CN105529189A - Three-level thin film capacitor - Google Patents
Three-level thin film capacitor Download PDFInfo
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- CN105529189A CN105529189A CN201410709387.8A CN201410709387A CN105529189A CN 105529189 A CN105529189 A CN 105529189A CN 201410709387 A CN201410709387 A CN 201410709387A CN 105529189 A CN105529189 A CN 105529189A
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Abstract
The invention discloses a three-level thin film capacitor. The three-level thin film capacitor comprises a shell, capacitor cores, positive electrode busbars, negative electrode busbars, neutral electrode busbars, first connecting pieces connected with the positive electrode busbars, second connecting pieces connected with the negative electrode busbars, third connecting pieces connected with the neutral electrode busbars, first electrode terminals connected with the positive electrode busbars, second electrode terminals connected with the negative electrode busbars and third electrode terminals connected with the neutral electrode busbars, wherein the capacitor cores, the positive electrode busbars, the negative electrode busbars, the neutral electrode busbars, the first connecting pieces, the second connecting pieces and the third connecting pieces are arranged in the shell and sealed by encapsulating insulating bodies; among the multiple groups of the capacitor cores, the positive electrodes of each group of the capacitor cores in certain groups are connected with the first connecting pieces in parallel through the positive electrode busbars, while the negative electrodes of each group of the capacitor cores in the rest groups are connected with the second connecting pieces in parallel through the negative electrode busbars; and the multiple groups of capacitor cores are connected with the third connecting pieces in series through the neutral electrode busbars.
Description
Technical field
The present invention relates to a kind of capacitor, relate to a kind of film capacitor particularly, relate more specifically to a kind of three level film capacitor for electric automobile.
Background technology
The film capacitor of such as metallic film capacitor has the good characteristic of low-loss, high pressure resistant, temperature characterisitic and frequency characteristic.
Metallization film capacitor in correlation technique can only be arranged separately usually, and capacitance is little, or multiple metallization film capacitor syndeton is complicated, there is inconvenient problem with use.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, the present invention proposes a kind of three level film capacitor, and this three level is simple by film capacitor syndeton, easy to assembly.
According to the three level film capacitor of the embodiment of the present invention, comprise housing, capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, the first brace be connected with positive pole busbar, the second brace be connected with cathode bus bar, the 3rd brace be connected with middle pole busbar, the first electrode terminal be connected with positive pole busbar, the second electrode terminal be connected with cathode bus bar and the third electrode terminal be connected with middle pole busbar, described capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, first brace, second brace and the 3rd brace to be located in described housing and by embedding insulator seal, described capacitor body comprises many groups, the positive pole of each the group capacitor fuse in part group is connected in parallel to each other by described positive pole busbar and the first brace, the negative pole of each the group capacitor fuse in remaining set is connected in parallel to each other by shown cathode bus bar and the second brace, and described multiple unit capacitor fuse is one another in series by described middle pole busbar and the 3rd brace.Wherein, middle pole busbar connects two group capacitor fuses respectively by housing side.
According to the three level film capacitor of the embodiment of the present invention, respectively capacitor body is connected into many groups that are set up in parallel by positive pole busbar and cathode bus bar, and multiple unit capacitor fuse can be cascaded by middle pole busbar, not only structure is simple, easy to assembly, easily multiple unit capacitor fuse can be cascaded, and the integral capacitor amount of capacitor can be improved, be applicable to three-level structure, the scope of application is extensive.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the three level film capacitor according to the embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the end view of Fig. 1.
Reference numeral:
Film capacitor 100;
Positive pole busbar 20; First electrode terminal 21; First brace 22; First splicing ear 221;
Cathode bus bar 30; Second electrode terminal 31; Second brace 32; Second splicing ear 321;
Middle pole busbar 40; Third electrode terminal 41; Flange 42;
Capacitor body 50.
Embodiment
Be 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 element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
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, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is 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, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
The three level film capacitor 100 according to the embodiment of the present invention is specifically described below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, housing, capacitor body 50, positive pole busbar 20, cathode bus bar 30, middle pole busbar 40, the first brace 22 be connected with positive pole busbar 20, the second brace 32 of being connected with cathode bus bar 30 is comprised, the 3rd brace be connected with middle pole busbar 40, the first electrode terminal 21 be connected with positive pole busbar 20, the second electrode terminal 31 be connected with cathode bus bar 30 and the third electrode terminal 41 be connected with middle pole busbar 40 according to the three level film capacitor 100 of the embodiment of the present invention.
Specifically, capacitor body 50, positive pole busbar 20, cathode bus bar 30, middle pole busbar 40, first brace 22, second brace 32 and the 3rd brace to be located in housing and by embedding insulator seal, capacitor body 50 comprises many groups, the positive pole of each the group capacitor fuse 50 in part group is connected in parallel to each other by positive pole busbar 20 and the first brace 22, the negative pole of each the group capacitor fuse 50 in remaining set is connected in parallel to each other by cathode bus bar 30 and the second brace 32, multiple unit capacitor fuse 50 is one another in series by middle pole busbar 40 and the 3rd brace.
In other words, as shown in Figure 1, three level film capacitor 100 comprises at least two capacitor core subgroups, one of them capacitor core subgroup comprises multiple capacitor body 50, the positive pole of multiple capacitor body 50 is connected with multiple first brace 22 respectively, multiple first brace 22 is connected with positive pole busbar 20 parallel to each other, thus realizes the parallel connection between multiple capacitor body 50.Another capacitor core subgroup be disposed adjacent with this capacitor core subgroup also comprises multiple capacitor body 50, the negative pole of multiple capacitor body 50 is connected with multiple second brace 32 respectively, multiple second brace 32 is connected with cathode bus bar 30 parallel to each other, thus realizes the parallel connection between multiple capacitor body 50.
Wherein, the negative pole of the multiple capacitor bodies 50 in the capacitor core subgroup that the positive pole of capacitor body 50 is connected with the first brace 22 is connected with multiple 3rd brace respectively, the positive pole of the multiple capacitor bodies 50 in the capacitor core subgroup that the negative pole of capacitor body 50 is connected with the second brace 32 is connected with multiple 3rd brace respectively, multiple 3rd brace is connected with middle pole busbar 40 parallel to each other, thus can realize the series connection of two capacitor core subgroups
Thus, according to the three level film capacitor 100 of the embodiment of the present invention, respectively capacitor body 50 is connected into many groups that are set up in parallel by positive pole busbar 20 and cathode bus bar 30, and multiple unit capacitor fuse 50 can be cascaded by middle pole busbar 40, not only structure is simple, easy to assembly, easily multiple unit capacitor fuse 50 can be cascaded, and the integral capacitor amount of capacitor can be improved, be applicable to three-level structure, the scope of application is extensive.
According to one embodiment of present invention, in the group that the positive pole of capacitor body 50 is connected in parallel to each other by positive pole busbar 20 and the first brace 22, positive pole busbar 20 and the first brace 22 are positioned at the first side of this group capacitor fuse 50, in the group that the negative pole of capacitor body 50 is connected in parallel to each other by cathode bus bar 30 and the second brace 32, cathode bus bar 30 and the second brace 32 are positioned at the first side of this group capacitor fuse 50, and middle pole busbar 40 and the 3rd brace are positioned at the second side of capacitor core subgroup.
That is, the positive pole of the multiple capacitor bodies 50 in the capacitor core subgroup that the positive pole of capacitor body 50 is connected with the first brace 22 lays respectively at the same side, i.e. the first side of this capacitor core subgroup, positive pole busbar 20 and multiple first braces 22 be connected with positive pole busbar 20 are also positioned at this first side and are connected with the positive pole of multiple capacitor body 50.
The negative pole of the multiple capacitor bodies 50 in the capacitor core subgroup that the negative pole of capacitor body 50 is connected with the second brace 32 also lays respectively at the first side, and cathode bus bar 30 and multiple second braces 32 be connected with cathode bus bar 30 are also positioned at this first side and are connected with the negative pole of multiple capacitor body 50.
Namely in two capacitor core subgroups be disposed adjacent, the positive pole of a capacitor core subgroup and the negative pole of another capacitor core subgroup are positioned at the same side, middle pole busbar 40 and the 3rd brace are then positioned at the opposite side of the capacitor core subgroup that these two are disposed adjacent, and wherein a part the 3rd brace is connected with the negative pole of a capacitor core subgroup, and another part the 3rd brace is connected with the positive pole of another capacitor core subgroup.
Thus, positive pole busbar 20 and cathode bus bar 30 are located at the same side by the three level film capacitor 100 of this structure, the capacitor core subgroup that opposite side then only needs a middle pole busbar 40 two can be disposed adjacent is together in series, syndeton is rationally ingenious, and while easy to assembly, can reduce and take up room, use more convenient.
The arrangement of capacitor body 50 can carry out reasonable adjusting according to the structure of three level, alternatively, according to one embodiment of present invention, the linear arrangement of multiple unit capacitor fuse 50, each group capacitor fuse 50 is arranged in multiple row and each row comprises at least one deck.Preferably, capacitor body 50 is two groups, and each group comprises multiple row and each row comprises two-layer.
As shown in Figure 1, the linear arrangement respectively of the capacitor body 50 in two capacitor core subgroups be disposed adjacent, and the also linear arrangement of all capacitor bodies 50 of two capacitor core subgroups.Wherein, the capacitor body 50 in each capacitor core subgroup is arranged in multiple row along its linear direction, and each row comprises at least one deck.In preferred versions more of the present invention, three level film capacitor 100 comprises two capacitor core subgroups, and the capacitor body 50 in each capacitor core subgroup comprises two-layer.Thus, ensureing, on basis rational in infrastructure, easy to assembly, the capacitance of three level film capacitor 100 to be improved further.
In embodiments more of the present invention, each in positive pole busbar 20, cathode bus bar 30 and middle pole busbar 40 all has the flange 42 on the upper surface being folded to capacitor core subgroup.
Particularly, as shown in Figure 1, the top of positive pole busbar 20 and cathode bus bar 30 is provided with towards the busbar 40 direction bending of middle pole and the flange 42 of a part for the upper surface of coated capacitor body 50, and the top of middle pole busbar 40 is provided with towards positive pole busbar 20 and cathode bus bar 30 direction bending and the flange 42 of another part of the upper surface of coated capacitor body 50.Thus, by arranging flange 42 structure respectively on positive pole busbar 20, cathode bus bar 30 and middle pole busbar 40, effectively can improve the stability that positive pole busbar 20, cathode bus bar 30 and middle pole busbar 40 assembles with capacitor body 50, and easily locate in assembling process, improve efficiency of assembling.
According to one embodiment of present invention, the periphery of the first brace 22 is along being provided with the periphery of the first splicing ear 221, second brace 32 along being provided with the periphery of the second splicing ear the 321, three brace along being provided with the 3rd splicing ear.Further, first splicing ear 221 is that multiple and along the first brace 22 periphery is arranged along interval, second splicing ear 321 is that multiple and along the second brace 32 periphery is arranged along interval, and the 3rd splicing ear is that multiple and along the 3rd brace periphery is arranged along interval.
That is, the periphery of the first brace 22 is along being provided with multiple first splicing ear 221 arranged spaced apart, the periphery of the second connecting portion is along being provided with multiple second splicing ear 321 arranged spaced apart, the periphery of the 3rd connecting portion is along being provided with multiple 3rd splicing ear arranged spaced apart, and the first brace 22, second brace 32 and the 3rd brace are all weldingly connected by splicing ear and corresponding capacitor body 50.Thus, each brace is all weldingly connected by splicing ear and capacitor body 50, facilitates Automation of Welding, the quality of effective improving product and efficiency of assembling.
Alternatively, according to one embodiment of present invention, the first brace 22 and the first splicing ear 221 are integrally formed, and the second brace 32 and the second splicing ear 321 are integrally formed, and the 3rd brace and the 3rd splicing ear are integrally formed.Further, the first brace 22 is integrally formed with positive pole busbar 20, and the second brace 32 is integrally formed with cathode bus bar 30, and the 3rd brace and middle pole busbar 40 are integrally formed.
That is, positive pole busbar 20 and the first brace 22 and the first splicing ear 221 are integrally formed, and cathode bus bar 30 and the second brace 32 and the second splicing ear 321 are integrally formed, and middle pole busbar 40 and the 3rd brace and the 3rd splicing ear are integrally formed.Thus, the structure be integrally formed not only ensure that the overall structure stability of three level film capacitor 100, and shaping and easy to assembly, reduces preparation cost while improving efficiency of assembling.
According to the three level film capacitor 100 of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
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 to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (9)
1. a three level film capacitor, it is characterized in that, comprise housing, capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, the first brace be connected with positive pole busbar, the second brace of being connected with cathode bus bar, the 3rd brace be connected with middle pole busbar, the first electrode terminal be connected with positive pole busbar, the second electrode terminal be connected with cathode bus bar and the third electrode terminal be connected with middle pole busbar
Described capacitor body, positive pole busbar, cathode bus bar, middle pole busbar, the first brace, the second brace and the 3rd brace to be located in described housing and by embedding insulator seal,
Described capacitor body comprises first group and second group, described first group capacitor fuse and described second group capacitor fuse be arranged in parallel, first end face of described first group capacitor fuse and the first end face of described second group capacitor fuse are positioned at the first end of described first group capacitor fuse and the second group capacitor fuse, described positive pole busbar and described cathode bus bar are positioned at the first end of described first group capacitor fuse and the second group capacitor fuse, described middle pole busbar is positioned at the second end of described first group capacitor fuse and the second group capacitor fuse
First end face of described first group capacitor fuse is electrically connected with positive pole busbar and the first brace, and the second end face of described first group capacitor fuse is electrically connected with middle pole busbar and the 3rd brace; First end face of described second group capacitor fuse is electrically connected with cathode bus bar and the second brace, second end face of described second group capacitor fuse is electrically connected with middle pole busbar and the 3rd brace, capacitor body in described first group capacitor fuse is connected in parallel each other, 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 film capacitor according to claim 1, it is characterized in that, in the group that the positive pole of described capacitor body is connected in parallel to each other by described positive pole busbar and the first brace, described positive pole busbar and described first brace are positioned at the first side of this group capacitor fuse, in the group that the negative pole of described capacitor body is connected in parallel to each other by described cathode bus bar and the second brace, described cathode bus bar and described second brace are positioned at the first side of this group capacitor fuse, and described middle pole busbar and described 3rd brace are positioned at the second side of described capacitor core subgroup.
3. three level film capacitor according to claim 2, is characterized in that, the linear arrangement of described multiple unit capacitor fuse, and each group capacitor plug arrangement becomes multiple row and each row comprises at least one deck.
4. three level film capacitor according to claim 3, is characterized in that, described capacitor body is two groups, and each group comprises multiple row and each row comprises two-layer.
5. the three level film capacitor according to any one of claim 2-4, is characterized in that, each in described positive pole busbar, cathode bus bar and described middle pole busbar all has the flange on the upper surface being folded to described capacitor core subgroup.
6. three level film capacitor according to claim 1, it is characterized in that, the periphery of described first brace is along being provided with the first splicing ear, and the periphery of described second brace is along being provided with the second splicing ear, and the periphery of described 3rd brace is along being provided with the 3rd splicing ear.
7. three level film capacitor according to claim 6, it is characterized in that, described first brace and the first splicing ear are integrally formed, and described second brace and the second splicing ear are integrally formed, and described 3rd brace and the 3rd splicing ear are integrally formed.
8. three level film capacitor according to claim 6, it is characterized in that, described first splicing ear is that multiple and along described first brace periphery is arranged along interval, described second splicing ear is that multiple and along described second brace periphery is arranged along interval, and described 3rd splicing ear is that multiple and along described 3rd brace periphery is arranged along interval.
9. three level film capacitor according to claim 1, is characterized in that, described first brace and positive pole busbar are integrally formed, and described second brace and cathode bus bar are integrally formed, and described 3rd brace and middle pole busbar are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709387.8A CN105529189B (en) | 2014-11-28 | 2014-11-28 | Three level thin film capacitors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709387.8A CN105529189B (en) | 2014-11-28 | 2014-11-28 | Three level thin film capacitors |
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| Publication Number | Publication Date |
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| CN105529189A true CN105529189A (en) | 2016-04-27 |
| CN105529189B CN105529189B (en) | 2016-11-23 |
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| CN201410709387.8A Active CN105529189B (en) | 2014-11-28 | 2014-11-28 | Three level thin film capacitors |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110149472A1 (en) * | 2009-12-21 | 2011-06-23 | Nuintek Co., Ltd. | Method of connecting busbars with capacitor and product manufactured by the same method |
| 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 CN201410709387.8A patent/CN105529189B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110149472A1 (en) * | 2009-12-21 | 2011-06-23 | Nuintek Co., Ltd. | Method of connecting busbars with capacitor and product manufactured by the same method |
| 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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| Publication number | Publication date |
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| CN105529189B (en) | 2016-11-23 |
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