CN105702459A - Three-level thin film capacitor - Google Patents
Three-level thin film capacitor Download PDFInfo
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- CN105702459A CN105702459A CN201410709366.6A CN201410709366A CN105702459A CN 105702459 A CN105702459 A CN 105702459A CN 201410709366 A CN201410709366 A CN 201410709366A CN 105702459 A CN105702459 A CN 105702459A
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Abstract
The present invention discloses a three-level thin film capacitor which comprises a housing, capacitor cores, a positive busbar, a negative busbar, a neutral busbar, a first connecting piece which is connected to the positive busbar, a second connecting piece which is connected to the negative busbar, a third connecting piece which is connected to the neutral busbar, a first electrode terminal which is connected to the positive busbar, a second electrode terminal which is connected to the negative busbar, and a third electrode terminal which is connected to the neutral busbar. The capacitor cores comprise a first group and a second group. The positive electrodes of the first group of capacitor cores and the first connecting piece are mutually connected in parallel through the positive busbar. The negative electrodes of the second group of capacitor cores and the second connecting piece are mutually connected in parallel through the negative busbar. The negative electrodes of the first group of capacitor cores and the positive electrodes of the second group of capacitor cores are in mutual series connection with the third connecting piece through the neutral busbar at the second end faces of the first group and second group of capacitor cores.
Description
Technical field
The present invention relates to a kind of capacitor, more particularly to a kind of thin film capacitor, relate more specifically to a kind of three level thin film capacitors for electric automobile。
Background technology
The thin film capacitor of such as metallic film capacitor has the characteristic that low-loss, high pressure resistant, temperature characterisitic and frequency characteristic are good。
Metallization film capacitor in correlation technique is typically only capable to be separately provided, and capacitance is little, or multiple metallization film capacitor attachment structure is complicated, there is inconvenient problem with use。
Summary of the invention
It is contemplated that solve one of above-mentioned technical problem at least to a certain extent。
For this, the present invention proposes a kind of three level thin film capacitors, and this three level is simple by thin film capacitor attachment structure, easy to assembly。
Three level thin film capacitors according to embodiments of the present invention, including housing, capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, the a connecting piece being connected with positive pole busbar, second be connected with cathode bus bar is connected sheet, the 3rd be connected with middle pole busbar is connected sheet, the first electrode terminal being connected with positive pole busbar, the second electrode terminal being connected with cathode bus bar and the 3rd electrode terminal being connected with middle pole busbar, described capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, a connecting piece, second connection sheet and the 3rd connects sheet and is located in described housing and by embedding insulator seal, described capacitor body includes first group and second group, first end face of described first group capacitor fuse is relative to each other with the first end face of described second group capacitor fuse, the positive pole of described first group capacitor fuse is connected in parallel to each other by being positioned at described positive pole busbar on the second end face of this group capacitor fuse and a connecting piece, the negative pole of described second group capacitor fuse connects sheet by the described cathode bus bar and second being positioned on the second end face of this group capacitor fuse and is connected in parallel to each other, the negative pole of described first group capacitor fuse and the positive pole of described second group capacitor fuse connect sheet be one another in series by laying respectively at the described middle pole busbar and the 3rd of the first end face of described first group and the second group capacitor fuse。
Three level thin film capacitors according to embodiments of the present invention, by positive pole busbar and cathode bus bar, respectively capacitor body is connected into two groups be set up in parallel, and middle pole busbar connects sheet by the 3rd and can be cascaded by two group capacitor fuses, it is not only simple in structure, easy to assembly, it is possible to easily multiple unit capacitor fuse to be cascaded, and the integral capacitor amount of capacitor can be improved, suitable in three-level structure, use in extensive range。
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention。
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the positive pole busbar assembling schematic diagram with capacitor body of three level thin film capacitors according to embodiments of the present invention；
Fig. 2 is the middle pole busbar assembling schematic diagram with capacitor body of three level thin film capacitors according to embodiments of the present invention；
Fig. 3 is the side view of three level thin film capacitors according to embodiments of the present invention。
Accompanying drawing labelling:
Thin film capacitor 100；
Housing 10；
Positive pole busbar 20；First electrode terminal 21；A connecting piece 22；First connects terminal 221；
Cathode bus bar 30；Second electrode terminal 31；
Middle pole busbar 40；3rd electrode terminal 41；3rd connects sheet 42；3rd connects terminal 421；
Capacitor body 60。
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish。The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention。
In describing the invention, it will be appreciated that, term " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention。Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic。Thus, define " first ", the feature of " second " can express or implicitly include one or more these features。In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically。
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals。For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be。
Three level thin film capacitor 100 according to embodiments of the present invention is specifically described below in conjunction with accompanying drawing。
As shown in Figure 1 to Figure 3, three level thin film capacitors 100 according to embodiments of the present invention include housing 10, capacitor body 60, positive pole busbar 20, cathode bus bar 30, middle pole busbar 40, a connecting piece 22 being connected with positive pole busbar 20, be connected with cathode bus bar 30 second is connected sheet, threeth connected with middle pole busbar 40 is connected sheet 42, the first electrode terminal 21 being connected with positive pole busbar 20, the second electrode terminal 31 being connected with cathode bus bar 30 and the 3rd electrode terminal 41 that is connected with middle pole busbar 40。
Specifically, capacitor body 60, positive pole busbar 20, cathode bus bar 30, middle pole busbar 40, a connecting piece the 22, second connection sheet and the 3rd connect sheet 42 and are located in housing 10 and by embedding insulator seal。
Capacitor body 60 includes first group and second group, first end face of the first group capacitor fuse 60 and the first end face of the second group capacitor fuse 60 are relative to each other, the positive pole of the first group capacitor fuse 60 is connected in parallel to each other by being positioned at positive pole busbar 20 on the second end face of this group capacitor fuse 60 and a connecting piece 22, the negative pole of the second group capacitor fuse 60 connects sheet be connected in parallel to each other by being positioned at cathode bus bar on the second end face of this group capacitor fuse 60 30 and second, the negative pole of the first group capacitor fuse 60 and the positive pole of the second group capacitor fuse 60 are one another in series by the middle pole busbar 40 and the 3rd connection sheet 42 laying respectively at the first end face of first group and the second group capacitor fuse 60。
In other words, as it is shown in figure 1, capacitor body 60 includes first group and second group separated along the longitudinal direction, wherein, the rear end face of the first group capacitor fuse 60 and the front end face of the second group capacitor fuse 60 are relative to each other。Positive pole busbar 20 is located on the front end face of the first group capacitor fuse 60, and positive pole busbar 20 is provided with multiple a connecting piece 22 being connected in parallel to each other, and multiple a connecting piece 22 are connected with the front end face of multiple capacitor bodies 60 of the first group capacitor fuse 60 respectively。
As shown in Figure 2, cathode bus bar 30 is located on the rear end face of the second group capacitor fuse 60, cathode bus bar 30 is provided with multiple the second connection sheet being connected in parallel to each other, and multiple second connects sheets is connected with the rear end face of multiple capacitor bodies 60 of the second group capacitor fuse 60 respectively。
As shown in Figure 3, middle pole busbar 40 is located in the middle of first group and the second group capacitor fuse 60, middle pole busbar 40 is provided with the 3rd connection sheet 42, a portion the 3rd connects the front of sheet 42 along being connected with the first group capacitor fuse 60 rear end face, another part the 3rd connects the front end face of the back edge of sheet 42 and the second group capacitor fuse 60 and is connected, thus realizing being connected in series of first group and the second group capacitor fuse 60。
Thus, three level thin film capacitor 100 according to embodiments of the present invention, by positive pole busbar 20 and cathode bus bar 30, respectively capacitor body 60 is connected into two groups be set up in parallel, and two group capacitor fuses 60 can be cascaded by middle pole busbar 40 by the 3rd connection sheet 42, is not only simple in structure, easy to assembly, easily multiple unit capacitor fuse 60 can be cascaded, and the integral capacitor amount of capacitor can be improved, it is adaptable to and three-level structure, use in extensive range。
According to one embodiment of present invention, middle pole busbar 40 is located between the first group capacitor fuse 60 and the second group capacitor fuse 60, and the 3rd connects sheet 42 is integrally formed as lamellar with middle pole busbar 40。That is, 3rd connection sheet 42 is the part that middle pole busbar 40 downwardly extends, middle pole busbar 40 and the 3rd connection sheet 42 are integrally formed into the laminated structure being located between the first group capacitor fuse 60 and the second group capacitor fuse 60, and the upper edge of middle pole busbar 40 upwardly extends formation the 3rd electrode terminal 41。Thus, the middle pole busbar 40 of this structure is not only rational in infrastructure, and molding and easy to assembly, reduce preparation cost。
The arrangement of capacitor body 60 can carry out reasonable adjusting according to the structure of three level, alternatively, as shown in Figure 1, according to one embodiment of present invention, each group capacitor fuse 60 in the first group capacitor fuse 60 and the second group capacitor fuse 60 is arranged in multiple row and every string includes at least one of which。Preferably, capacitor body 60 is two groups, and each group includes multiple row and every string includes two-layer。Thus, ensureing on basis rational in infrastructure, easy to assembly, it is possible to improve the three level capacitance of thin film capacitor 100 further。
According to one embodiment of present invention, the periphery of a connecting piece 22 is along being provided with the first connection terminal 221, and second connects the periphery of sheet along being provided with the second connection terminal, and the 3rd connects the periphery of sheet 42 along being provided with the 3rd connection terminal 421。Further, first connects terminal 221 can be multiple and arrange along the periphery of a connecting piece 22 along interval, second connects terminal can be multiple and arrange along interval along the second periphery connecting sheet, and the 3rd connects terminal 421 can be multiple and arrange along interval along the 3rd periphery connecting sheet 42。
That is, the periphery of a connecting piece 22 is along being provided with multiple first connection terminal 221 arranged spaced apart, the periphery of the second connecting portion is along being provided with multiple second connection terminal arranged spaced apart, the periphery of the 3rd connecting portion is along being provided with multiple 3rd connection terminal 421 arranged spaced apart, and a connecting piece 22, second connects sheet and the 3rd connection sheet 42 is weldingly connected with corresponding capacitor body 60 each through connecting terminal。Thus, each connection sheet is weldingly connected with capacitor body 60 each through connecting terminal, facilitates Automation of Welding, the quality of effective improving product and efficiency of assembling。
Alternatively, according to one embodiment of present invention, a connecting piece 22 is connected terminal 221 with first and is integrally formed, and the second connection sheet and second connects terminal and is integrally formed, and the 3rd connection sheet 42 is connected terminal 421 with the 3rd and is integrally formed。Further, a connecting piece 22 and positive pole busbar 20 are integrally formed, and second connects sheet is integrally formed with cathode bus bar 30, and the 3rd connects sheet 42 is integrally formed with middle pole busbar 40。
Being integrally formed it is to say, positive pole busbar 20 is connected terminal 221 with a connecting piece 22 and first, cathode bus bar 30 is connected sheet and second and connects terminal and be integrally formed with second, and middle pole busbar 40 is connected sheet 42 with the 3rd and the 3rd connection terminal 421 is integrally formed。Thus, integral part of structure not only ensure that the overall structure stability of three level thin film capacitors 100, and molding and easy to assembly, reduce preparation cost while improving efficiency of assembling。
Other compositions of three level thin film capacitors 100 according to embodiments of the present invention and operation are all known for those of ordinary skills, are not detailed herein。
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention。In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example。And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example。
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, being not considered as limiting the invention, above-described embodiment can be changed when without departing from principles of the invention and objective, revises, replace and modification by those of ordinary skill in the art within the scope of the invention。
Claims (7)
1. a level thin film capacitor, it is characterized in that, including housing, capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, a connecting piece being connected with positive pole busbar, second it is connected sheet with cathode bus bar is connected, the 3rd be connected with middle pole busbar is connected sheet, the first electrode terminal being connected with positive pole busbar, the second electrode terminal being connected with cathode bus bar and the 3rd electrode terminal being connected with middle pole busbar
Described capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, a connecting piece, the second connection sheet and the 3rd connect sheet and are located in described housing and by embedding insulator seal,
Described capacitor body includes first group and second group, first end face of described first group capacitor fuse is relative to each other with the first end face of described second group capacitor fuse, first end face of described first group capacitor fuse is connected sheet electrical connection with middle pole busbar and the 3rd, second end face electrically connects with positive pole busbar and a connecting piece, first end face of described second group capacitor fuse is connected sheet electrical connection with middle pole busbar and the 3rd, and the second end face of the second group capacitor fuse is connected sheet electrical connection with cathode bus bar and second；Capacitor body in described first group capacitor fuse is connected in parallel each other, and the capacitor body in described second group capacitor fuse is connected in parallel each other, and described first group capacitor fuse and the second group capacitor fuse are connected in series。
2. three level thin film capacitors according to claim 1, it is characterised in that described middle pole busbar is located between described first group capacitor fuse and the second group capacitor fuse, and described middle pole busbar is connected sheet with the described 3rd and is integrally formed as lamellar。
3. three level thin film capacitors according to claim 2, it is characterised in that described first group becomes multiple row and every string to include at least one of which with each group capacitor plug arrangement in second group。
4. three level thin film capacitors according to claim 3, it is characterised in that described capacitor body is two groups, each group includes multiple row and every string includes two-layer。
5. three level thin film capacitors according to claim 1, it is characterized in that, the periphery of described a connecting piece is along being provided with the first connection terminal, and described second connects the periphery of sheet along being provided with the second connection terminal, and the described 3rd connects the periphery of sheet along being provided with the 3rd connection terminal。
6. three level thin film capacitors according to claim 5, it is characterized in that, described a connecting piece and first connects terminal and is integrally formed, and described second connection sheet and second connects terminal and is integrally formed, and described 3rd connection sheet and the 3rd connects terminal and is integrally formed。
7. three level thin film capacitors according to claim 1, it is characterised in that described a connecting piece and positive pole busbar are integrally formed, described second connects sheet is integrally formed with cathode bus bar, and the described 3rd connects sheet is integrally formed with middle pole busbar。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709366.6A CN105702459B (en) | 2014-11-28 | 2014-11-28 | Three level thin film capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709366.6A CN105702459B (en) | 2014-11-28 | 2014-11-28 | Three level thin film capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105702459A true CN105702459A (en) | 2016-06-22 |
| CN105702459B CN105702459B (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410709366.6A Active CN105702459B (en) | 2014-11-28 | 2014-11-28 | Three level thin film capacitors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130310A (en) * | 2019-12-31 | 2020-05-08 | 西安华为技术有限公司 | Laminated busbar and electronic equipment |
| CN116844859A (en) * | 2023-02-08 | 2023-10-03 | 浙江七星电子股份有限公司 | DC supporting capacitor for electric drive of new energy automobile |
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| JP2009099884A (en) * | 2007-10-19 | 2009-05-07 | Toyota Motor Corp | Capacitor |
| US20110149472A1 (en) * | 2009-12-21 | 2011-06-23 | Nuintek Co., Ltd. | Method of connecting busbars with capacitor and product manufactured by the same method |
| CN102280247A (en) * | 2010-06-10 | 2011-12-14 | 现代自动车株式会社 | Capacitor for inverter of vehicle |
| JP2013251351A (en) * | 2012-05-31 | 2013-12-12 | Meidensha Corp | Capacitor |
| CN103986309A (en) * | 2014-05-23 | 2014-08-13 | 台达电子企业管理（上海）有限公司 | Direct-current capacitor module and laminated busbar structure thereof |
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2014
- 2014-11-28 CN CN201410709366.6A patent/CN105702459B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009099884A (en) * | 2007-10-19 | 2009-05-07 | Toyota Motor Corp | Capacitor |
| US20110149472A1 (en) * | 2009-12-21 | 2011-06-23 | Nuintek Co., Ltd. | Method of connecting busbars with capacitor and product manufactured by the same method |
| CN102280247A (en) * | 2010-06-10 | 2011-12-14 | 现代自动车株式会社 | Capacitor for inverter of vehicle |
| JP2013251351A (en) * | 2012-05-31 | 2013-12-12 | Meidensha Corp | Capacitor |
| CN103986309A (en) * | 2014-05-23 | 2014-08-13 | 台达电子企业管理（上海）有限公司 | Direct-current capacitor module and laminated busbar structure thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130310A (en) * | 2019-12-31 | 2020-05-08 | 西安华为技术有限公司 | Laminated busbar and electronic equipment |
| CN116844859A (en) * | 2023-02-08 | 2023-10-03 | 浙江七星电子股份有限公司 | DC supporting capacitor for electric drive of new energy automobile |
| CN116844859B (en) * | 2023-02-08 | 2024-05-14 | 浙江七星电子股份有限公司 | DC supporting capacitor for electric drive of new energy automobile |
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| Publication number | Publication date |
|---|---|
| CN105702459B (en) | 2018-03-13 |
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