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Capacitor module for use in inverter

A technology of capacitors and inverters, applied in the field of capacitor modules, which can solve the problems of damaged capacitor modules and inability to effectively discharge heat, and achieve the effect of low equivalent series resistance and small size

Active Publication Date: 2020-04-17
VALEO SIEMENS EAUTOMOTIVE (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the heat generated by the capacitor elements inside the housing 30, which may damage the capacitor module 10-1, may not be effectively discharged.

Method used

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  • Capacitor module for use in inverter
  • Capacitor module for use in inverter
  • Capacitor module for use in inverter

Examples

Experimental program
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Embodiment Construction

[0054] image 3 An embodiment of the inverter 1 according to the present invention will be described. Such an inverter 1 is intended to be used in an electric vehicle or a hybrid vehicle (not shown) to control an electric motor (not shown) of said vehicle. The inverter 1 includes an enclosure 1A and an installation wall 1B ( Figure 13 and Figure 14 As described above) on the capacitor module 10-2. The inverter 1 may further include a power module (not shown in the figure).

[0055] The capacitor module 10-2 is configured to convert DC power received from a power source (not shown) such as a battery pack into AC power intended for controlling the electric motor. In this example, capacitor module 10-2 is configured to convert direct current into three alternating current (or phase) currents. Alternatively, without limiting the scope of the present invention, the power module 10-2 may be configured to change the direct current to be larger or smaller than the three-phase cu...

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PUM

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Abstract

A capacitor module (10-2), in particular for use in an inverter (1) of an electrical or a hybrid vehicle, said capacitor module (10-2) comprises a housing (300), at least one capacitor element (110,120) mounted in said housing (300) and at least one busbar (210, 220) at least partially mounted into said housing (300) and electrically connected to said capacitor element (110,120), the housing (300)comprises a bottom wall (305), a side wall (310) and an upper wall (320), wherein said upper wall (320) comprises a peripheral portion (320A) made of a sealing material and a central portion (320B) made of a thermal dissipation material, the thermal conductivity of the thermal dissipation material is bigger than the thermal conductivity of the sealing material.

Description

technical field [0001] The present invention relates to a capacitor module, in particular for an inverter, and more precisely to a capacitor module that simultaneously provides sealing and thermal dissipation of the heat generated by the capacitor module when it is energized. Background technique [0002] In recent years, technologies related to electric vehicles or hybrid vehicles that run by using electric power are rapidly being developed. An electric vehicle or a hybrid vehicle includes an electric motor that generates rotational force, an inverter for controlling the electric motor, and a battery pack for powering the inverter. [0003] In existing solutions, the inverter comprises a power module and an electrical control unit both mounted in a casing and a capacitor module mounted on said casing. The electric control unit drives the power module to convert the direct current supplied by the battery pack into alternating current, generally called "phase current", to co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/228
CPCH01G4/228H01G4/236H01G4/38H01G4/32H01G2/103H01G2/106H01G11/10H01G11/82Y02T10/70Y02E60/13H01G2/08H01G11/18H02M7/48
Inventor 黎荣辉仇钰刘军王慧玲
Owner VALEO SIEMENS EAUTOMOTIVE (SHENZHEN) CO LTD