Abstract: A thermal management component is provided with a medium inlet, a medium outlet, and a medium flow channel. The medium flow channel is located inside the thermal management component, the medium flow channel communicates with the medium inlet and the medium outlet, and the medium flow channel is used to accommodate a fluid medium to regulate temperature of the battery. The thermal management component is internally provided with a cavity disconnected from both the medium inlet and the medium outlet.

Abstract: A thermal management component, a battery, and an electric apparatus are provided. The thermal management component includes a first wall; a second wall spaced apart from the first wall, where an accommodating space is present between the first wall and the second wall; and a support member, where the support member is disposed in the accommodating space oblique to an extension direction of the first wall or the second wall. In this way, the thermal management component can be compressed and undergo slight deformation, thereby reducing the impact of swelling of the battery cell on heat conduction between the battery cell and the thermal management component.

Abstract: A protective sleeve, a battery thermal management system, and a battery are provided. The protective sleeve is configured to sleeve a pipeline and includes a sleeve body, where the sleeve body includes a first bundling section, a first diameter-variable section, a protective section, a second diameter-variable section, and a second bundling section arranged in sequence. Diameters of the first bundling section and the second bundling section are smaller than diameter of the protective section, and the first bundling section and the second bundling section are capable of elastically clamping the pipeline, so as to fix the protective sleeve to the pipeline. This can improve the convenience of installing and removing the protective sleeve on the pipeline.

Abstract: A water cooling plate assembly includes: a harmonica reed plate, a first current collector, and a second current collector. The first current collector is disposed at a first end of the harmonica reed plate in the length direction. A first current collecting space communicating with a port at one end of the plurality of cooling channels is formed in the first current collector. A first liquid inlet and a first liquid outlet through which the cooling liquid flows into and out of the first collecting space respectively are formed on the first current collector on two sides in a thickness direction of the harmonica reed plate respectively.

Abstract: A battery includes a battery cell and a thermal management component. The thermal management component is configured to exchange heat with the battery cell. The thermal management component is provided with an avoidance structure, and the avoidance structure is configured to provide a space for expansion of the battery cell.