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A power transmission circuit and device

A technology of electric energy transmission and electric device, applied in the field of technical power supply, can solve problems such as inability to obtain low-voltage power supply and power battery status monitoring, and achieve the effects of reducing safety risks, prolonging monitoring time, and avoiding safety accidents

Active Publication Date: 2020-05-05
CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, when the electric vehicle is parked and not in use, it is necessary to switch the power supply of the low-voltage power supply device through the main switch to ensure the safety of the power battery and high-voltage components. At this time, the battery management system (Battery Management System, BMS) and other low-voltage The electrical device cannot receive low-voltage power supply, so it is impossible to monitor the state of the power battery

Method used

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  • A power transmission circuit and device
  • A power transmission circuit and device
  • A power transmission circuit and device

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Embodiment Construction

[0043] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0045] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0046] It should be understood th...

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Abstract

The embodiment of the invention provides an electric energy transmission circuit and device. The electric energy transmission circuit comprises a wake-up sub-circuit, a high-voltage control sub-circuit and a power conversion sub-circuit, wherein the wake-up sub-circuit is connected to a power supply main loop of a high-voltage power supply device and used for receiving power supply of the high-voltage power supply device for operation and outputting a drive signal when receiving a wake-up signal, the high-voltage control sub-circuit is arranged on the power supply main loop of the high-voltagepower supply device, connected with the wake-up sub-circuit and used for switching on the power supply main loop when receiving the drive signal, and the power conversion sub-circuit is connected between the high-voltage control sub-circuit and a low-voltage electric device and used for transmitting electric energy provided by the high-voltage power supply device to the low-voltage electric device after performing power conversion on the electric energy when the power supply main loop is switched on. Thus, according to the technical scheme, the electric energy transmission circuit and deviceare used for supplying power to a BMS or other low-voltage electric devices through a power battery or other high-voltage power supply devices when the electric vehicle is in a parked non-use state.

Description

【Technical Field】 [0001] The invention relates to the field of technical power supply, in particular to an electric energy transmission circuit and device. 【Background technique】 [0002] In special battery application scenarios such as electric vehicles, for safety reasons, it is necessary to continuously monitor the working status of high-voltage power batteries in electric vehicles. However, when the electric vehicle is parked and not in use, it is necessary to switch the power supply of the low-voltage power supply device through the main brake to ensure the safety of the power battery and high-voltage components. Then, at this time, the battery management system (Battery Management System, BMS) and other low-voltage applications The electric device cannot obtain low-voltage power supply, and thus cannot realize the status monitoring of the power battery. [0003] In the prior art, BMS is generally used to detect the working status of the power battery. Therefore, when the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00B60L58/10
CPCB60L58/10Y02T10/70
Inventor 缪晓忠
Owner CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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