WO2012113264A1 - Heat dissipating structure for capacitors of electric vehicle inverters - Google Patents

Heat dissipating structure for capacitors of electric vehicle inverters Download PDF

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Publication number
WO2012113264A1
WO2012113264A1 PCT/CN2012/000136 CN2012000136W WO2012113264A1 WO 2012113264 A1 WO2012113264 A1 WO 2012113264A1 CN 2012000136 W CN2012000136 W CN 2012000136W WO 2012113264 A1 WO2012113264 A1 WO 2012113264A1
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WIPO (PCT)
Prior art keywords
capacitor
heat
inverter
heat sink
insulating
Prior art date
Application number
PCT/CN2012/000136
Other languages
French (fr)
Chinese (zh)
Inventor
周旺龙
Original Assignee
Zhou Wanglong
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Publication date
Application filed by Zhou Wanglong filed Critical Zhou Wanglong
Publication of WO2012113264A1 publication Critical patent/WO2012113264A1/en

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Classifications

    • 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
    • H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
    • 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
    • H01G9/0003—Protection against electric or thermal overload; cooling arrangements; means for avoiding the formation of cathode films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/525—Temperature of converter or components thereof
    • 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 a heat dissipation installation method of a ⁇ : type aluminum electrolytic capacitor used in an electric vehicle inverter controller
  • Fig. 1 is a schematic diagram of a heat-dissipating installation manner of natural or forced air cooling.
  • the capacitor 5 is insulated from the outside by the insulating sleeve 6 and the bottom insulating spacer 10, and the capacitor is fixed by the clamp 4 and mounted on the fixed mounting board 1.
  • the heat generated by the operation of the capacitor is exchanged with the surrounding air through the insulating sleeve 6 and the gasket 10 around the aluminum casing 5, and the heat of the capacitor is conducted to reduce the temperature of the capacitor and improve the reliability.
  • FIG 2 is a schematic diagram of the liquid cooling and heat-dissipating installation.
  • the bottom of the capacitor 5 is in close contact with the liquid-cooled heat sink 7, and is fastened by bolts 8.
  • the bottom and bottom bolts 8 are provided with an insulating and heat-conductive film 9 on the contact surface of the liquid-cooled heat sink 7, ensuring that the capacitor is insulated from the heat sink 7.
  • the heat of the capacitor is conducted to the liquid-cooled heat sink 7 via the insulating and thermally conductive film 9, and the liquid inside the heat sink is quickly flowed to carry heat away from the heat sink.
  • the insulation and fixing of the other parts of the capacitor are the same as those of the conventional air-cooled heat dissipation shown in Figure 1.
  • the electric vehicle inverter works and the environment is harsh, and it needs to have dust, salt spray, shock resistance, vibration and other application requirements, it is in a tightly sealed housing, and the air flow space is limited, and air-cooled heat dissipation cannot be adopted.
  • the liquid cooling system usually has a complicated installation process and high cost, and it is difficult to ensure reliability in a vibration environment. Therefore, the above two commonly used capacitor cooling installation methods are not suitable for implementation in the electric vehicle inverter controller, and the invention content:
  • the technical problem to be solved by the present invention is to provide a heat-dissipating installation method with simple installation and good heat dissipation effect for the strict use and installation conditions of the electric vehicle inverter controller.
  • the technical solution of the present invention is: a heat dissipation method, comprising a capacitor, an insulating heat conductive material, an inverter controller casing, and a heat sink, wherein the capacitor is in close contact with the inverter controller casing through the insulating heat conductive material, and the contact portion controller casing A heat sink is distributed on the outer side, and the capacitor works to generate a thermal halo through the insulating heat conductive material to reach the inverter controller housing and is radiated to the surrounding air through the heat sink to achieve heat dissipation of the capacitor and ensure the reliability of the capacitor.
  • the heat sink is processed on the controller casing, or the heat sink is processed by using the same or different materials as the casing, and the heat sink is embedded or welded. The process is in close contact with the controller housing. To achieve the heat dissipation effect, the heat sink may be distributed on one side of the housing or on multiple sides.
  • the insulating and heat conducting material is disposed between the capacitor and the inverter housing, and functions as a capacitor to insulate the inverter housing and conduct heat inside the capacitor.
  • the specific installation position may be between the bottom of the capacitor and one side of the inverter housing, or between the bottom of the capacitor and the periphery of the inverter housing, and function as both insulation and heat conduction.
  • the insulating and thermally conductive material may be a conventional insulating and thermally conductive film, or other materials having an insulating and thermally conductive effect, such as an insulating and thermally conductive ceramic sheet, a silica gel, or the like.
  • the capacitor may be specially designed inside, and most of the heat may pass through a capacitor of the bottom conduction structure, or may be an ordinary aluminum electrolytic capacitor that dissipates heat around the aluminum case.
  • the capacitor heat-dissipating installation method of the invention solves the problem that the capacitor cannot be air-cooled or forced air-cooled and the liquid-cooled heat-dissipating installation is performed in the sealed casing of the electric vehicle inverter controller, and the heat generated by the capacitor works through the insulating and heat-conducting material,
  • the inverter housing is dissipated into the air outside the inverter housing through the heat sink, which solves the problem that the capacitor heats up in the sealed housing of the inverter, and the temperature inside the housing rises, which affects the reliability of the capacitor and the inverter. .
  • FIG. 1 is a schematic diagram of a heat-dissipating installation of a conventional air-cooled or forced air-cooled capacitor.
  • Figure 2 is a schematic diagram of the heat-dissipating installation method of the liquid-cooled radiator capacitor.
  • FIG. 3 is a schematic view showing the capacitor being integrally covered and fixed by the insulating and thermally conductive material body.
  • Fig. 4 is a schematic cross-sectional view showing the heat dissipation mounting manner of the capacitor of the heat sink of the inverter housing.
  • Fig. 5 is a schematic cross-sectional view showing the heat dissipation mounting manner of the capacitor of the heat sink with multiple sides of the inverter housing.
  • Example 1 The capacitor aluminum case 5 is covered with an insulating sleeve 6 and insulated from the capacitor clamp 4, and the clamp 4 mounts the capacitor on the fixed plate 1. After the capacitor 5 is fixed, the bottom is connected to the inverter controller outer casing 14 The side inner wall is in close contact with each other, and an insulating and heat conductive material 9 is disposed between the bottom of the capacitor and the inner wall of the outer casing 14. The capacitor is insulated from the outer casing, and the fins 13 are distributed on the outer side of the corresponding contact surface casing. The heat inside the capacitor is dissipated into the air outside the sealed casing 14 through the heat insulating material 9 and the inverter controller casing 14 via the heat sink 13 for heat dissipation purposes.
  • Example 2 The capacitor aluminum shell 5 is integrally covered with the insulating and thermally conductive material body 9.
  • the insulating heat dissipating material 9 at the bottom and the periphery of the capacitor and the contact surface of the inverter controller housing 1 are widely distributed on the outer side of the housing, and the capacitor 5 is widely distributed.
  • the bolt holes 12 on the insulating heat conductive material body 9 are fixed by the mounting bolts 3, or are fixed by glue or the like. When the upper cover of the inverter controller casing 14 is closed, the upper cover casing presses the insulating and thermally conductive material body 9 over which the capacitor is externally fixed.
  • the heat inside the capacitor is dissipated through the heat dissipating material 9 and the inverter controller casing 14 through the fins 13 to the air outside the inverter controller casing 14 for heat dissipation purposes. (See Figure 5)

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

A heat-dissipating structure for capacitors of electric vehicle inverters, comprising a capacitor, insulated heat-conducting material, an inverter shell, and heat-dissipating fins. The capacitor is in close contact with the inverter shell by means of the insulated heat-conducting material. Distributed on the outside of the inverter shell where the capacitor contacts the inverter are heat-dissipating fins. Heat produced during capacitor operation is transferred through the insulated heat-conducting material to the inverter shell, and then dissipated into the surrounding air through the heat-dissipating fins, thereby enabling the capacitor to dissipate heat.

Description

一种电容器在电动车辆逆变器中的散热结构  Heat dissipation structure of capacitor in electric vehicle inverter
技术领域： Technical field:
本发明涉及^:型铝电解电容器在电动汽车逆变控制器中应用的散热安装方式  The invention relates to a heat dissipation installation method of a ^: type aluminum electrolytic capacitor used in an electric vehicle inverter controller
背景技术： Background technique:
通常大容量铝电解电容器采用风冷却 （或强制风冷却）和液体冷却两种散热安装方式。 图 1为自然或强制风冷却的散热安装方式示意图， 电容器 5利用绝缘套管 6和底部绝缘 垫片 10保证与外部绝缘，利用卡箍 4将说电容器固定， 安装到固定安装板 1上。 电容器工作产 生的热量通过铝壳 5周围的绝缘套管 6和垫片 10与周围的空气进行热交换，将电容器的热量 传导出来， 达到降低电容器温度， 提高可靠性的目的。  Generally, large-capacity aluminum electrolytic capacitors are installed by air cooling (or forced air cooling) and liquid cooling. Fig. 1 is a schematic diagram of a heat-dissipating installation manner of natural or forced air cooling. The capacitor 5 is insulated from the outside by the insulating sleeve 6 and the bottom insulating spacer 10, and the capacitor is fixed by the clamp 4 and mounted on the fixed mounting board 1. The heat generated by the operation of the capacitor is exchanged with the surrounding air through the insulating sleeve 6 and the gasket 10 around the aluminum casing 5, and the heat of the capacitor is conducted to reduce the temperature of the capacitor and improve the reliability.
书  Book
图 2为液体冷却散热安装方式示意图， 电容器内部采用特殊结构后， 可以将电容器工作 时产生的热量大部分通过电容器底部传导出来。 将电容器 5底部与液冷散热器 7紧密接触， 并用螺栓 8旋紧， 底部和底部螺栓 8与液冷散热器 7接触面设置绝缘导热膜 9, 保证电容器 与散热器 7绝缘。 电容器热量经由绝缘导热膜 9传导到液冷散热器 7， 利用散热器内部液体 快速流动， 将热量带离散热器。达到降低电容器温度， 提高可靠性的目的，。 电容器其他部分 的绝缘和固定与图 1所示普通风冷散热安装方式相同。  Figure 2 is a schematic diagram of the liquid cooling and heat-dissipating installation. After the special structure inside the capacitor, most of the heat generated by the capacitor can be conducted through the bottom of the capacitor. The bottom of the capacitor 5 is in close contact with the liquid-cooled heat sink 7, and is fastened by bolts 8. The bottom and bottom bolts 8 are provided with an insulating and heat-conductive film 9 on the contact surface of the liquid-cooled heat sink 7, ensuring that the capacitor is insulated from the heat sink 7. The heat of the capacitor is conducted to the liquid-cooled heat sink 7 via the insulating and thermally conductive film 9, and the liquid inside the heat sink is quickly flowed to carry heat away from the heat sink. To achieve the purpose of reducing the capacitor temperature and improving reliability. The insulation and fixing of the other parts of the capacitor are the same as those of the conventional air-cooled heat dissipation shown in Figure 1.
由于电动汽车逆变器工作、 使用环境恶劣， 且需要具备防尘、 防盐雾、 耐冲击、 振动等 应用要求， 因此处于严格密闭的壳体内， 空气流动空间有限， 无法采用风冷式散热方式， 而 通常液冷散热系统安装工艺复杂， 且成本较高， 特别是很难在振动环境下保证可靠性。 因此 以上两种通常采用的电容器散热安装方式不适合电动汽车逆变控制器中实施采用， 发明内容：  Because the electric vehicle inverter works and the environment is harsh, and it needs to have dust, salt spray, shock resistance, vibration and other application requirements, it is in a tightly sealed housing, and the air flow space is limited, and air-cooled heat dissipation cannot be adopted. However, the liquid cooling system usually has a complicated installation process and high cost, and it is difficult to ensure reliability in a vibration environment. Therefore, the above two commonly used capacitor cooling installation methods are not suitable for implementation in the electric vehicle inverter controller, and the invention content:
本发明要解决的技术问题是， 针对电动汽车逆变控制器严格的使用、 安装条件， 提供一 种安装简单、 散热效果良好的散热安装方式。  The technical problem to be solved by the present invention is to provide a heat-dissipating installation method with simple installation and good heat dissipation effect for the strict use and installation conditions of the electric vehicle inverter controller.
本发明技术方案是： 一种散热方式， 包括电容器、 绝缘导热材料、 逆变控制器外壳、 散 热器， 所述电容器通过绝缘导热材料与逆变控制器外壳紧密接触， 且接触部位控制器壳体外 侧分布有散热片， 电容器工作产生热暈通过绝缘导热材料到达逆变控制器壳体经由散热片发 散到周围空气中， 达到电容器散热， 保证电容器可靠性的效果。  The technical solution of the present invention is: a heat dissipation method, comprising a capacitor, an insulating heat conductive material, an inverter controller casing, and a heat sink, wherein the capacitor is in close contact with the inverter controller casing through the insulating heat conductive material, and the contact portion controller casing A heat sink is distributed on the outer side, and the capacitor works to generate a thermal halo through the insulating heat conductive material to reach the inverter controller housing and is radiated to the surrounding air through the heat sink to achieve heat dissipation of the capacitor and ensure the reliability of the capacitor.
本发明所述的电容器散热安装方式中， 所述的散热器是在控制器壳体上加工而成， 或者 使用与壳体相同或不同的材料加工出散热片后， 将散热器嵌入或采用焊接等工艺与控制器壳 体紧密接触到一起的， 为达到散热效果， 散热片可以分布在壳体一个面， 也可以是多个侧面。 本发明所述的电容器散热安装方式中， 所述的绝缘导热材料设置在电容器和逆变器壳体 之间， 起到电容器对逆变器壳体绝缘和传导电容器内部热量的双重作用。.具体的安装位置可 以在电容器底部和逆变器壳体一个侧面之间， 也可以是在电容器底部和周围与逆变器壳体的 多个侧面之间， 起到绝缘和导热的双重作用。 绝缘导热材料可以是通常的绝缘导热膜， 也可 以是其他的具备绝缘导热效果的材料， 例如绝缘导热瓷片、 硅胶等等。 In the capacitor heat dissipation mounting method of the present invention, the heat sink is processed on the controller casing, or the heat sink is processed by using the same or different materials as the casing, and the heat sink is embedded or welded. The process is in close contact with the controller housing. To achieve the heat dissipation effect, the heat sink may be distributed on one side of the housing or on multiple sides. In the capacitor heat dissipation mounting method of the present invention, the insulating and heat conducting material is disposed between the capacitor and the inverter housing, and functions as a capacitor to insulate the inverter housing and conduct heat inside the capacitor. The specific installation position may be between the bottom of the capacitor and one side of the inverter housing, or between the bottom of the capacitor and the periphery of the inverter housing, and function as both insulation and heat conduction. The insulating and thermally conductive material may be a conventional insulating and thermally conductive film, or other materials having an insulating and thermally conductive effect, such as an insulating and thermally conductive ceramic sheet, a silica gel, or the like.
"本发明所述的电容器散热安装方式中， 所述的电容器可以是内部特别设计， 大部分热量 通过底部传导结构的电容器， 也可以是釆用铝壳周围散热的普通铝电解电容器。  In the heat dissipation mounting method of the capacitor according to the present invention, the capacitor may be specially designed inside, and most of the heat may pass through a capacitor of the bottom conduction structure, or may be an ordinary aluminum electrolytic capacitor that dissipates heat around the aluminum case.
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本发明所述的电容器散热安装方式， 解决了电动汽车逆变控制器密封壳体内， 电容器无 法进行风冷或强制风冷以及进行液冷散热安装的问题， 电容器工作产生的热量通过绝缘导热 材料、 逆变器壳体， 经由散热片发散到逆变器壳体书外侧的空气中， 解决了电容器在逆变器密 闭壳体内工作发热， 壳体内温度上升， 影响电容器及逆变器可靠性的问题。  The capacitor heat-dissipating installation method of the invention solves the problem that the capacitor cannot be air-cooled or forced air-cooled and the liquid-cooled heat-dissipating installation is performed in the sealed casing of the electric vehicle inverter controller, and the heat generated by the capacitor works through the insulating and heat-conducting material, The inverter housing is dissipated into the air outside the inverter housing through the heat sink, which solves the problem that the capacitor heats up in the sealed housing of the inverter, and the temperature inside the housing rises, which affects the reliability of the capacitor and the inverter. .
附图说明- 图 1为普通风冷式或强制风冷式电容器散热安装方式示意图。 BRIEF DESCRIPTION OF THE DRAWINGS - Figure 1 is a schematic diagram of a heat-dissipating installation of a conventional air-cooled or forced air-cooled capacitor.
图 2为液冷式散热器电容器散热安装方式示意图。  Figure 2 is a schematic diagram of the heat-dissipating installation method of the liquid-cooled radiator capacitor.
图 3为电容器被绝缘导热材料体整体包覆固定示意图。  FIG. 3 is a schematic view showing the capacitor being integrally covered and fixed by the insulating and thermally conductive material body.
图 4为逆变器壳体单侧面装散热片的电容器散热安装方式截面示意图。  Fig. 4 is a schematic cross-sectional view showing the heat dissipation mounting manner of the capacitor of the heat sink of the inverter housing.
图 5为逆变器壳体多侧面装散热片的电容器散热安装方式截面示意图。  Fig. 5 is a schematic cross-sectional view showing the heat dissipation mounting manner of the capacitor of the heat sink with multiple sides of the inverter housing.
图中数字标注说明： The numbers in the figure indicate:
I、 固定板 2、 电容器卡箍松紧调整螺丝 3、 安装固定螺丝  I, fixed plate 2, capacitor clamp elastic adjustment screw 3, mounting screws
4、 电容器卡箍 5、 电容器铝壳体 6、 电容器绝缘套管  4, capacitor clamp 5, capacitor aluminum housing 6, capacitor insulation sleeve
7、 水冷散热器 8、 电容器底部螺栓 9、 绝缘导热材料 10、 绝缘塾片 7. Water-cooled radiator 8. Capacitor bottom bolt 9. Insulating and heat-conducting material 10. Insulating cymbal
II、 螺栓孔口 12、 绝缘导热材料包覆体螺栓安装孔 13、 散热片 II. Bolt hole 12. Insulation and heat conductive material covering body bolt mounting hole 13, heat sink
14、 逆变控制器外壳体  14, inverter controller housing
具体实施例： Specific embodiment:
例 1: 电容器铝壳 5周围用绝缘套管 6包覆， 与电容器卡箍 4绝缘， 卡箍 4将电容器安 装到固定板 1上， 电容器 5固定之后， 底部与逆变控制器外壳体 14一侧内壁紧密接触， 电容 器底部与外壳体 14内壁之间设置有绝缘导热材料 9， 使电容器对外壳绝缘， 对应接触面壳体 外侧分布有散热片 13。 电容器内部热量通过绝缘导热材料 9和逆变控制器壳体 14,经由散热 片 13发散到密封壳体 14以外的空气中， 达到散热目的。 （见图 4) 例 2: 用绝缘导热材料体 9整体包覆电容器铝壳 5， 电容器底部和周围的绝缘散热材料 9 与逆变控制器壳体 1 接触面对应壳体外侧广泛分布散热片 13，电容器 5由绝缘导热材料体 9 上的螺栓孔 12安装螺栓 3固定， 或者用粘胶等固定。 当逆变控制器外壳 14上盖闭合后， 上 盖壳体压紧电容外覆的绝缘导热材料体 9， 起固定作用。 Example 1: The capacitor aluminum case 5 is covered with an insulating sleeve 6 and insulated from the capacitor clamp 4, and the clamp 4 mounts the capacitor on the fixed plate 1. After the capacitor 5 is fixed, the bottom is connected to the inverter controller outer casing 14 The side inner wall is in close contact with each other, and an insulating and heat conductive material 9 is disposed between the bottom of the capacitor and the inner wall of the outer casing 14. The capacitor is insulated from the outer casing, and the fins 13 are distributed on the outer side of the corresponding contact surface casing. The heat inside the capacitor is dissipated into the air outside the sealed casing 14 through the heat insulating material 9 and the inverter controller casing 14 via the heat sink 13 for heat dissipation purposes. (See Figure 4) Example 2: The capacitor aluminum shell 5 is integrally covered with the insulating and thermally conductive material body 9. The insulating heat dissipating material 9 at the bottom and the periphery of the capacitor and the contact surface of the inverter controller housing 1 are widely distributed on the outer side of the housing, and the capacitor 5 is widely distributed. The bolt holes 12 on the insulating heat conductive material body 9 are fixed by the mounting bolts 3, or are fixed by glue or the like. When the upper cover of the inverter controller casing 14 is closed, the upper cover casing presses the insulating and thermally conductive material body 9 over which the capacitor is externally fixed.
电容器内部热量通过绝缘导热材料 9和逆变控制器壳体 14经由散热片 13发散到逆变控 制器密封壳 14以外的空气中， 达到散热目的。 （见图 5)  The heat inside the capacitor is dissipated through the heat dissipating material 9 and the inverter controller casing 14 through the fins 13 to the air outside the inverter controller casing 14 for heat dissipation purposes. (See Figure 5)
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Claims

权 利 要 求 书 Claims
、 一种电容器在电动车辆逆变器中的散热方式， 包括电容器、绝缘导热材料、逆变控制器外 壳、散热器， 所述电容器通过绝缘导热材料与逆变控制器外壳紧密接触， 且接触部位控制 器壳体外侧分布有散热片，电容器工作产生热量通过绝缘导热材料到达逆变控制器壳体经 由散热片发散到周围空气中， 达到电容器散热， 保证电容器可靠性的效果。 a heat dissipation method of a capacitor in an electric vehicle inverter, comprising a capacitor, an insulating heat conductive material, an inverter controller casing, and a heat sink, wherein the capacitor is in close contact with the inverter controller casing through the insulating heat conductive material, and the contact portion A heat sink is distributed outside the controller casing, and the capacitor works to generate heat through the insulating heat conductive material to the inverter controller casing and is radiated to the surrounding air through the heat sink to achieve heat dissipation of the capacitor and ensure the reliability of the capacitor.
、 根据权利要求 1所述的电容器散热方式中，散热器是在控制器壳体上加工而成，或者使用 与壳体相同及不同的材料加工出散热片后，将散热器嵌入或采用焊接等工艺与控制器壳体 紧密接触到一起的，为达到散热效果，散热片可以分布在壳体一个面，也可以是多个侧面。 、 根据权利要求 1所述的电容器散热方式中，所述的绝缘导热材料设置在电容器和逆变器壳 体之间，具体的安装位置可以在电容器底部和逆变器壳体一个侧面之间， 也可以是在电容 器底部和周围与逆变器壳体的多个侧面之间， 起到绝缘和导热的双重作用。 The capacitor heat dissipation method according to claim 1, wherein the heat sink is processed on the controller casing, or the heat sink is processed by using the same material and different materials as the casing, and the heat sink is embedded or welded. The process is in close contact with the controller housing. To achieve heat dissipation, the heat sink can be distributed on one side of the housing or on multiple sides. The capacitor heat dissipation method according to claim 1, wherein the insulating and heat conductive material is disposed between the capacitor and the inverter housing, and the specific mounting position may be between the bottom of the capacitor and one side of the inverter housing. It may also serve as a dual function of insulation and heat conduction between the bottom and the periphery of the capacitor and the plurality of sides of the inverter housing.
、 根据权利要求 1所述的电容器散热方式中， 电容器、 绝缘导热材料、 逆变控制器外壳、散 热片之间是紧密接触在一起的，保证热量传导到达散热片， 由散热片将电容器产生的热量 发散到密封壳以外的空气中。 The capacitor heat dissipation method according to claim 1, wherein the capacitor, the insulating heat conductive material, the inverter controller casing, and the heat sink are in close contact with each other to ensure heat conduction to the heat sink, and the capacitor generates the capacitor. The heat is dissipated into the air outside the sealed enclosure.
PCT/CN2012/000136 2011-02-21 2012-02-01 Heat dissipating structure for capacitors of electric vehicle inverters WO2012113264A1 (en)

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CN201110041265.2 2011-02-21
CN2011100412652A CN102646513A (en) 2011-02-21 2011-02-21 Radiating installation mode of large aluminium electrolytic capacitor in inverse controller of an electric vehicle

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US10477733B1 (en) 2018-06-14 2019-11-12 Ford Global Technologies, Llc Inverter capacitor system having internal cooling channel
CN111029138B (en) * 2019-12-27 2022-01-21 安徽航睿电子科技有限公司 Intelligent capacitor for 5G transmitter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000307277A (en) * 1999-04-26 2000-11-02 Matsushita Refrig Co Ltd Power controller
JP2005243803A (en) * 2004-02-25 2005-09-08 Mitsubishi Electric Corp Capacitor board with heatsink
CN2849439Y (en) * 2004-12-31 2006-12-20 彭洲龙 High-power LED lighting lamp
JP2008148530A (en) * 2006-12-13 2008-06-26 Toshiba Corp Inverter apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000307277A (en) * 1999-04-26 2000-11-02 Matsushita Refrig Co Ltd Power controller
JP2005243803A (en) * 2004-02-25 2005-09-08 Mitsubishi Electric Corp Capacitor board with heatsink
CN2849439Y (en) * 2004-12-31 2006-12-20 彭洲龙 High-power LED lighting lamp
JP2008148530A (en) * 2006-12-13 2008-06-26 Toshiba Corp Inverter apparatus

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