CN104637672A - Single-casing double-body three-terminal capacitor and power circuit - Google Patents
Single-casing double-body three-terminal capacitor and power circuit Download PDFInfo
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- CN104637672A CN104637672A CN201510114783.0A CN201510114783A CN104637672A CN 104637672 A CN104637672 A CN 104637672A CN 201510114783 A CN201510114783 A CN 201510114783A CN 104637672 A CN104637672 A CN 104637672A
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Abstract
The invention provides a single-casing double-body three-terminal capacitor and a power circuit. The single-casing double-body three-terminal capacitor comprises a metal casing, and a first capacitor and a second capacitor, which are accommodated in the metal casing, wherein the cathode of the first capacitor is led out of the metal casing to serve as the cathode terminal of the three-terminal capacitor through a wire; the anode of the second capacitor is led out of the metal casing to serve as the anode terminal of the three-terminal capacitor through a wire; the anode of the first capacitor is led out of the metal casing to serve as the grounding terminal of the three-terminal capacitor though a wire after being connected with the cathode of the second capacitor. According to the single-casing double-body three-terminal capacitor and the power circuit, the metal casing is arranged to realize a waveguide tube shielding function in the capacitor, reduce the interference of external radio frequency to positive and negative powers and improve the purity of the power, so that the quality of digital audios and videos is improved.
Description
Technical field
The present invention relates to the technical field of electronic device, particularly a kind of monoshell binary three terminal capacitor and power circuit.
Background technology
Electric capacity (also claiming capacitor) forms by pressing from both sides one deck insulation dielectric between two blocks of metal electrodes, when adding voltage between two metal electrodes, will stored charge on electrode, and electric capacity has in circuit and cuts off direct current and the effect by alternating current.Therefore, electric capacity, as a kind of important electronic devices and components, is usually used in interstage coupling in circuit, filtering, decoupling, bypass and signal tuning etc.
Along with the rapid raising of electronics industry equipment operating frequency, the frequency of voltage and electric current is more and more higher (usual frequency can reach hundreds of MHz and more than GHz), thus causes the problem of radiated interference day by day serious.Meanwhile, along with the raising of electronic equipment measure of precision and complexity, the situation that the mixing of device interior strong and weak electricity is installed, Digital Logical Circuits mixing is installed gets more and more, and the mutual harassing and wrecking between circuit module also become serious problem.For solving the problem, having occurred can the feedthrough capacitor of filtering radio frequency interference, and it utilizes to be arranged on metal decking and to play high-frequency isolation effect.But, because the weakness that feedthrough capacitor is maximum is afraid of high temperature and temperature shock, therefore, above-mentioned feedthrough capacitor is being easy to be damaged in welding process on metal decking, and when needing a large amount of electric capacity to be installed on panel, as long as there is a capacitance damage, the capacitance damage of closing on can be caused when removing damaged electric capacity.
Another kind of solution adopts metal cofferdam to be kept apart by circuit of different nature, but the program needs a large amount of lines and technological requirement, the filter array usually adopting special process to manufacture or connector, but considerably increase manufacturing cost undoubtedly like this; And, even if combined by above-mentioned two schemes, namely adopt feedthrough capacitor use cofferdam, array or connector to carry out circuit isolation of different nature, but for particularly power supply part in same circuit, still there is the radio frequency interference of part and part.
Summary of the invention
The present invention proposes a kind of monoshell binary three terminal capacitor and power circuit, and it can play the effect of waveguide shielding to electric capacity, reduce the interference that positive-negative power is subject to extraneous radio frequency, improve the degree of purity of power supply.
For achieving the above object, the invention provides a kind of monoshell binary three terminal capacitor, it comprises a metal shell and is contained in the first electric capacity, the second electric capacity in described metal shell, the negative pole of described first electric capacity draws the negative pole end of described metal shell as three terminal capacitor by wire, the positive pole of described second electric capacity draws the positive terminal of described metal shell as three terminal capacitor by wire, draws the earth terminal of described metal shell as three terminal capacitor after the negative pole of described second electric capacity of positive pole connection of described first electric capacity by wire.
Further, in above-mentioned monoshell binary three terminal capacitor, the positive terminal of described three terminal capacitor, negative pole end and earth terminal are drawn by a side of metal shell, and the both positive and negative polarity of described first electric capacity and the both positive and negative polarity of the second electric capacity are all towards described side.
Further, in above-mentioned monoshell binary three terminal capacitor, the both positive and negative polarity of described first electric capacity and be filled with insulating material between the both positive and negative polarity of the second electric capacity and the side of metal shell.
Further, in above-mentioned monoshell binary three terminal capacitor, described insulating material is rubber.
Further, in above-mentioned monoshell binary three terminal capacitor, the positive pole of described first electric capacity and the negative pole of described second electric capacity are oppositely arranged.
Further, in above-mentioned monoshell binary three terminal capacitor, described first electric capacity and the second electric capacity are electric capacity of the same race, and described electric capacity of the same race is including, but not limited to electrochemical capacitor and ceramic disc capacitor.
Separately, the present invention also provides a kind of power circuit, and described power circuit comprises above-mentioned monoshell binary three terminal capacitor.
Monoshell binary three terminal capacitor of the present invention and power circuit to play the effect of waveguide shielding to electric capacity by arranging metal shell, decrease the interference that positive-negative power is subject to extraneous radio frequency, improve the degree of purity of power supply, thus improve the quality of digital audio video.
Accompanying drawing explanation
Fig. 1 is the structural representation of monoshell binary three terminal capacitor first embodiment of the present invention;
Fig. 2 is the structural representation of monoshell binary three terminal capacitor second embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of monoshell binary three terminal capacitor, it comprises a metal shell and is contained in the first electric capacity, the second electric capacity in described metal shell, the negative pole of described first electric capacity draws the negative pole end of described metal shell as three terminal capacitor by wire, the positive pole of described second electric capacity draws the positive terminal of described metal shell as three terminal capacitor by wire, draws the earth terminal of described metal shell as three terminal capacitor after the negative pole of described second electric capacity of positive pole connection of described first electric capacity by wire.Like this, by described metal shell, electric capacity is played to the effect of waveguide shielding, reduce the interference that positive-negative power is subject to extraneous radio frequency, improve the degree of purity of power supply, thus improve the quality of digital audio video.
Refer to Fig. 1, Fig. 1 is the structural representation of monoshell binary three terminal capacitor first embodiment of the present invention.In the present embodiment, described first electric capacity, the second electric capacity are electrochemical capacitor.Described monoshell binary three terminal capacitor comprises a metal shell 10 and is contained in the first electric capacity 20, second electric capacity 30 in described metal shell 10, the negative pole of described first electric capacity 20 draws the negative pole end of described metal shell 10 as three terminal capacitor by wire, the positive pole of described second electric capacity 30 draws the positive terminal of described metal shell 10 as three terminal capacitor by wire, draws the earth terminal of described metal shell 10 as three terminal capacitor after the negative pole of described second electric capacity 30 of positive pole connection of described first electric capacity 20 by wire.
In the present embodiment, the positive terminal of described three terminal capacitor, negative pole end and earth terminal are drawn by a side 102 of metal shell 10, and the both positive and negative polarity of described first electric capacity 20 and the both positive and negative polarity of the second electric capacity 30 are all towards described side 102.And, the both positive and negative polarity of described first electric capacity 20 and be filled with insulating material 40 between the both positive and negative polarity of the second electric capacity 30 and the side 102 of metal shell 10.In the present embodiment, described insulating material 40 is rubber.
In the present embodiment, the positive pole of described first electric capacity 20 and the negative pole of described second electric capacity 30 are oppositely arranged, namely the two poles of the earth polarity that described first electric capacity 20 is relative with the second electric capacity 30 is contrary, facilitates the cabling of the extraction wire of the positive terminal of three terminal capacitor, negative pole end and earth terminal like this; Certainly, the positive pole of described first electric capacity 20 and the positive pole of described second electric capacity 30 are oppositely arranged, and the two poles of the earth polarity that namely described first electric capacity 20 is relative with the second electric capacity 30 is identical.
Refer to Fig. 2, Fig. 2 is the structural representation of monoshell binary three terminal capacitor second embodiment of the present invention.In the present embodiment, described first electric capacity, the second electric capacity are ceramic disc capacitor.Described monoshell binary three terminal capacitor comprises a metal shell 10 ' and is contained in the first electric capacity 20 ', the second electric capacity 30 ' in described metal shell 10 ', the negative pole of described first electric capacity 20 ' draws the negative pole end of described metal shell 10 ' as three terminal capacitor by wire, the positive pole of described second electric capacity 30 ' draws the positive terminal of described metal shell 10 ' as three terminal capacitor by wire, draws the earth terminal of described metal shell 10 ' as three terminal capacitor after the negative pole of described second electric capacity 30 ' of positive pole connection of described first electric capacity 20 ' by wire.
In the present embodiment, the positive terminal of described three terminal capacitor, negative pole end and earth terminal are drawn by a side 102 ' of metal shell 10 ', and the both positive and negative polarity of described first electric capacity 20 ' and the both positive and negative polarity of the second electric capacity 30 ' are all towards described side 102 '.And, the both positive and negative polarity of described first electric capacity 20 ' and be filled with insulating material 40 ' between the both positive and negative polarity of the second electric capacity 30 ' and the side 102 ' of metal shell 10 '.In the present embodiment, described insulating material 40 ' is rubber.
In the present embodiment, the positive pole of described first electric capacity 20 ' and the negative pole of described second electric capacity 30 ' are oppositely arranged, namely the two poles of the earth polarity that described first electric capacity 20 ' is relative with the second electric capacity 30 ' is contrary, facilitates the cabling of the extraction wire of the positive terminal of three terminal capacitor, negative pole end and earth terminal like this; Certainly, the positive pole of described first electric capacity 20 ' and the positive pole of described second electric capacity 30 ' are oppositely arranged, and the two poles of the earth polarity that namely described first electric capacity 20 ' is relative with the second electric capacity 30 ' is identical.
It should be noted that, in the present invention, the first electric capacity and the second electric capacity are not limited to electrochemical capacitor and ceramic disc capacitor, can also be the electric capacity of other kinds such as solid capacitance.
In addition, the present invention also provides a kind of power circuit comprising above-mentioned monoshell binary three terminal capacitor.
Compared to prior art, the present invention by arrange metal shell to electric capacity play waveguide shielding effect, decrease the interference that positive-negative power is subject to extraneous radio frequency, improve the degree of purity of power supply, thus improve the quality of digital audio video.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or substantive characteristics, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (7)
1. a monoshell binary three terminal capacitor, it is characterized in that, it comprises a metal shell and is contained in the first electric capacity, the second electric capacity in described metal shell, the negative pole of described first electric capacity draws the negative pole end of described metal shell as three terminal capacitor by wire, the positive pole of described second electric capacity draws the positive terminal of described metal shell as three terminal capacitor by wire, draws the earth terminal of described metal shell as three terminal capacitor after the negative pole of described second electric capacity of positive pole connection of described first electric capacity by wire.
2. monoshell binary three terminal capacitor according to claim 1, it is characterized in that, the positive terminal of described three terminal capacitor, negative pole end and earth terminal are drawn by a side of metal shell, and the both positive and negative polarity of described first electric capacity and the both positive and negative polarity of the second electric capacity are all towards described side.
3. monoshell binary three terminal capacitor according to claim 2, is characterized in that, the both positive and negative polarity of described first electric capacity and be filled with insulating material between the both positive and negative polarity of the second electric capacity and the side of metal shell.
4. monoshell binary three terminal capacitor according to claim 3, is characterized in that, described insulating material is rubber.
5. monoshell binary three terminal capacitor according to claim 4, is characterized in that, the positive pole of described first electric capacity and the negative pole of described second electric capacity are oppositely arranged.
6. monoshell binary three terminal capacitor according to claim 1, is characterized in that, described first electric capacity and the second electric capacity are electric capacity of the same race, and described electric capacity of the same race is including, but not limited to electrochemical capacitor and ceramic disc capacitor.
7. a power circuit, is characterized in that, described power circuit comprises the monoshell binary three terminal capacitor as described in any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114783.0A CN104637672A (en) | 2015-03-17 | 2015-03-17 | Single-casing double-body three-terminal capacitor and power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114783.0A CN104637672A (en) | 2015-03-17 | 2015-03-17 | Single-casing double-body three-terminal capacitor and power circuit |
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| CN104637672A true CN104637672A (en) | 2015-05-20 |
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| CN201510114783.0A Pending CN104637672A (en) | 2015-03-17 | 2015-03-17 | Single-casing double-body three-terminal capacitor and power circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111785518A (en) * | 2020-07-10 | 2020-10-16 | 重庆市药品技术审评认证中心 | Filter capacitor structure and filter with same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733206A (en) * | 1984-09-04 | 1988-03-22 | Siemens Aktiengesellschaft | Connector plug with an integrated electrical radio frequency suppression filter |
| CN204390911U (en) * | 2015-03-17 | 2015-06-10 | 陈坚胜 | Monoshell binary three terminal capacitor and power circuit |
-
2015
- 2015-03-17 CN CN201510114783.0A patent/CN104637672A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733206A (en) * | 1984-09-04 | 1988-03-22 | Siemens Aktiengesellschaft | Connector plug with an integrated electrical radio frequency suppression filter |
| CN204390911U (en) * | 2015-03-17 | 2015-06-10 | 陈坚胜 | Monoshell binary three terminal capacitor and power circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111785518A (en) * | 2020-07-10 | 2020-10-16 | 重庆市药品技术审评认证中心 | Filter capacitor structure and filter with same |
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Application publication date: 20150520 |
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