Three-level film capacitors
A film capacitor, three-level technology, applied in multiple fixed capacitors, fixed capacitor terminals, fixed capacitor components and other directions, can solve the problems of complex connection structure, inconvenient use and small capacitance of metallized film capacitors , to achieve the effect of wide range of use, convenient assembly, and improved overall capacitance
Active Publication Date: 2018-03-13
BYD CO LTD
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Problems solved by technology
[0003] The metallized film capacitors in the related art can usually only be set separately, the capacitance is small, or the connection structure of multiple metallized film capacitors is complicated, and there is a problem of inconvenient use
Method used
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[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0021] In describing the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...
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The invention discloses a three-level film capacitor, which comprises a shell, a capacitor core, a positive busbar, a negative busbar, a middle pole busbar, a first connecting piece connected to the positive busbar, and a first connecting piece connected to the negative busbar. The second connection piece, the third connection piece connected with the middle pole busbar, the first electrode terminal connected with the positive pole busbar, the second electrode terminal connected with the negative pole busbar and the third electrode connected with the middle pole busbar Terminals, the capacitor core includes the first group and the second group, the positive poles of the first group of capacitor cores are connected in parallel with each other through the positive busbar and the first connecting piece, and the negative poles of the second group of capacitor cores are connected through the negative busbar and the second The plates are connected in parallel with each other, and the negative poles of the first group of capacitor cores and the positive poles of the second group of capacitor cores are connected in series with each other through the middle pole busbar and the third connection plate respectively located on the second end faces of the first group and the second group of capacitor cores .
Description
technical field [0001] The present invention relates to a capacitor, in particular to a film capacitor, and more particularly to a three-level film capacitor for electric vehicles. Background technique [0002] Film capacitors such as metallized film capacitors have characteristics of low loss, high voltage resistance, temperature characteristics, and frequency characteristics. [0003] The metallized film capacitors in the related art usually can only be installed separately, and the capacitance is small, or the connection structure of multiple metallized film capacitors is complicated, and there is a problem of inconvenient use. Contents of the invention [0004] The present invention aims to solve one of the above-mentioned technical problems at least to a certain extent. [0005] Therefore, the present invention proposes a three-level film capacitor, which has a simple connection structure and convenient assembly. [0006] The three-level film capacitor according to ...
Claims
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IPC IPC(8): H01G4/38H01G4/228
Inventor 杨玮刘斯源林秀志
Owner BYD CO LTD