WO2013029341A1 - Capacitor unit composite structure for inverter of electric scooter - Google Patents

Capacitor unit composite structure for inverter of electric scooter Download PDF

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Publication number
WO2013029341A1
WO2013029341A1 PCT/CN2012/001231 CN2012001231W WO2013029341A1 WO 2013029341 A1 WO2013029341 A1 WO 2013029341A1 CN 2012001231 W CN2012001231 W CN 2012001231W WO 2013029341 A1 WO2013029341 A1 WO 2013029341A1
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WO
WIPO (PCT)
Prior art keywords
switch module
capacitor
phase switch
bus bar
aluminum electrolytic
Prior art date
Application number
PCT/CN2012/001231
Other languages
French (fr)
Chinese (zh)
Inventor
周旺龙
Original Assignee
Zhou Wanglong
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Publication of WO2013029341A1 publication Critical patent/WO2013029341A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G15/00—Structural combinations of capacitors or other devices covered by at least two different main groups of this subclass with each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/02—Mountings
    • H01G2/04—Mountings specially adapted for mounting on a chassis
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/26—Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices with each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/28—Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices with other electric components not covered by this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the invention relates to an electric vehicle HEV/EV drive controller, which has the advantages of improving internal space utilization, saving installation space, reducing volume and facilitating integrated installation, and absorbing (Snubber) capacitors, large-capacity aluminum electrolytic capacitors for bus voltage smoothing and connecting bus bars. Row, compact layout mounting structure. Background technique:
  • the electric vehicle HEV/EV drive control inverter will output the DC power from the battery through the three-phase switch module to output the three-phase AC drive motor.
  • the distributed inductor of the switch module and the motor generates high-frequency and low-frequency voltage ripple on the busbar, which needs to be absorbed. (Snubber) capacitors and high-capacity aluminum electrolytic capacitors are smoothed.
  • the switching elements of the three-phase switching module are provided with a stable and stable voltage source.
  • HEV/EV drive control inverters For electric vehicle HEV/EV drive control inverters, it is necessary to miniaturize the component volume and reduce the number of components.
  • the components are arranged according to the specified circuit requirements to improve the integrated installation efficiency and power density.
  • the HEV/EV drive control inverter is one of the core components, and its weight reduction and volume reduction are important tasks for development engineers.
  • the inverter needs to use three Snubber capacitors and two or more aluminum electrolytic capacitors. Since the cylindrical aluminum electrolytic capacitors and the square-shaped absorbing (Snubber) capacitors are difficult to assemble and the number of components is large, assembly work is complicated. The problem of increased working hours.
  • the current electric vehicle HEV/EV drive control inverter tends to adopt a HEV/EV with an integrated housing package by connecting a square-shaped absorption (Snubber) capacitor and a DC-LINK film capacitor with a bus bar. 'Special' film capacitors.
  • the capacity density of DC-LINK film capacitors is much lower than that of aluminum electrolytic capacitors, which may lead to some large-scale power drive control inverters with large size structure. Summary of the invention:
  • a plurality of aluminum electrolytic capacitors of appropriate diameter are used in a side view of a substantially "L" type laminated bus bar.
  • the combined width is equivalent to the length of the three-phase switch module circuit terminal side and the length (and) of a snubber film capacitor or three Snubber film capacitors; placing the absorbing (Snubber) film capacitor At the position of the "L" type laminated busbar at the corner of the three-phase switch module, the positive and negative terminals of the Snubber film capacitor and the positive and negative terminals of the "L" type laminated busbar switch module side are also three.
  • the phase switch module input circuit positive and negative terminal block bolt holes are coincidently locked and installed.
  • the HEV/EV inverter space is roughly square, and the relative component quantity is reduced. It is applied in a large power drive control inverter, has high space utilization and capacity density, and has a compact layout and convenient HEV. / EV inverter integrated installation of a capacitor unit combination structure.
  • the "L” type bus bar and the aluminum electrolytic capacitor and the absorbing (Smibber) film capacitor which are connected in parallel at both ends are called capacitor units.
  • the present invention provides a capacitor unit for use in an electric vehicle HEV/EV drive inverter, which can be used in an electric vehicle drive controller to effectively reduce the volume of the inverter, and can reduce the three-phase switch module circuit The impedance between the capacitor and the capacitor.
  • the bus capacitor unit according to the present invention is mounted by two or more horizontal (horizontal) aluminum electrolytic capacitors; one or three Snubber film capacitors and one side view substantially "L" type bend
  • the tiered busbars of the corners are composed.
  • the input side of the laminated busbar of the L"-shaped angle connects the aluminum electrolytic capacitors into groups, and the load side of the laminated busbar is connected to the circuit terminals of the three-phase switch module; the Snubber capacitor is placed in the three-phase switch module and the aluminum electrolytic capacitor The position of the intermediate laminated bus bar "L" type corner is arranged.
  • the aluminum electrolytic capacitor, the absorbing (Smibber) capacitor and the three-phase switching module are arranged in two dimensions in parallel.
  • the three-phase switch module input circuit terminal; the laminated bus bar load side terminal; the absorption (Snubber) capacitor lead terminal, the three positive and negative terminals correspond, the mounting hole coincides with the bolt to lock.
  • the input circuit terminal of the three-phase switch module can be first absorbed (Smibber) capacitor lead terminal contact or the bus bar load side terminal contact can be laminated first. So it can be either a Snubber capacitor on the top of the stacked busbars, or a stacked busbar on the Snubber capacitor.
  • Figure la Figure lb is a perspective view of a stacked busbar row with a side view of substantially "L" shaped corners in accordance with an embodiment of the present invention.
  • FIGS. 2a and 2b are perspective views showing the assembly of aluminum electrolytic capacitors in a group connection at the input end of the laminated bus bar according to the present invention.
  • 3a and 3b are schematic perspective views showing a complete three-phase switch module, a snubber capacitor, an L"-type laminated bus bar, and an aluminum electrolytic capacitor mounting structure according to the present invention.
  • FIGS. 4a to 4b are side views of a three-phase switch module, a snubber capacitor, an L" type laminated bus bar, and an aluminum electrolytic capacitor mounting structure in accordance with an embodiment of the present invention.
  • the laminated bus bar is used to connect the bolt mounting holes of the three-phase switch module circuit terminals; 29: There are three pairs of positive and negative terminal terminals (Snubber) capacitors;
  • Figure la Figure lb is a laminated busbar with a side view of approximately "L" type.
  • the aluminum busbar can be connected to both ends of the busbar row while ensuring sufficient current carrying capacity and physical structural strength of the busbar row.
  • the intermediate position outside the position of the capacitor and the three-phase switch module is reduced in width; the width and height information of the Snubber capacitor can be used to optimize the angular position of the "L" type laminated bus bar; combined with the diameter information of the aluminum electrolytic capacitor "L” type laminated busbar discharge capacitor
  • the size of the connecting side is optimized.
  • the terminal block that needs to be laminated with the bus bar row is adjusted by the angle of the bus bar row angle to correspond to the height of the three-phase switch module terminal.
  • 20 and 21 input positive and negative busbar terminals can adjust their position, direction and angle according to the actual vehicle integrated installation requirements.
  • the busbar row is the core structural component of the present invention, and the laminated busbars which can be formed by a hot press structure can also be formed by injection molding.
  • Figure 2a Figure 2b shows three horizontal (horizontal) placed aluminum electrolytic capacitors 11, 12, 13 mounted side by side on an "L" type laminated busbar.
  • the type of laminated bus bar needs to be used in the reverse direction, that is, the inverted "L" type.
  • FIG 3a and Figure 3b show the aluminum electrolytic capacitors mounted on the input side of the "L" type laminated busbars.
  • the aluminum electrolytic capacitors are assembled into a group, and overlap with the Smibber capacitors and the three-phase switch module input circuit terminals with only three pairs of positive and negative terminals. installation. 23 ⁇ 28
  • Each bolt mounting point is the input circuit terminal of the lower three-phase switch module, the middle is the laminated busbar connection terminal, the upper layer is the absorption (Snubber) capacitor lead terminal; or the lower three-phase switch module input circuit terminal, the middle is the absorption (Snubber)
  • the capacitor leads the terminal, and the upper layer is the laminated busbar connection terminal.
  • the three-phase switch module, the Snubber capacitor, and the aluminum electrolytic capacitor occupy approximately one square.
  • Figure 4a Figure 4b shows the three-phase switch module, the snubber capacitor and the aluminum electrolytic capacitor and the "L" type laminated busbar. After installation, the three-phase switch module, the snubber capacitor and the aluminum electrolytic capacitor are seen from the side view. In the arrangement of the parallel array, it can be seen that the aluminum electrolytic capacitor can easily change its voltage and capacity specifications by increasing or decreasing the length, and the Snubber capacitor can change the voltage and capacity specifications by increasing or decreasing the height, so that the capacitor unit combination of the present invention is universal. Good sex.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inverter Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A capacitor unit composite structure for an inverter of an electric scooter comprises a laminated busbar (22) roughly L-shaped from a side view; two or more aluminum electrolytic capacitors (11, 12, 13), having a width equivalent to the length of a three-phase switch module (30) after being horizontally mounted in parallel; a snubber capacitor (29) with three pairs of anode and cathode leading-out terminals, having the length equivalent to the length of the three-phase switch module (30) and the width of the aluminum electrolytic capacitors (11, 12, 13) mounted in parallel, and located at a corner of the L-shaped laminated busbar (22) and close to the three-phase switch module (30). When the leading-out terminal of the snubber capacitor (29), a wiring terminal of the laminated busbar (22), and an input terminal of the three-phase switch module (30) coincide with each other, a capacitor unit with compact spatial layout formed after bolts are mounted can form a roughly cuboid space with the three-phase switch module (30) and an electronic control unit (ECU), thereby facilitating the integrated installation of the electric scooter.

Description

一种电动车辆逆变器用电容器单元组合结构 技术领域：  Capacitor unit combined structure for electric vehicle inverter
本发明涉及电动车辆 HEV/EV驱动控制器， 为提高内部空间利用率， 节省安装空间， 减小 体积便于集成化安装， 其吸收（Snubber) 电容器、 母线电压平滑用大容量铝电解电容器及连 接母线排， 紧凑的布局安装结构。 背景技术：  The invention relates to an electric vehicle HEV/EV drive controller, which has the advantages of improving internal space utilization, saving installation space, reducing volume and facilitating integrated installation, and absorbing (Snubber) capacitors, large-capacity aluminum electrolytic capacitors for bus voltage smoothing and connecting bus bars. Row, compact layout mounting structure. Background technique:
电动车辆 HEV/EV驱动控制逆变器将来自蓄电池的直流电，通过三相开关模块输出三相交 流电驱动电机， 开关模块和电机的分布电感在母线上产生的高频和低频电压纹波， 需要吸收 (Snubber)电容器和大容量铝电解电容器进行平滑滤波。使三相开关模块的开关元件得到平 稳安定的电压源。  The electric vehicle HEV/EV drive control inverter will output the DC power from the battery through the three-phase switch module to output the three-phase AC drive motor. The distributed inductor of the switch module and the motor generates high-frequency and low-frequency voltage ripple on the busbar, which needs to be absorbed. (Snubber) capacitors and high-capacity aluminum electrolytic capacitors are smoothed. The switching elements of the three-phase switching module are provided with a stable and stable voltage source.
为降低三相开关模块进行开关操作时产生的冲击电压峰值， 需要将吸收（Snubber)电容 器尽量靠近三项开关模块安装， 而且大容量滤波铝电解电容器和开关模块电路连接的母线尽 量缩短， 以降低电感和阻抗值。  In order to reduce the peak value of the surge voltage generated when the three-phase switch module is switched, it is necessary to install the Snubber capacitor as close as possible to the three switch modules, and the busbar connecting the large-capacity filter aluminum electrolytic capacitor and the switch module circuit is shortened as much as possible to reduce Inductance and impedance values.
对于电动车辆 HEV/EV驱动控制逆变器来说， 需要部件体积尽量小型化和减少元器件数 量， 各组成部分按规定的电路要求合理布局， 提高集成安装效率和功率密度。 HEV/EV驱动控 制逆变器作为核心部件之一， 对其降低重量和减小体积是开发工程师的重要工作内容。  For electric vehicle HEV/EV drive control inverters, it is necessary to miniaturize the component volume and reduce the number of components. The components are arranged according to the specified circuit requirements to improve the integrated installation efficiency and power density. The HEV/EV drive control inverter is one of the core components, and its weight reduction and volume reduction are important tasks for development engineers.
通常逆变器需要使用 3只吸收（Snubber) 电容器和 2只以上的铝电解电容器， 由于圆柱 型的铝电解电容器与方块形的吸收（Snubber) 电容器组装困难且部件数目众多， 存在组装作 业复杂， 工时增大的不良情况。  Usually, the inverter needs to use three Snubber capacitors and two or more aluminum electrolytic capacitors. Since the cylindrical aluminum electrolytic capacitors and the square-shaped absorbing (Snubber) capacitors are difficult to assemble and the number of components is large, assembly work is complicated. The problem of increased working hours.
由于以上情况， 目前电动车辆 HEV/EV驱动控制逆变器倾向于采用将方块外形的吸收 (Snubber)电容器和 DC- LINK薄膜电容器用汇流条连接成模组后，一体化外壳封装的 HEV/EV '专用'薄膜电容器。但是 DC- LINK薄膜电容器容量密度相比铝电解电容器容量密度低很多， 会导致一些较大功率驱动控制逆变器体积结构大型化的不良情况。 发明内容： Due to the above situation, the current electric vehicle HEV/EV drive control inverter tends to adopt a HEV/EV with an integrated housing package by connecting a square-shaped absorption (Snubber) capacitor and a DC-LINK film capacitor with a bus bar. 'Special' film capacitors. However, the capacity density of DC-LINK film capacitors is much lower than that of aluminum electrolytic capacitors, which may lead to some large-scale power drive control inverters with large size structure. Summary of the invention:
考虑到以上情况， 在综合铝电解电容器直径、 吸收（Snubber) 电容器和三相开关模块长 度的特点后， 采用一只侧视大致为 "L"型层叠母线排将多只适当直径的铝电解电容器并列安 装， 其组合宽度与三相开关模块电路接线端子侧的长度及一只吸收（Snubber)薄膜电容器或 三只吸收 （Snubber) 薄膜电容器的长度 （和） 相当； 将吸收 （Snubber) 薄膜电容器放置于 "L"型层叠母线排弯角处靠近三相开关模块的位置， 吸收 （Snubber) 薄膜电容器的正负极 接线端子与 "L"型层叠母线排开关模块侧的正负极引出端子还有三相开关模块输入电路正负 极接线端子螺栓孔重合锁定安装。  Taking into account the above situation, after combining the characteristics of the diameter of the aluminum electrolytic capacitor, the size of the absorbing (Snubber) capacitor and the length of the three-phase switch module, a plurality of aluminum electrolytic capacitors of appropriate diameter are used in a side view of a substantially "L" type laminated bus bar. Parallel installation, the combined width is equivalent to the length of the three-phase switch module circuit terminal side and the length (and) of a snubber film capacitor or three Snubber film capacitors; placing the absorbing (Snubber) film capacitor At the position of the "L" type laminated busbar at the corner of the three-phase switch module, the positive and negative terminals of the Snubber film capacitor and the positive and negative terminals of the "L" type laminated busbar switch module side are also three. The phase switch module input circuit positive and negative terminal block bolt holes are coincidently locked and installed.
由此获得 HEV/EV逆变器空间大致为方形体， 且相对元器件数量减少， 在较大功率驱动控 制逆变器中应用， 拥有较高空间利用率和容量密度， 布局结构紧凑， 方便 HEV/EV逆变器集成 安装的一种电容器单元组合结构。  Therefore, the HEV/EV inverter space is roughly square, and the relative component quantity is reduced. It is applied in a large power drive control inverter, has high space utilization and capacity density, and has a compact layout and convenient HEV. / EV inverter integrated installation of a capacitor unit combination structure.
此处大致为 "L"型的母线排及其两端并联安装的铝电解电容器和吸收 （Smibber) 薄膜 电容器称为电容器单元。  Here, the "L" type bus bar and the aluminum electrolytic capacitor and the absorbing (Smibber) film capacitor which are connected in parallel at both ends are called capacitor units.
本发明提供了一种用于电动车辆 HEV/EV驱动逆变器中的电容器单元，其在电动车辆驱动 控制器中使用可以有效的减小逆变器的体积， 而且可以降低三相开关模块电路与电容器之间 的阻抗。  The present invention provides a capacitor unit for use in an electric vehicle HEV/EV drive inverter, which can be used in an electric vehicle drive controller to effectively reduce the volume of the inverter, and can reduce the three-phase switch module circuit The impedance between the capacitor and the capacitor.
根据本发明的母线电容器单元由两只或两只以上数量横向 （卧式） 放置安装的铝电解电 容器； 一只或者三只吸收 （Snubber) 薄膜电容器和一只侧视大致为 "L"型弯角的层叠母线 排组成。  The bus capacitor unit according to the present invention is mounted by two or more horizontal (horizontal) aluminum electrolytic capacitors; one or three Snubber film capacitors and one side view substantially "L" type bend The tiered busbars of the corners are composed.
L"型弯角的层叠母线排的输入侧将铝电解电容器安装连接成组， 层叠母线排负载侧与三 相开关模块电路端子连接； 吸收（Snubber)电容器放置在三相开关模块与铝电解电容器中间 层叠母线排 "L"型弯角处位置。 使铝电解电容器、 吸收 （Smibber) 电容器和三相开关模块 二维的并列布置。  The input side of the laminated busbar of the L"-shaped angle connects the aluminum electrolytic capacitors into groups, and the load side of the laminated busbar is connected to the circuit terminals of the three-phase switch module; the Snubber capacitor is placed in the three-phase switch module and the aluminum electrolytic capacitor The position of the intermediate laminated bus bar "L" type corner is arranged. The aluminum electrolytic capacitor, the absorbing (Smibber) capacitor and the three-phase switching module are arranged in two dimensions in parallel.
此处三相开关模块输入电路端子； 层叠母线排负载侧接线端子； 吸收（Snubber)电容器 的引出接线端子， 三者正负极端子对应， 安装孔重合用螺栓锁定。 三相开关模块输入电路端 子可以先吸收 (Smibber)电容器引出接线端子接触也可以先层叠母线排负载侧接线端子接触， 所以可以是吸收 （Snubber ) 电容器在上层叠母线排在下，也可以是层叠母线排在上吸收 (Snubber) 电容器在下。 Here, the three-phase switch module input circuit terminal; the laminated bus bar load side terminal; the absorption (Snubber) capacitor lead terminal, the three positive and negative terminals correspond, the mounting hole coincides with the bolt to lock. The input circuit terminal of the three-phase switch module can be first absorbed (Smibber) capacitor lead terminal contact or the bus bar load side terminal contact can be laminated first. So it can be either a Snubber capacitor on the top of the stacked busbars, or a stacked busbar on the Snubber capacitor.
具体见实施例。 附图说明：  See the embodiment for details. BRIEF DESCRIPTION OF THE DRAWINGS:
图 la图 lb是根据本发明实施的侧视大致为 "L"型弯角的层叠母线排立体图。  Figure la Figure lb is a perspective view of a stacked busbar row with a side view of substantially "L" shaped corners in accordance with an embodiment of the present invention.
图 2a图 2b是根据本发明实施的层叠母线排的输入端将铝电解电容器成组连接安装立体 图。  2a and 2b are perspective views showing the assembly of aluminum electrolytic capacitors in a group connection at the input end of the laminated bus bar according to the present invention.
图 3a图 3b是根据本发明实施完整的三相开关模块、 吸收 （Snubber) 电容器、 L"型层 叠母线排、 铝电解电容器安装结构， 布局示意立体图。  3a and 3b are schematic perspective views showing a complete three-phase switch module, a snubber capacitor, an L"-type laminated bus bar, and an aluminum electrolytic capacitor mounting structure according to the present invention.
图 4a图 4b是根据本发明实施的三相开关模块、 吸收 （Snubber) 电容器、 L"型层叠母 线排、 铝电解电容器安装结构的侧视图。  4a to 4b are side views of a three-phase switch module, a snubber capacitor, an L" type laminated bus bar, and an aluminum electrolytic capacitor mounting structure in accordance with an embodiment of the present invention.
图中数字标注说明- 11、 12、 13： 铝电解电容器； Digital labeling instructions in the figure - 11, 12, 13: Aluminum electrolytic capacitors;
14、 15、 16、 17、 18、 19： 层叠母线排用于铝电解电容器的螺栓安装孔；  14, 15, 16, 17, 18, 19: laminated busbars for bolt mounting holes in aluminum electrolytic capacitors;
20、 21： 输入侧层叠母线排正负极母线接线端子； 20, 21: Input side laminated busbar positive and negative busbar terminal;
22： 大致为 "L"型弯角的层叠母线排； 22: a laminated busbar of approximately "L"-shaped corners;
23、 24、 25、 26、 27、 28： 层叠母线排用于连接三相开关模块电路端子的螺栓安装孔； 29： 有三对正负极接线端子的吸收 （Snubber) 电容器；  23, 24, 25, 26, 27, 28: The laminated bus bar is used to connect the bolt mounting holes of the three-phase switch module circuit terminals; 29: There are three pairs of positive and negative terminal terminals (Snubber) capacitors;
30： 三相开关模块。 30: Three-phase switch module.
具体实施方式： detailed description:
以下将参考附图描述本发明的优选实施例。  Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
图 la图 lb是侧视大致为 "L"型的层叠母线排， 为了部件的轻量化考虑， 在保证母线 排载流能力和物理结构强度足够的情况下， 可以将母线排两端连接铝电解电容和三相开关模 块位置以外的中间位置减小宽度； 结合吸收（Snubber) 电容器的宽度、 高度信息可以对 " L" 型层叠母线排的弯角位置作优化； 结合铝电解电容器的直径信息对 "L"型层叠母线排电容器 连接侧的尺寸作优化。 另外需要层叠母线排的接线端子通过母线排弯角角度调整其高度与三 相开关模块接线端子高度对应。 Figure la Figure lb is a laminated busbar with a side view of approximately "L" type. For the sake of lightweighting of the components, the aluminum busbar can be connected to both ends of the busbar row while ensuring sufficient current carrying capacity and physical structural strength of the busbar row. The intermediate position outside the position of the capacitor and the three-phase switch module is reduced in width; the width and height information of the Snubber capacitor can be used to optimize the angular position of the "L" type laminated bus bar; combined with the diameter information of the aluminum electrolytic capacitor "L" type laminated busbar discharge capacitor The size of the connecting side is optimized. In addition, the terminal block that needs to be laminated with the bus bar row is adjusted by the angle of the bus bar row angle to correspond to the height of the three-phase switch module terminal.
其中 20、 21输入正负极母线接线端子可以根据实际车辆集成化安装要求， 调整其所处位 置、 方向、 角度。  Among them, 20 and 21 input positive and negative busbar terminals can adjust their position, direction and angle according to the actual vehicle integrated installation requirements.
此母线排是本发明的核心结构部件， 可以采用热压方式结构成型的层叠母线排也可以采 用注塑方式结构成型的母线排。  The busbar row is the core structural component of the present invention, and the laminated busbars which can be formed by a hot press structure can also be formed by injection molding.
图 2a图 2b是三只横向 （卧式） 放置的铝电解电容器 11、 12、 13、 并列安装在 "L"型 层叠母线排上。 此处如果三相开关模块采用水冷却系统导致高度超过铝电解电容器直径的一 半， 则 型层叠母线排需要反转方向使用， 即倒 "L"型使用。  Figure 2a Figure 2b shows three horizontal (horizontal) placed aluminum electrolytic capacitors 11, 12, 13 mounted side by side on an "L" type laminated busbar. Here, if the three-phase switch module uses a water-cooling system and the height exceeds half of the diameter of the aluminum electrolytic capacitor, the type of laminated bus bar needs to be used in the reverse direction, that is, the inverted "L" type.
图 3a图 3b是在 " L"型层叠母线排输入侧将铝电解电容器安装连接成组后， 与一只有 三对正负极接线端子的吸收（Smibber)电容器和三相开关模块输入电路端子重合安装。 23〜 28每个螺栓安装点都是下层三相开关模块输入电路端子， 中间是层叠母线排连接端子， 上层 是吸收 （Snubber ) 电容器引出端子； 或者下层三相开关模块输入电路端子， 中间是吸收 (Snubber) 电容器引出端子， 上层是层叠母线排连接端子。  Figure 3a and Figure 3b show the aluminum electrolytic capacitors mounted on the input side of the "L" type laminated busbars. The aluminum electrolytic capacitors are assembled into a group, and overlap with the Smibber capacitors and the three-phase switch module input circuit terminals with only three pairs of positive and negative terminals. installation. 23~ 28 Each bolt mounting point is the input circuit terminal of the lower three-phase switch module, the middle is the laminated busbar connection terminal, the upper layer is the absorption (Snubber) capacitor lead terminal; or the lower three-phase switch module input circuit terminal, the middle is the absorption (Snubber) The capacitor leads the terminal, and the upper layer is the laminated busbar connection terminal.
安装完整后， 三相开关模块、 吸收（Snubber) 电容器和铝电解电容器占用面积大致为一 个方形。  After installation, the three-phase switch module, the Snubber capacitor, and the aluminum electrolytic capacitor occupy approximately one square.
图 4a图 4b是三相开关模块、 吸收 （Snubber) 电容器和铝电解电容器和 "L"型层叠母 线排完整安装后， 从侧视图看三相开关模块、 吸收（Snubber) 电容器和铝电解电容器二维并 列的布置， 可以看到铝电解电容器能方便地通过增减长度改变其电压、 容量规格， 吸收 (Snubber)电容器能通过增减高度改变电压、容量规格， 因而本发明的电容器单元组合方式 通用性较好。  Figure 4a Figure 4b shows the three-phase switch module, the snubber capacitor and the aluminum electrolytic capacitor and the "L" type laminated busbar. After installation, the three-phase switch module, the snubber capacitor and the aluminum electrolytic capacitor are seen from the side view. In the arrangement of the parallel array, it can be seen that the aluminum electrolytic capacitor can easily change its voltage and capacity specifications by increasing or decreasing the length, and the Snubber capacitor can change the voltage and capacity specifications by increasing or decreasing the height, so that the capacitor unit combination of the present invention is universal. Good sex.

Claims

1、 一种电动车辆逆变器用电容器单元组合结构， 包括： 一只侧视大致为 "L"型弯角的母线 排； 两只或两只以上数量的铝电解电容器， 横向 （卧式） 并列安装在母线排输入端： 一只或 者三只吸收（Snubber)电容器， 其长度或长度和与三相开关模块输入端子侧的长度和铝电解 电容器横向 （卧式）并列安装后宽度相当， 放置于 "L"型母线排弯角处靠近三相开关模块的 位置， 当吸收（Snubber)电容器的引出端子、母线排接线端子和三相开关模块输入端子重合， 螺栓安装后形成空间布局紧凑的电容器单元， 可以与三相开关模块及电子控制单元 （ECU)组 成大致方形体的逆变器， 便于电动车辆集成化安装。  1. A capacitor unit combination structure for an electric vehicle inverter, comprising: a busbar row having a side view substantially "L"-shaped angle; two or more aluminum electrolytic capacitors, horizontal (horizontal) juxtaposition Installed on the input of the busbar: One or three Snubber capacitors, the length or length of which is equivalent to the length of the input terminal side of the three-phase switch module and the horizontal (horizontal) side-by-side installation width of the aluminum electrolytic capacitor. The position of the "L" busbar is close to the position of the three-phase switch module. When the lead terminal of the snubber capacitor, the busbar terminal and the input terminal of the three-phase switch module coincide, the capacitor unit with a compact space is formed after the bolt is installed. It can form a square-shaped inverter with a three-phase switch module and an electronic control unit (ECU), which is convenient for integrated installation of electric vehicles.
2、 根据权利要求 1所述用于电动车辆逆变器的电容器单元组合结构， 其中所述的 "L"型弯 角的母线排的特征是： 在保证母线排载流能力和物理结构强度足够的情况下， 可以将母线排 两端连接铝电解电容和三相开关模块的位置除外其它中间位置减小宽度。  2. The capacitor unit assembly structure for an electric vehicle inverter according to claim 1, wherein said "L" type bent angle bus bar is characterized by: ensuring that the bus bar current carrying capacity and physical structure strength are sufficient In the case, the position of the aluminum electrolytic capacitor and the three-phase switch module connected to both ends of the bus bar can be reduced by other intermediate positions.
3、 根据权利要求 1所述用于电动车辆逆变器的电容器单元组合结构， 其中所述的 "L"型弯 角的母线排的特征是： 可以采用热压方式结构成型的层叠母线排， 也可以采用注塑方式结构 成型的母线排。  3. The capacitor unit assembly structure for an electric vehicle inverter according to claim 1, wherein said "L" type bent angle bus bar is characterized by: a laminated bus bar that can be formed by a hot pressing structure, Busbars that are formed by injection molding can also be used.
4、 根据权利要求 1所述用于电动车辆逆变器的电容器单元组合结构， 其中所述的 "L"型弯 角的母线排的特征是： 母线排的附件可以使母线排整体成其他不规则外形， 侧视构成大致为 4. The capacitor unit assembly structure for an electric vehicle inverter according to claim 1, wherein said "L" type angled bus bar is characterized by: the bus bar attachment can make the bus bar integral into other Regular shape, side view is roughly
"L"型弯角以母线排内的连接导体弯角为准。 The "L" angle is based on the angle of the connecting conductor in the busbar row.
5、 根据权利要求 1所述用于电动车辆逆变器的电容器单元组合结构， 其中所述的 "L"型弯 角的母线排的特征是： 连接铝电解电容器端的母线排可以是串联连接结构即由三层 （条） 连 接导体构成。  5. The capacitor unit assembly structure for an electric vehicle inverter according to claim 1, wherein said "L" type bent angle bus bar is characterized in that: the bus bar connecting the ends of the aluminum electrolytic capacitors may be a series connection structure. That is, it consists of three layers (strips) of connecting conductors.
6、 根据权利要求 1所述用于电动车辆逆变器的电容器单元组合结构，其特征是： 铝电解电容 器、 吸收 （Snubber) 电容器与三相开关模块二维的并列布置。  6. The capacitor unit assembly structure for an electric vehicle inverter according to claim 1, wherein: the aluminum electrolytic capacitor, the snubber capacitor, and the three-phase switch module are arranged in two dimensions in parallel.
7、 根据权利要求 1所述用于电动车辆逆变器的电容器单元组合结构， 其特征是： 吸收 (Snubber) 电容器的长度（和）可以与铝电解电容器横向 （卧式）并列安装后宽度和三相开 关模块输入端子侧的长度有较大差距， 不影响组成大致方形体逆变器。  7. The capacitor unit assembly structure for an electric vehicle inverter according to claim 1, wherein: the length (and) of the Snubber capacitor can be laterally (horizontal) in parallel with the aluminum electrolytic capacitor, and the width and The length of the input terminal side of the three-phase switch module has a large gap, and does not affect the composition of the substantially square body inverter.
8、 根据权利要求 1所述用于电动车辆逆变器的电容器单元组合结构，所述的电容器单元可以 与三相开关模块及电子控制单元（ECU)组成大致方形体的逆变器， 其中的三相开关模块可以 包括附属的散热器， 即三相开关模块输入端子侧的长度可以包括散热器的长度。  8. The capacitor unit assembly structure for an electric vehicle inverter according to claim 1, wherein said capacitor unit can be combined with a three-phase switch module and an electronic control unit (ECU) to form a substantially square-shaped inverter, wherein The three-phase switch module may include an attached heat sink, that is, the length of the input terminal side of the three-phase switch module may include the length of the heat sink.
PCT/CN2012/001231 2011-09-01 2012-09-03 Capacitor unit composite structure for inverter of electric scooter WO2013029341A1 (en)

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