Battery heat adjustment circuit and method, storage medium and electronic device

Patent metadata

Field	Value
Publication number	US-11588194-B2
Application number	US-202017000387-A
Country	US
Kind code	B2
Filing date	Aug 24, 2020
Priority date	Aug 24, 2020
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

Provided in embodiments of the disclosure are a battery heat adjustment circuit and method, a storage medium and an electronic device. The circuit includes a battery pack, the battery pack including at least two battery blocks, and each battery block including one or more battery cells; a first controller, respectively connected to partial battery blocks included in the battery pack, and configured to detect a state of partial battery blocks included in the battery pack and control, based on a state detection result, partial battery blocks included in the battery pack to discharge; and a heat adjustment loop, connected to the first controller, and configured to respectively adjust, by using electric energy released by partial battery blocks included in the battery pack, heat of partial battery blocks included in the battery pack. By means of the disclosure, the problems that heating and heat balance of zones in the battery may not be simultaneously solved in the relevant art is solved.

First claim

What is claimed is:

1. A battery heat adjustment circuit, comprising:
a battery pack, wherein the battery pack comprises at least two battery blocks, and each battery block comprises one or more battery cells;
a first controller, respectively connected to at least two battery blocks comprised in the battery pack, and configured to respectively detect a state of at least two battery blocks comprised in the battery pack and respectively control, based on a state detection result, at least two battery blocks comprised in the battery pack to discharge; and
a heat adjustment loop, connected to the first controller, and configured to respectively adjust, by using electric energy released by at least two battery blocks comprised in the battery pack, heat of at least two battery blocks comprised in the battery pack;
wherein the heat adjustment loop comprises a heat adjuster and a valve assembly box, the heat adjuster is connected to the first controller, and is configured to adjust a temperature of a cooling liquid by using the electric energy released by at least two battery blocks comprised in the battery pack; the valve assembly box is configured to distribute the cooling liquid flowing through at least two battery blocks comprised in the battery pack, and respectively control a flow velocity of the cooling liquid flowing through at least two battery blocks comprised in the battery pack;
wherein the heat adjustment loop further comprises an energy storage circuit, the energy storage circuit is connected to the first controller, and is configured to store the electric energy released by at least two battery blocks comprised in the battery pack and adjust a temperature of a cooling liquid by using the stored electric energy;
wherein the energy storage circuit comprises an energy storage device, a second controller, a function device, the energy storage device is connected to the first controller, and is configured to store the electric energy released by at least two battery blocks comprised in the battery pack; the second controller is connected to the energy storage device, and is configured to control the stored electric energy in the energy storage device to release to a function device; and the function device is connected to the second controller, and is configured to adjust the temperature of the cooling liquid under the driving of the electric energy released by the second controller.

2. The circuit according to claim 1 , wherein the energy storage device comprises at least one of the following devices:
a capacitor, a battery, and an inductor.

3. The circuit according to claim 1 , wherein the function device comprises at least one of the following devices:
a heat pump, an electrical heater, a coolant compressor, and a cooling fan.

4. A battery heat adjustment method, comprising:
detecting a state of at least two battery blocks comprised in a battery pack, wherein the battery pack comprises at least two battery blocks, and each battery block comprises one or more battery cells;
respectively controlling, based on a state detection result, at least two battery blocks comprised in the battery pack to discharge; and
adjusting, by using electric energy released by at least two battery blocks comprised in the battery pack, heat of at least two battery blocks comprised in the battery pack;
wherein adjusting, by using electric energy released by at least two battery blocks comprised in the battery pack, heat of at least two battery blocks comprised in the battery pack comprises: adjusting a temperature of a cooling liquid by using the electric energy released by at least two battery blocks comprised in the battery pack; and distributing, based on a temperature of at least two battery blocks comprised in the battery pack, the cooling liquid flowing through at least two battery blocks comprised in the battery pack, and respectively controlling a flow velocity of the cooling liquid flowing through at least two battery blocks comprised in the battery pack, so as to adjust the heat of at least two battery blocks comprised in the battery pack;
wherein adjusting, by using electric energy released by at least two battery blocks comprised in the battery pack, heat of at least two battery blocks comprised in the battery pack comprises:
storing the electric energy released by at least two battery blocks comprised in the battery pack and adjusting a temperature of a cooling liquid by using the stored electric energy; and
distributing, based on a temperature of at least two battery blocks comprised in the battery pack, the cooling liquid flowing through at least two battery blocks comprised in the battery pack, and respectively controlling a flow velocity of the cooling liquid flowing through at least two battery blocks comprised in the battery pack, so as to adjust the heat of at least two battery blocks comprised in the battery pack.

5. A computer-readable storage medium, storing a computer program, wherein the computer program is configured to perform the method according to claim 4 during running.

6. An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the method according to claim 4 .

Assignees

• Guangzhou Automobile Group Co

Inventors

• Liu Jiarui
• Yang Bozhi
• Li Xiaohui

Classifications

• H01M10/625

  Vehicles · CPC title

• H01M10/482 Primary

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M10/44

  Methods for charging or discharging (circuits for charging H02J7/00) · CPC title

• H01M10/617

  for achieving uniformity or desired distribution of temperature · CPC title

• H01M10/615

  Heating or keeping warm · CPC title