliary electrode plates can be connected with the first main electrode plate into a whole, so that the area of the part of the first electrode plate, which is just opposite to a second electrode plate, can be adjusted by adjusting the number of the first auxiliary electrode plates connected with the first main electrode plate, thereby adjusting the capacitance value of the capacitor element, the adjusting mode has no mechanical adjustment, only the first main electrode plate is required to be connected with different numbers of first auxiliary electrode plates, the mechanical processing is simpler, the adjusting mode is more convenient, the adjusting range is wider, the voltage resistance of the capacitor is higher, the stability and the reliability are higher, the guarantee is provided for the reliable work of the whole machine, the coupling of a movable plate and a fixed plate in the traditional adjustable capacitor can be, and through the mode of screw rod regulation, the capacitance value is easily influenced by vibrations and takes place the deviation, leads to the circuit index to deviate from initial design value, influences the problem of complete machine performance finally. And the capacitor element does not need complex machining of the traditional adjustable capacitor, so the manufacturing cost is lower and the service life is longer.
Drawings
Fig. 1 is a schematic perspective view of a capacitor device according to this embodiment;
fig. 2 is a schematic top view of the capacitor device according to the present embodiment;
fig. 3 is a schematic perspective view of another perspective view of the capacitor device according to this embodiment.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The following describes the technical solutions of the present application and how to solve the above technical problems in specific embodiments with reference to the accompanying drawings.
Referring to fig. 1-3, the present embodiment provides a capacitor device, which includes a first electrode plate and a second electrode plate 20 disposed opposite to each other, and an insulating dielectric layer 30 disposed between the first electrode plate and the second electrode plate 20. The first electrode plate comprises at least one first main electrode plate 11 and a plurality of first auxiliary electrode plates 12, the plurality of first auxiliary electrode plates 12 are respectively and selectively electrically connected with the first main electrode plate 11, and the first auxiliary electrode plates 12 are used for adjusting the capacitance value of the capacitor element by adjusting the number of the first auxiliary electrode plates 12 electrically connected with the first main electrode plate 11.
The capacitor element can be applied to an electronic component (such as a filter) of a matching network to form a tuning capacitor, so as to realize tuning amplification, frequency-selective oscillation and the like of signals, such as a data port of a radio frequency network, a radio frequency power supply and other semiconductor process equipment which needs tuning amplification and frequency-selective oscillation. In use of the capacitor, the first electrode plate (usually the first main electrode plate 11) is connected to a power supply, the second electrode plate 20 is connected to a ground line, the capacitance of the capacitor is determined by the area of the portion of the first electrode plate directly opposite to the second electrode plate 20, and the portion of the first electrode plate directly opposite to the second electrode plate 20 can be understood as the total area of the first main electrode plate 11 of the first electrode plate and all the first auxiliary electrode plates 12 electrically connected to the first main electrode plate 11 and the portion of the second electrode plate 20 directly opposite to each other.
Usually, the projection of the first electrode plate on the insulating medium layer 30 falls within the projection of the second electrode plate 20 on the insulating medium layer 30, so that the second electrode plate 20 can completely cover the first electrode plate, and after each first secondary electrode plate 12 is selectively and electrically connected with the first primary electrode plate 11, the area of the part of the first electrode plate, which is directly opposite to the second electrode plate 20, can be effectively changed, so as to ensure the effective capacitance between the first electrode plate and the second electrode plate 20. The insulating medium layer 30 may be a solid insulating medium, such as ceramic, organic polymer material, or an air layer, which is not limited in this embodiment.
According to the calculation principle of the capacitance value, the capacitance value calculation formula of the capacitive element provided by this embodiment is:
wherein epsilon0Is a vacuum dielectric constant; epsilonrThe dielectric constant of the insulating dielectric layer 30; s is the area of the portion of the first electrode sheet directly opposite the second electrode sheet 20; d is the thickness of the insulating dielectric layer 30.
From the above-mentioned capacitance value calculation formula of the capacitor element,. epsilon.0The dielectric constant of the vacuum is a constant value, the capacitance of the capacitor element and the dielectric constant ε of the insulating dielectric layer 30rIn proportion to the area S of the portion of the first electrode sheet directly opposite to the second electrode sheet 20, and in inverse proportion to the thickness d of the insulating medium layer 30. Therefore, the dielectric constant ε of the insulating dielectric layer 30 can be changedrThe capacitance value of the capacitor element is adjusted by (changing the material of the insulating medium layer 30), the area S of the portion of the first electrode sheet directly opposing the second electrode sheet 20, and the thickness d of the insulating medium layer 30.
Specifically, the thickness d and the dielectric constant ε of the insulating dielectric layer 30rIn a fixed state, the larger the area S of the portion of the first electrode sheet directly opposing the second electrode sheet 20, the larger the capacitance value of the capacitive element, and conversely, the smaller the capacitance value of the capacitive element, wherein the first main electrode sheet 11 is mainly used for the thickness d and the dielectric constant e of the insulating dielectric layer 30rTogether defining an initial capacitance value of the capacitive element. The first secondary electrode pieces 12 are mainly used to further adjust the capacitance value (usually, increase) of the capacitive element by electrically connecting one or more first secondary electrode pieces 12 to the first main electrode piece 11 on the basis of the initial capacitance value of the capacitive elementLarger than the capacitance value of the capacitive element). The dielectric constant ε is obtained by fixing the thickness d of the insulating medium layer 30 and the area S of the portion of the first electrode sheet directly facing the second electrode sheet 20rThe larger the capacitance value of the capacitive element, the smaller the capacitance value of the capacitive element. Dielectric constant epsilon of the insulating dielectric layer 30rAnd the area S of the portion of the first electrode sheet directly opposing the second electrode sheet 20 is fixed, the thicker the thickness d of the insulating medium layer 30 is, the smaller the capacitance value of the capacitor element is, and conversely, the larger the capacitance value of the capacitor element is.
In the capacitor element provided by the embodiment, the first electrode plate comprises a first main electrode plate 11 and a plurality of first auxiliary electrode plates 12, the plurality of first auxiliary electrode plates 12 are respectively and selectively electrically connected with the first main electrode plate 11, different first auxiliary electrode plates 12 can be connected with the first main electrode plate 11 into a whole, so that the area of the part of the first electrode plate opposite to the second electrode plate 20 can be adjusted by adjusting the number of the first auxiliary electrode plates 12 electrically connected with the first main electrode plate 11, thereby adjusting the capacitance value of the capacitor element, the adjusting mode has no mechanical adjustment, only the first main electrode plate 11 is needed to be electrically connected with different numbers of first auxiliary electrode plates 12, the mechanical processing is simpler, the adjusting mode is more convenient, the adjusting range is wider, the voltage resistance of the capacitor is higher, the stability and the reliability are higher, and the reliable work of the whole capacitor is guaranteed, the problem that the traditional adjustable capacitor is coupled with a fixed plate by a movable plate and is adjusted by a screw rod, the capacitance value is easy to deviate due to the influence of vibration, so that the circuit index deviates from the initial design value and the performance of the whole machine is finally influenced can be solved. And the capacitor element does not need complex machining of the traditional adjustable capacitor, so the manufacturing cost is lower and the service life is longer.
One or more first main electrode plates 11 may be provided, and if there are a plurality of first main electrode plates 11, the first main electrode plates 11 can be connected to a power supply. The second electrode plate 20 may be a whole piece or include a plurality of pieces, and if the number of the second electrode plates 20 is a plurality of pieces, the plurality of second electrode plates 20 may be connected to the same ground wire, and the plurality of second electrode plates 20 are respectively opposite to the first main electrode plate 11 or the first auxiliary electrode plate 12. Usually, the position and size of the second electrode plate 20 are fixed, and the capacitance value of the capacitor element is adjusted by adjusting the first electrode plate, but this embodiment is not limited thereto, and the second electrode plate 20 may be arranged in the same or similar manner as the first electrode plate, as long as the area S of the portion of the first electrode plate directly opposite to the second electrode plate 20 can be adjusted by adjusting the number of the first auxiliary electrode plates 12 electrically connected to the first main electrode plate 11, and then the capacitance value of the capacitor element can be adjusted.
In a specific embodiment of this embodiment, the capacitor element may be directly formed on a printed circuit board, and the capacitor element may further include a printed circuit board, where the printed circuit board includes a substrate layer and circuit layers disposed on two surfaces of the substrate layer, the substrate layer serves as the insulating dielectric layer 30, and the circuit layers serve as the first electrode sheet and the second electrode sheet 20, respectively, so that the insulating dielectric layer 30 does not need to be separately processed, and thus, raw materials and processing costs may be reduced. The printed circuit board may be a part of a main circuit board of a circuit to which the capacitor element is applied (a small substrate layer of the main circuit board is used as the insulating medium layer 30, and a small circuit layer of the main circuit board is used as the first electrode tab and the second electrode tab 20), or may be an additional circuit board separately provided according to a design index requirement, and the additional circuit board may be connected to the main circuit board, and has a capacitance value range, corresponding parameters, dimensions, and the like, which are required by a certain index.
Correspondingly, the capacitor element may further include a connection terminal 111, and the connection terminal 111 may be disposed on the first main electrode tab 11, electrically connected with the first main electrode tab 11, and used for electrically connecting with an external circuit. The external circuit may be the main circuit board, and the main circuit board may be regarded as the power supply.
In another specific embodiment of this embodiment, the first main electrode piece 11 and the first auxiliary electrode piece 12 are inserted and connected through a conductive connecting member 13, so as to realize selective electrical connection between the first main electrode piece 11 and the first auxiliary electrode piece 12.
Further, the connecting member 13 includes a fixing member 131 and a plug member 132, the fixing member 131 is connected to the first main electrode piece 11 and the first sub-electrode piece 12, respectively, and the plug member 132 is inserted into the fixing member 131 to make electrical conduction between the first main electrode piece 11 and the first sub-electrode piece 12. The fixing member 131 may include at least two vertically disposed pins, and the two pins are respectively fixed on the first main electrode piece 11 and the first auxiliary electrode piece 12. The plug 132 may be made of a conductive material, and may have slots corresponding to the pins one by one, so that the pins are inserted into the slots respectively, so as to electrically connect the first main electrode piece 11 and the first auxiliary electrode piece 12. An insulating base may be provided, so that two ends of the base are respectively connected with the first main electrode piece 11 and the first auxiliary electrode piece 12, and a plurality of pins may pass through the base and be respectively electrically connected with the first main electrode piece 11 or the first auxiliary electrode piece 12. Specifically, the connecting member 13 may be an adjustment terminal to achieve rapid electrical conduction between the first main electrode piece 11 and the first sub-electrode piece 12.
The connection mode of the first main electrode tab 11 and the first auxiliary electrode tab 12 is only one embodiment of the present embodiment, and the present embodiment is not limited to this, and for example, the connection mode may be directly performed by welding or by using an on-off switch when necessary.
In another embodiment of this embodiment, the area of the first main electrode tab 11 is usually different from the area of the first secondary electrode tab 12, for example, the area of the first main electrode tab 11 may be larger than the area of each first secondary electrode tab 12, so as to ensure the initial capacitance value of the capacitor element and a certain adjustable value (the area of the first main electrode tab 11 determines the initial capacitance value of the capacitor element, the area of the first secondary electrode tab 12 determines the adjustable capacitance value of the capacitor element, and usually the adjustable capacitance value of the adjustable capacitor will be smaller than the initial capacitance value). The areas of all the first secondary electrode sheets 12 may be the same or different. No matter the first main electrode plate 11 or the first auxiliary electrode plate 12 corresponds to a corresponding capacitance value according to the area size, in practical application, the first auxiliary electrode plate 12 with the corresponding area size can be selectively and electrically connected with the first main electrode plate 11 according to the specific capacitance value requirement of the circuit.
Further, as shown in fig. 2, the first main electrode piece 11 may be rectangular, the plurality of first auxiliary electrode pieces 12 may also be rectangular, and the plurality of first auxiliary electrode pieces 12 may be arranged at intervals along the long side direction of the first auxiliary electrode pieces 12, so that the first auxiliary electrode pieces 12 may be electrically connected with the first main electrode piece 11 selectively. The number of the first secondary electrode sheets 12 may be four, or may be more or less than four.
It should be noted that the arrangement of the first main electrode piece 11 and the first auxiliary electrode piece 12 is only one embodiment of the present embodiment, and the present embodiment is not limited thereto, for example, the first main electrode piece 11 may be arranged at a middle position, and the four first auxiliary electrode pieces 12 are respectively arranged at two sides of the first main electrode piece 11. Specifically, the plurality of first sub-electrode pieces 12 may be located on both sides in the length direction of the rectangle.
In another embodiment of this embodiment, the first electrode pad and the second electrode pad 20 may be made of copper foil, gold plating or other alloys, as long as the electrode function is achieved. The material of the substrate layer can be at least one of polytetrafluoroethylene, bakelite, glass fiber, plastic and ceramic, and the dielectric constant of the substrate layer can be changed by changing the material of the substrate layer, so that the capacity value of the capacitor is changed.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present application, and that the present application is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the application, and these changes and modifications are to be considered as the scope of the application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A capacitor element is characterized by comprising a first electrode plate, a second electrode plate and an insulating medium layer, wherein the first electrode plate and the second electrode plate are arranged oppositely; wherein the content of the first and second substances,
the first electrode plate comprises at least one first main electrode plate and a plurality of first auxiliary electrode plates, the plurality of first auxiliary electrode plates are respectively and selectively electrically connected with the first main electrode plate, and the first auxiliary electrode plates are used for adjusting the capacitance value of the capacitance element by adjusting the number of the first auxiliary electrode plates electrically connected with the first main electrode plate.
2. The capacitive element according to claim 1, further comprising a printed circuit board including a substrate layer serving as the insulating medium layer and wiring layers provided on both surfaces of the substrate layer, the wiring layers serving as the first and second electrode sheets, respectively.
3. A capacitive element as claimed in claim 1, wherein the first primary electrode sheet and the first secondary electrode sheet are electrically connected by a pluggable conductive connection.
4. The capacitive element according to claim 3, wherein the connecting member comprises a fixing member and a plug member, the fixing member is connected to the first main electrode piece and the first sub electrode piece, respectively, and the plug member is adapted to be inserted into the fixing member to electrically communicate between the first main electrode piece and the first sub electrode piece.
5. The capacitive element of claim 1 wherein a projection of the first electrode pad on the insulating medium layer is located within a projection of the second electrode pad on the insulating medium layer.
6. The capacitive element according to claim 1, wherein an area of the first main electrode tab is larger than an area of each of the first sub-electrode tabs.
7. The capacitive element according to claim 6, wherein the first main electrode piece has a rectangular shape, and a plurality of the first sub-electrode pieces are provided at intervals in a longitudinal direction of the rectangular shape; or the like, or, alternatively,
the plurality of first sub-electrode pieces are located on two sides of the rectangle in the length direction.
8. The capacitive element according to any one of claims 1 to 7, further comprising a connection terminal disposed on the first main electrode for electrically connecting to an external circuit.
9. The capacitive element according to any one of claims 1 to 7, wherein the first electrode sheet and the second electrode sheet are both made of copper foil.
10. The capacitive element of any one of claims 1-7 wherein the dielectric layer is at least one of polytetrafluoroethylene, bakelite, fiberglass, plastic, and ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110256589.1A CN113053668B (en) | 2021-03-09 | 2021-03-09 | Capacitive element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110256589.1A CN113053668B (en) | 2021-03-09 | 2021-03-09 | Capacitive element |
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| CN113053668A true CN113053668A (en) | 2021-06-29 |
| CN113053668B CN113053668B (en) | 2023-05-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466045A (en) * | 1983-07-06 | 1984-08-14 | Sprague Electric Company | Adjustable monolithic ceramic capacitor |
| JP2001210544A (en) * | 2000-01-25 | 2001-08-03 | Nec Tohoku Ltd | Chip multilayer ceramic capacitor |
| JP2005340470A (en) * | 2004-05-26 | 2005-12-08 | Kyocera Corp | Variable capacitor, circuit module, and communication system |
| US20100296225A1 (en) * | 2008-11-25 | 2010-11-25 | Patrick Smith | Tunable Capacitors |
| CN209487323U (en) * | 2019-04-12 | 2019-10-11 | 成都信息工程大学 | A kind of adjustable multi-layer ceramic capacitor |
-
2021
- 2021-03-09 CN CN202110256589.1A patent/CN113053668B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466045A (en) * | 1983-07-06 | 1984-08-14 | Sprague Electric Company | Adjustable monolithic ceramic capacitor |
| JP2001210544A (en) * | 2000-01-25 | 2001-08-03 | Nec Tohoku Ltd | Chip multilayer ceramic capacitor |
| JP2005340470A (en) * | 2004-05-26 | 2005-12-08 | Kyocera Corp | Variable capacitor, circuit module, and communication system |
| US20100296225A1 (en) * | 2008-11-25 | 2010-11-25 | Patrick Smith | Tunable Capacitors |
| CN209487323U (en) * | 2019-04-12 | 2019-10-11 | 成都信息工程大学 | A kind of adjustable multi-layer ceramic capacitor |
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| Publication number | Publication date |
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| CN113053668B (en) | 2023-05-16 |
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