Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Inverter device

A technology for inverters and switching devices, which is applied in relays, transportation and packaging, and the conversion of irreversible DC power input to AC power output. It can solve the problems of device size expansion, reduce the installation space, and ensure the insulation distance. Effect

Inactive Publication Date: 2009-04-22
SANYO ELECTRIC CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the addition of this diode also leads to an increase in the overall size of the device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Inverter device
  • Inverter device
  • Inverter device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] FIG. 1 is a power circuit diagram of an embodiment of an air conditioner for an electric vehicle provided with the inverter device 8 of the present invention.

[0032] In FIG. 1, 1 is the main battery which is a DC power supply of an electric vehicle, and supplies electric power to the electric compressor 10 of an air conditioner through the inverter apparatus 8 of this invention. Although the DC voltage is output from the battery 1, it is supplied to the electric compressor 10 (the motor of the electric motor): converted into pseudo-inverter by the inverter module 35 (the inverter of the present invention) of the inverter device 8 to be described later. Three-phase AC voltage.

[0033] The above-described inverter device 8 includes a switch 2 as a switching device or a charging circuit 7 as a charging device, four capacitors 30 . . , discharge resistors 31 and 31 , and an inverter module 35 .

[0034] The above-described inverter module 35 is formed by arranging the s...

Embodiment 2

[0055] Next, in conjunction with Figure 4 and Figure 5 Yet another embodiment of the present invention is described.

[0056] 4 is a power supply circuit diagram showing the air conditioner for an electric vehicle of the invention in this case, Figure 5 It is a perspective view which shows the inverter module 135 of this Example.

[0057] In FIG. 4, reference numeral 101 denotes a main battery as a DC power supply for an electric vehicle, and an inverter configured via a switch 102 or a charging circuit 107 as a charging device, a capacitor 130, a discharging resistor 131, and an inverter module 135 of the present invention, etc. The inverter device 108 supplies DC power to the electric compressor 110 of the air conditioner. Although the DC voltage is output from the battery 101, the electric compressor 110 is supplied with a voltage converted into a pseudo-three-phase AC by an inverter module 135, which will be described later.

[0058] The inverter module 135 is formed ...

Embodiment 3

[0077] Next, another embodiment of the above inverter module will be described with reference to FIG. 6 . FIG. 6 shows a power supply circuit diagram of an example of an air conditioner for an electric vehicle including the inverter module 235 in this case. In addition, in FIG. 6, and FIG. 4 and Figure 5 Components with the same symbols are components that perform the same or similar functions.

[0078] In FIG. 6 , 235 is an inverter module of the present embodiment, and the voltage converted into three-phase pseudo-AC by the inverter module 235 is supplied to the electric compressor 110 .

[0079] The inverter module 235 is formed by arranging the switching element group 112 for converting the voltage into a three-phase pseudo-AC voltage by switching inside the mold assembly 140, as in the above-described embodiment. The switching element group 112 includes a switching element 114 and a diode (not shown) for absorbing operation overvoltage, and is connected between the pos...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An object is to provide an inverter device capable of detecting the welding of a switching device in early stages, and in summary, the inverter device is equipped with a parallel circuit of a charging circuit and a switch connected between a battery and an inverter module, and comprises a capacitor charged from the battery via the charging circuit; a resistor to discharge the capacitor; a serial circuit including resistors to detect a voltage after the switch; and a diode connected between a connection point of the serial circuit including the resistors on a positive line and a connection point of the capacitor, and directed forward to the capacitor side.

Description

technical field [0001] The present invention relates to a parallel circuit including a charging device and a switching device connected between a DC power supply and an inverter; and a group of switching elements for converting a DC voltage into a three-phase pseudo AC voltage by switching is provided inside a mold assembly And form the inverter module. Background technique [0002] In recent years, as an air conditioner for an electric vehicle, an air conditioner equipped with an electric compressor driven by a battery power source has been developed. like Figure 7 As shown, the air conditioner is composed of a battery (DC power source) 401 , an inverter device 408 and an electric compressor 410 . [0003] The inverter device 408 includes: a switch 402 as a switch device connected in series with the battery 401; a charging device 411 connected in parallel with the switch 402 and composed of a resistor 404 and a switch 403; The inverter module 405 and the capacitor 406 ar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/07H02M7/42H01H47/00B60H1/22H02M7/48
Inventor 野岛健二佐佐木重晴
Owner SANYO ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com