US 12,211,985 B2Granted

Temperature control assembly and battery pack

AssigneeContemporary Amperex Technology (Hong Kong) Limited

InventorsBuwei Wu, Yincheng Huang, Yongqiang Su, Linggang Zhou, Fenggang Zhao, Songqiao Chen

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Abstract

The present application provides a temperature control assembly and a battery pack. The temperature control assembly includes a first side plate, a second side plate, and an elastic thermal pad. The elastic thermal pad has a main body that includes: a first plate section close to the first side plate in a longitudinal direction and extending in a vertical direction; a second plate section close to the second side plate in the longitudinal direction and extending in the vertical direction; and a connection section extending obliquely from the first side plate toward the second side plate and connected to the first and second plate sections. Due to elastic and structural characteristics of the elastic thermal pad, the main body of the elastic thermal pad is deformed under the action of extrusion to absorb the expansion forces of the batteries in time, thus greatly improving the service life of the batteries.

Claims17

Dependent claims

A temperature control assembly disposed in a battery pack, the temperature control assembly comprising:

a first side plate abutting a first battery of the battery pack, the first side plate comprises a first body, configured to extend in a vertical direction;
and two first extension portions, each of the first extension portions is configured to be connected to one end of the first body and extend in a longitudinal direction;
a second side plate abutting a second battery of the battery pack, disposed relative to the first side plate along a longitudinal direction of the temperature control assembly, wherein the second side plate is connected to the first side plate and forms a cavity together with the first side plate;
and
at least one elastic thermal pad, movably disposed in the cavity to divide the cavity into a plurality of passages, wherein
the elastic thermal pad comprises a main body, and the main body comprises:
a first plate section, configured to be close to the first side plate in the longitudinal direction and extend in a vertical direction of the temperature control assembly, wherein the first plate section is distanced from the second side plate;
a second plate section, configured to be close to the second side plate in the longitudinal direction and extend in the vertical direction;
and
a connection section, configured to extend obliquely from the first side plate toward the second side plate and be connected to the first plate section and the second plate section, wherein the main body of the elastic thermal pad is deformed under an action of extrusion of the first side plate and the second side plate to absorb expansion forces of the first battery and/or the second battery,
wherein the elastic thermal pad further comprises a compression portion disposed between and connected to one of the first extension portions and one end of the main body, the compression portion is formed as an arch structure and comprises:
a third plate section, configured to extend in the vertical direction and be spaced from the first side plate and the second side plate in the longitudinal direction;
a first extrusion section, configured to extend obliquely from the third plate section toward the first side plate and be connected to the third plate section and the main body;
and a second extrusion section, configured to extend obliquely from the third plate section toward the first side plate and be connected to the third plate section and one of the first extension portions.

11 more elements

A battery pack comprising a plurality of batteries and a temperature control assembly, wherein the plurality of batteries is arranged in a longitudinal direction of the temperature control assembly and comprises a first battery and a second battery, and the temperature control assembly is disposed between the first battery and the second battery, wherein the temperature control assembly comprises:

a first side plate abutting the first battery and directly facing a large surface of the first battery along the longitudinal direction, the first side plate comprises a first body, configured to extend in a vertical direction;
and two first extension portions, each of the first extension portions is configured to be connected to one end of the first body and extend in the longitudinal direction;
a second side plate abutting the second battery and directly facing a large surface of the second battery along the longitudinal direction, wherein the second side plate is connected to the first side plate and forms a cavity together with the first side plate;
and
an elastic thermal pad, disposed in the cavity to divide the cavity into a plurality of passages, wherein
the elastic thermal pad comprises a main body, and the main body comprises:
a first plate section, configured to be close to the first side plate in the longitudinal direction and extend in a vertical direction of the temperature control assembly;
a second plate section, configured to be close to the second side plate in the longitudinal direction and extend in the vertical direction;
and
a connection section, configured to extend obliquely from the first side plate toward the second side plate and be connected to the first plate section and the second plate section, wherein the main body of the elastic thermal pad is deformed under an action of extrusion of the first side plate and the second side plate to absorb expansion forces of the first battery and/or the second battery
wherein the elastic thermal pad further comprises a compression portion disposed between and connected to one of the first extension portions and one end of the main body, the compression portion is formed as an arch structure and comprises:
a third plate section, configured to extend in the vertical direction and be spaced from the first side plate and the second side plate in the longitudinal direction;
a first extrusion section, configured to extend obliquely from the third plate section toward the first side plate and be connected to the third plate section and the main body;
and a second extrusion section, configured to extend obliquely from the third plate section toward the first side plate and be connected to the third plate section and one of the first extension portions.

11 more elements

An apparatus comprising a battery pack, wherein the battery pack is configured to provide electrical energy and the battery pack comprises a plurality of batteries and a temperature control assembly, wherein the plurality of batteries is arranged in a longitudinal direction of the temperature control assembly and comprises a first battery and a second battery, and the temperature control assembly is disposed between the first battery and the second battery, and the temperature control assembly comprises:

a first side plate abutting the first battery and directly facing a large surface of the first battery along the longitudinal direction, the first side plate comprises a first body, configured to extend in a vertical direction;
and two first extension portions, each of the first extension portions is configured to be connected to one end of the first body and extend in the longitudinal direction;
a second side plate abutting the second battery and directly facing a large surface of the second battery along the longitudinal direction, wherein the second side plate is connected to the first side plate and forms a cavity together with the first side plate;
and
an elastic thermal pad, disposed in the cavity to divide the cavity into a plurality of passages, wherein
the elastic thermal pad comprises a main body, and the main body comprises:
a first plate section, configured to be close to the first side plate in the longitudinal direction and extend in a vertical direction of the temperature control assembly;
a second plate section, configured to be close to the second side plate in the longitudinal direction and extend in the vertical direction;
and
a connection section, configured to extend obliquely from the first side plate toward the second side plate and be connected to the first plate section and the second plate section, wherein the main body of the elastic thermal pad is deformed under an action of extrusion of the first side plate and the second side plate to absorb expansion forces of the first battery and/or the second battery
wherein the elastic thermal pad further comprises a compression portion disposed between and connected to one of the first extension portions and one end of the main body, the compression portion is formed as an arch structure and comprises:
a third plate section, configured to extend in the vertical direction and be spaced from the first side plate and the second side plate in the longitudinal direction;
a first extrusion section, configured to extend obliquely from the third plate section toward the first side plate and be connected to the third plate section and the main body;
and a second extrusion section, configured to extend obliquely from the third plate section toward the first side plate and be connected to the third plate section and one of the first extension portions.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/123,026Filed 15 Dec 2020 · continuation
Priority: CN 201910528793.718 Jun 2019
Published: US 2021/0104789 A18 Apr 2021
Granted: 28 Jan 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

H01M 10/625
Specially adapted for specific applications: vehicles
H01M 10/6555
Rods or plates: arranged between the cells
F16F 1/027
Characterised by having a particular shape: planar, e.g. in sheet form; leaf springs
H01M 10/613
Types of temperature control: cooling or keeping cold