CN105702456A - Film capacitor - Google Patents
Film capacitor Download PDFInfo
- Publication number
- CN105702456A CN105702456A CN201410709178.3A CN201410709178A CN105702456A CN 105702456 A CN105702456 A CN 105702456A CN 201410709178 A CN201410709178 A CN 201410709178A CN 105702456 A CN105702456 A CN 105702456A
- Authority
- CN
- China
- Prior art keywords
- capacitor body
- positive pole
- connecting piece
- busbar
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention discloses a film capacitor which comprises a housing, a capacitor core, a positive busbar, a negative busbar, a first connecting piece which is connected to the positive busbar, a second connecting piece which is connected to the negative busbar, a first electrode terminal which is connected to the positive busbar, and a second electrode terminal which is connected to the negative busbar. The capacitor core, the positive busbar, the negative busbar, the first connecting piece and the second connecting piece are arranged in the housing and are sealed through a potting insulator. The negative busbar is stacked on the positive busbar, and an insulation layer is arranged between the positive busbar and the negative busbar. The positive busbar is arranged on the capacitor core, the first connection piece is connected to the positive electrode of the capacitor core and is at the first end face of the capacitor core, and the second connection piece is connected to the negative electrode of the capacitor core and is at the second end face of the capacitor core opposite to the first end face. According to the film capacitor of the embodiment of the present invention, the automated welding is facilitated, and the manufacturing cost is saved.
Description
Technical field
The present invention relates to a kind of capacitor, in particular it relates to a kind of thin film capacitor。
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。
Document CN1714415B discloses a kind of metallization film capacitor。Two buses of this metallization film capacitor are connected with capacitor body and are located at the both sides of capacitor body relative to one another。Document CN202384178U discloses a kind of capacitor arrangement with inner laminate busbar, first and second busbars of this capacitor arrangement are L-shaped, bottom is stacked on top of each other together, and the sidewall of two busbars toward each other and is provided with weld part, and weld part welds with capacitor body。In above-mentioned capacitor, owing to busbar is located at the side of capacitor, therefore there is busbar and arrange that inconvenience, busbar heating are unfavorable for problems such as shedding, there is the demand of improvement。
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 thin film capacitor, and this thin film capacitor inductance is little, and design is simple, with low cost。
Thin film capacitor according to embodiments of the present invention, including: housing, capacitor body, positive pole busbar, cathode bus bar, the a connecting piece being connected with described positive pole busbar, second be connected with described cathode bus bar is connected sheet, the first electrode terminal being connected with described positive pole busbar and the second electrode terminal being connected with described cathode bus bar, described capacitor body, positive pole busbar, cathode bus bar, a connecting piece and second connects sheet and is located in described housing and by embedding insulator seal, described cathode bus bar is stacked on described positive pole busbar and is provided with insulating barrier between described positive pole busbar and described cathode bus bar, described positive pole busbar is placed in above described capacitor body, described a connecting piece is connected with the positive pole of described capacitor body and is positioned at the first end face of described capacitor body, described second connects second end face relative with described first end face that sheet is connected with the negative pole of described capacitor body and is positioned at described capacitor body。
Thin film capacitor according to embodiments of the present invention, a connecting piece and second is connected sheet and can be directly connected by welding procedure with capacitor body, facilitates Automation of Welding；Positive pole busbar, cathode bus bar and insulating barrier be stacked in capacitor body top, with IGBT draw terminal distance shorter, inductance is less, positive pole busbar and cathode bus bar design are simple, pressing can not be done by lamination place, does not result in both positive and negative polarity and connects, saves manufacturing cost。
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 structural representation of thin film capacitor according to embodiments of the present invention；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the side view of Fig. 1。
Accompanying drawing labelling:
Thin film capacitor 100；
Positive pole busbar 20；First electrode terminal 21；A connecting piece 22；First connects terminal 221；
Cathode bus bar 30；Second electrode terminal 31；Second connects sheet 32；Second connects terminal 321；
Insulating barrier 40；Capacitor body 50。
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。
Thin film capacitor 100 according to embodiments of the present invention is specifically described below in conjunction with accompanying drawing。
As shown in Figures 1 to 4, thin film capacitor 100 according to embodiments of the present invention include housing, capacitor body 50, positive pole busbar 20, cathode bus bar 30, a connecting piece 22 being connected with positive pole busbar 20, be connected with cathode bus bar 30 second be connected sheet 32, the first electrode terminal 21 being connected with positive pole busbar 20 and the second electrode terminal 31 being connected with cathode bus bar 30。
Specifically, capacitor body 50, positive pole busbar 20, cathode bus bar 30, a connecting piece 22 and the second connection sheet 32 are located in housing and by embedding insulator seal。Cathode bus bar 30 is stacked on positive pole busbar 20 and is provided with insulating barrier 40 between positive pole busbar 20 and cathode bus bar 30, positive pole busbar 20 is placed in above capacitor body 50, a connecting piece 22 is connected with the positive pole of capacitor body 50 and is positioned at the first end face of capacitor body 50, and second connects second end face relative with the first end face that sheet 32 is connected with the negative pole of capacitor body 50 and is positioned at capacitor body 50。
In other words, as shown in Figure 1, together with cathode bus bar 30, insulating barrier 40 are sequentially stacked along the vertical direction with positive pole busbar 20, insulating barrier 40 is located between positive pole busbar 20 and cathode bus bar 30 and both is insulated, a connecting piece 22 can be vertically connected with the back edge of positive pole busbar 20, second connects sheet 32 can with the front of cathode bus bar 30 along being vertically connected, and capacitor body 50 is located at a connecting piece 22 and second and connects between sheet 32。
Namely cathode bus bar 30 and positive pole busbar 20 are in the vertical direction by the spaced apart setting of insulating barrier 40, the back edge of a connecting piece 22 and positive pole busbar 20 is vertically connected, second connects the sheet 32 front with cathode bus bar 30 along being vertically connected, a connecting piece 22 and second connects sheet 32 setting spaced apart parallel along the longitudinal direction, capacitor body 50 is arranged along the longitudinal direction, a connecting piece 22 is positioned at the rear side of capacitor body 50 and is connected with the positive pole of capacitor body 50, and second connects sheet 32 is positioned at the front side of capacitor body 50 and is connected with the negative pole of capacitor body 50。
Thus, thin film capacitor 100 according to embodiments of the present invention, a connecting piece 22 and the second connection sheet 32 can be directly connected by welding procedure with capacitor body 50, facilitate Automation of Welding；Positive pole busbar 20, cathode bus bar 30 and insulating barrier 40 be stacked in capacitor body 50 top, with IGBT draw terminal distance shorter, inductance is less, positive pole busbar 20 and cathode bus bar 30 design simply, pressing can not be done by lamination place, does not result in both positive and negative polarity and connects, saves manufacturing cost。
According to one embodiment of present invention, positive pole busbar 20 is placed directly within the upper surface of capacitor body 50。It is to say, the lower surface of positive pole busbar 20 is directly only against on the upper surface of capacitor body 50。Thus, the capacitor body 50 of this structure can reduce and the distance of the IGBT terminal drawn further, reduces inductance further。
In certain specific embodiments of the invention, a connecting piece 22 and positive pole busbar 20 are integrally formed and by bending the first end face fitting to capacitor body 50。Further, second connects the second end face that sheet 32 is integrally formed with cathode bus bar 30 and is fitted to capacitor body 50 by bending。
As shown in Figure 1, a connecting piece 22 is formed as a part for positive pole busbar 20, this sections transverse downwardly extends and fits on the rear end face of capacitor body 50 in the back edge of positive pole busbar 20, second connects sheet 32 is formed as a part for cathode bus bar 30, and this sections transverse downwardly extends and fits in edge, the front of cathode bus bar 30 on the front end face of capacitor body 50。Thus, the structure of this thin film capacitor 100 is simplified further, and preparation, with easy to assembly, reduces preparation cost。
According to one embodiment of present invention, a connecting piece 22 is provided with and is connected terminal 221 for connected with capacitor body 50 first, and second connects sheet 32 is provided with the second connection terminal 321 being connected for capacitor body 50。Preferably, first to connect terminal 221 be multiple and periphery along a connecting piece 22 is along being spaced layout, and second to connect terminal 321 be that multiple and along the second connection sheet 32 edge, periphery is spaced layout。
Specifically, as it is shown in figure 1, in certain specific embodiments of the invention, the first connection terminal 221 and the second connection terminal 321 constitute multipair, and the first of each centering connects terminal 221 and the second connection terminal 321 is adjacent one another are。In other words, the periphery of a connecting piece 22 connects terminal 221 along being provided with multiple first, first connects terminal 221 is connected with the rear side of capacitor body 50, and second connects the periphery of sheet 32 connects terminal 321 along being provided with multiple second, and second connects terminal 321 is connected with the front side of capacitor body 50。
Multiple first connect terminals 221 the periphery of a connecting piece 22 along on be spaced from each other layout, multiple second connects terminal 321 connects, second, the layout that is spaced from each other on the edge, periphery of sheet 32, first connects terminal 221 can be corresponding with the number of capacitor body 50 with the second number connecting terminal 321, first connects terminal 221 can also be identical with the second arrangement position connected on sheet 32 at a connecting piece 22 with the second connection terminal 321, thereby may be ensured that the two ends of each capacitor body 50 all have corresponding first to connect terminal 221 and the second connection terminal 321 is coupled。
According to one embodiment of present invention, the first connection terminal 221 and a connecting piece 22 are integrally formed, and the second connection terminal 321 is connected sheet 32 with second and is integrally formed。Thus, this thin film capacitor 100 structure is simpler, and structural stability is higher, and convenient formation, and preparation cost is low。
Preferably, as shown in Figure 1, in certain specific embodiments of the invention, capacitor body 50 is multiple, multiple capacitor bodies 50 are arranged in multiple row and multilamellar, positive pole busbar 20 is placed on above the one layer capacitor fuse 50 of the top, and a connecting piece 22 is multiple and is spaced layout, and second connects sheet 32 is multiple and is spaced layout。Thus, the thin film capacitor 100 of this structure can assemble multiple capacitor body 50, and positive pole busbar 20 and cathode bus bar 30 stacking place process without doing pressing, have saved manufacturing cost。
Other compositions of thin film capacitor 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 (9)
1. a thin film capacitor, it is characterized in that, including: housing, capacitor body, positive pole busbar, cathode bus bar, a connecting piece being connected with described positive pole busbar, be connected with described cathode bus bar second be connected sheet, the first electrode terminal being connected with described positive pole busbar and the second electrode terminal being connected with described cathode bus bar
Described capacitor body, positive pole busbar, cathode bus bar, a connecting piece and second connect sheet and are located in described housing and by embedding insulator seal,
Described cathode bus bar is stacked on described positive pole busbar and is provided with insulating barrier between described positive pole busbar and described cathode bus bar, described positive pole busbar is located on the side of described capacitor body, described a connecting piece is connected with the positive pole of described capacitor body and is positioned at the first end face of described capacitor body, and described second connects second end face relative with described first end face that sheet is connected with the negative pole of described capacitor body and is positioned at described capacitor body。
2. thin film capacitor according to claim 1, it is characterised in that described positive pole busbar is sticked on the upper surface of described capacitor body。
3. thin film capacitor according to claim 1, it is characterised in that described a connecting piece and described positive pole busbar are integrally formed and by bending the first end face fitting to described capacitor body。
4. thin film capacitor according to claim 3, it is characterised in that described second connects sheet is integrally formed with described cathode bus bar and by bending the second end face fitting to described capacitor body。
5. thin film capacitor according to claim 1, it is characterised in that described a connecting piece is provided with and is connected terminal for connected with described capacitor body first, described second connects sheet is provided with the second connection terminal being connected for described capacitor body。
6. thin film capacitor according to claim 5, it is characterized in that, described first to connect terminal be multiple and periphery along described a connecting piece is along being spaced layout, and described second connects terminal is multiple and connects the periphery of sheet along being spaced layout along described second。
7. thin film capacitor according to claim 6, it is characterised in that described first connection terminal and described second connects terminal and constitutes multipair, the first of each centering connects terminal and the second connection terminal is adjacent one another are。
8. thin film capacitor according to claim 5, it is characterised in that described first connects terminal is integrally formed with described a connecting piece, described second connection terminal is connected sheet with described second and is integrally formed。
9. the thin film capacitor according to any one of claim 1-8, it is characterized in that, described capacitor body is multiple, the plurality of capacitor body is arranged in multiple row and multilamellar, described positive pole busbar is placed on above the one layer capacitor fuse of the top, described a connecting piece is multiple and is spaced layout, and described second connects sheet is multiple and is spaced layout。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709178.3A CN105702456A (en) | 2014-11-28 | 2014-11-28 | Film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709178.3A CN105702456A (en) | 2014-11-28 | 2014-11-28 | Film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105702456A true CN105702456A (en) | 2016-06-22 |
Family
ID=56230463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410709178.3A Pending CN105702456A (en) | 2014-11-28 | 2014-11-28 | Film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105702456A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252073A (en) * | 2016-10-26 | 2016-12-21 | 深圳市汇北川电子技术有限公司 | A kind of thin film capacitor for electric automobile Double Motor Control device |
| CN110125260A (en) * | 2019-05-29 | 2019-08-16 | 厦门鑫河精密科技股份有限公司 | New-energy automobile capacitor bus-bar and its production method |
| CN113782342A (en) * | 2021-09-14 | 2021-12-10 | 广东电网有限责任公司广州供电局 | Self-healing capacitor electrode structure based on flattening element |
| CN114758816A (en) * | 2022-04-30 | 2022-07-15 | 中国第一汽车股份有限公司 | Direct current bus capacitor and motor controller |
| US11832390B2 (en) | 2022-03-07 | 2023-11-28 | Rolls-Royce Corporation | Multilayer copper bus bars with soldered through hole components |
| US11876364B2 (en) | 2022-03-07 | 2024-01-16 | Rolls-Royce Corporation | Multilayer electronic components with soldered through holes |
Citations (5)
| 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 |
| 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 |
| CN103890882A (en) * | 2011-06-15 | 2014-06-25 | 弗拉克电容及工厂设施有限公司 | Contact for electrically connecting end-face contact layers on the end faces of a plastic foil capacitor coil of a single-phase or three-phase encapsulated capacitor, and single-phase and three-phase encapsulated capacitor having said contact |
| 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 |
-
2014
- 2014-11-28 CN CN201410709178.3A patent/CN105702456A/en active Pending
Patent Citations (5)
| 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 |
| CN102280247A (en) * | 2010-06-10 | 2011-12-14 | 现代自动车株式会社 | Capacitor for inverter of vehicle |
| CN103890882A (en) * | 2011-06-15 | 2014-06-25 | 弗拉克电容及工厂设施有限公司 | Contact for electrically connecting end-face contact layers on the end faces of a plastic foil capacitor coil of a single-phase or three-phase encapsulated capacitor, and single-phase and three-phase encapsulated capacitor having said contact |
| 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 (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252073A (en) * | 2016-10-26 | 2016-12-21 | 深圳市汇北川电子技术有限公司 | A kind of thin film capacitor for electric automobile Double Motor Control device |
| CN106252073B (en) * | 2016-10-26 | 2019-05-31 | 深圳市汇北川电子技术有限公司 | A kind of thin film capacitor for electric car Double Motor Control device |
| CN110125260A (en) * | 2019-05-29 | 2019-08-16 | 厦门鑫河精密科技股份有限公司 | New-energy automobile capacitor bus-bar and its production method |
| CN113782342A (en) * | 2021-09-14 | 2021-12-10 | 广东电网有限责任公司广州供电局 | Self-healing capacitor electrode structure based on flattening element |
| CN113782342B (en) * | 2021-09-14 | 2023-08-04 | 广东电网有限责任公司广州供电局 | Self-healing capacitor electrode structure based on flattening element |
| US11832390B2 (en) | 2022-03-07 | 2023-11-28 | Rolls-Royce Corporation | Multilayer copper bus bars with soldered through hole components |
| US11876364B2 (en) | 2022-03-07 | 2024-01-16 | Rolls-Royce Corporation | Multilayer electronic components with soldered through holes |
| CN114758816A (en) * | 2022-04-30 | 2022-07-15 | 中国第一汽车股份有限公司 | Direct current bus capacitor and motor controller |
| CN114758816B (en) * | 2022-04-30 | 2023-10-27 | 中国第一汽车股份有限公司 | DC bus capacitor and motor controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105702456A (en) | Film capacitor | |
| CN105529188A (en) | Thin-film capacitor | |
| CN204332695U (en) | For the film capacitor of electric automobile | |
| CN102822933B (en) | Fuse unit | |
| US10109426B2 (en) | Film capacitor | |
| CN105702458A (en) | Three-level thin film capacitor | |
| US11677114B2 (en) | Busbar and battery laminate | |
| US20160260947A1 (en) | Battery pack | |
| CN209281905U (en) | Soft connecting mechanism | |
| CN106207276A (en) | Lithium cell core | |
| CN105702460A (en) | Three-level thin film capacitor | |
| CN204332694U (en) | Film capacitor | |
| CN105702459A (en) | Three-level thin film capacitor | |
| CN106887560A (en) | Integrated guide electric connecting sheet and its forming method | |
| CN204886491U (en) | Motor power consumption source terminal subassembly and motor that has it | |
| CN205160327U (en) | Each other of brushless motor stator is buckled formula blade of silicon steel and is stowed and put | |
| CN201156473Y (en) | Capacitance element and coupling capacitor | |
| CN105529189B (en) | Three level thin film capacitors | |
| CN110718389A (en) | Busbar structure of capacitor and automobile capacitor | |
| CN110098543B (en) | Laminated busbar, power module and vehicle | |
| CN105099037A (en) | Power source lead-out wire assembly for motor and motor with power source lead-out wire assembly | |
| CN203895219U (en) | Three-phase five-pillar dry type amorphous alloy transformer angle ring and installation assembly thereof | |
| CN104969382A (en) | Rechargeable battery cell and rechargeable battery module | |
| CN203617881U (en) | Safe connection structure for connecting IGBT with direct-current bus electrical appliance | |
| CN103956262A (en) | Graduated dry type inversion capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160622 |