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Vehicle-mounted power supply system

A technology of power supply system and generator, which is applied in the direction of current collectors, electric vehicles, vehicle parts, etc., can solve the problem of the overall weight of the power supply system, and achieve the effects of low capacity, miniaturization, and light weight

Pending Publication Date: 2021-11-26
IMASEN ELECTRIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, the power supply system as a whole tends to be heavy due to the use of lead in the electrodes
Furthermore, due to the use of sulfuric acid as electrolyte, the danger of damage has been pointed out

Method used

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Embodiment

[0042] In the following, refer to figure 1 , image 3 as well as Figure 4 The configuration and operation of the power supply system 1 in which lithium-ion batteries are applied to the primary power storage device 2 and the secondary power storage device 3 are described in detail. In addition, refer to Figure 6 A comparative example in which the power supply is not multiplexed is described.

[0043] (Example)

[0044] Such as figure 1 As shown, the primary power storage device 2 according to this embodiment is provided with four batteries 2a, 2b, 2c, 2d, and each battery includes four lithium-ion cells. In this embodiment, a lithium-ion battery cell with an output voltage of 3V is applied to each power storage device. As a result, the maximum output voltage supplied from the high-voltage output terminal 11 by the primary power storage device 2 is 48V. Meanwhile, the voltage of the electric power supplied from the output terminal 24 by the secondary power storage devic...

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PUM

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Abstract

Provided is a vehicle-mounted power supply system that multiplexes power supplies in a vehicle and reliably supplies power of a voltage varying from a high voltage to a low voltage, without using a lead battery. A vehicle-mounted power supply system 1 according to the present invention is provided with a primary power storage device 2, a secondary power storage device 3, and a power generation device 4. The primary power storage device 2 has a high-voltage output terminal 11 and a low-voltage output terminal 12. The power generation device 4 supplies power to the primary power storage device 2 and the secondary power storage device 3. The power supply system 1 is further provided with: a first switch 21 disposed between the power generation device 4 and the primary power storage device 2; a second switch 22 disposed between the power generation device 4 and the secondary power storage device 3; and a third switch 23 disposed between the low-voltage output terminal 12 of the primary power storage device 2 and the output terminal 13 of the secondary power storage device. The power supply system 1 is characterized in that the power generation device 4 is a power generator 42 provided with an inverter 41, or a power generator that can output a variable voltage.

Description

technical field [0001] The invention relates to a vehicle power supply system. Specifically, the present invention relates to an on-vehicle power supply system that includes a power generating device and a power storage device, and supplies power at two or more different voltages. Background technique [0002] An in-vehicle power storage device capable of supplying power at a high voltage of 48V or 24V is known as a battery in which a plurality of battery cells are connected in series. Such high-voltage power storage devices mainly supply power to the electric motor that drives the vehicle. Typically, a vehicle equipped with a high-voltage power storage device is also equipped with a separate power storage device that supplies low-voltage power to components such as the vehicle's electrical system. [0003] Figure 5 The configuration of a conventionally known power supply system 101 is schematically shown. The power supply system 101 includes a power storage device 102 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/03H02J7/00H02J7/16
CPCB60R16/03H02J7/00H02J7/16H02J7/345H02J7/34H02J7/1423H02J2310/46H02J2310/48B60R16/0315B60R16/033H02J7/0013
Inventor 高桥正好槙尾大介
Owner IMASEN ELECTRIC IND
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