CN-121989515-A - Temperature adjusting unit and manufacturing method thereof

Abstract

The invention provides a temperature adjusting unit and a manufacturing method thereof. In the temperature adjustment unit, a groove portion that serves as a fluid flow path is formed in the first metal plate and the second metal plate, and the first metal plate and the second metal plate are overlapped and joined. The temperature adjustment unit includes a chemical joint portion that joins a planar portion of a first metal plate material and a planar portion of a second metal plate material that face each other by chemical joint, a mechanical joint portion that is provided at the chemical joint portion and joins by mechanical joint, and a joint planar portion that is provided around the mechanical joint portion, protrudes in a direction intersecting a flow path with respect to the groove portion, and is alternately formed along a flow direction of a fluid on both sides of the flow path.

Inventors

• XIAO LINXIANG
• Denda Daichi
• Koh Kohei
• LIN YIZHI
• SAITO YUTARO

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260508

Application Date

20251022

Priority Date

20241101

Claims (4)

1. 1. A temperature adjusting unit is provided with a groove part which becomes a fluid flow path formed on at least one of a first metal plate and a second metal plate, wherein the first metal plate and the second metal plate are overlapped and jointed, The temperature adjustment unit has: A chemical bonding portion that bonds the planar portion of the first metal plate material and the planar portion of the second metal plate material that face each other by chemical bonding; a mechanical joint part provided in the chemical joint part and joined by mechanical joint, and A joint plane part arranged around the mechanical joint part, The joint flat portions protrude in a direction intersecting the flow path with respect to the groove portions, and are alternately formed along a flow direction of the fluid on both sides of the flow path.
2. 2. The temperature adjustment unit according to claim 1, wherein, The groove portion is formed in a meandering manner, The mechanical joint is formed between adjacent flow paths.
3. 3. The temperature adjustment unit according to claim 1, wherein, The mechanical joint is joined by press riveting.
4. 4. A method for manufacturing a temperature adjustment unit according to any one of claims 1 to 3, The manufacturing method of the temperature adjusting unit comprises the following steps: Performing surface modification on the planar portion of the first metal plate material and the planar portion of the second metal plate material which face each other; Applying an adhesive to at least one of the planar portion of the first metal plate and the planar portion of the second metal plate facing each other; Overlapping the planar portion of the first metal plate and the planar portion of the second metal plate facing each other, and And jointing the overlapped plane part of the first metal plate and the overlapped plane part of the second metal plate through press riveting.

Description

Temperature adjusting unit and manufacturing method thereof Technical Field The present disclosure relates to a temperature adjustment unit and a method of manufacturing the temperature adjustment unit. Background A temperature adjustment unit is disclosed in japanese patent laid-open No. 2024-61456. The temperature adjusting means is provided on at least one of the first metal plate and the second metal plate, and the two metal plates are overlapped with an adhesive agent in a state of being coated around a groove forming a fluid flow path, and a mechanical joint portion is formed at a portion coated with the adhesive agent. Disclosure of Invention In japanese patent application laid-open No. 2024-61456, a circular joining planar portion of a predetermined diameter is required in order to mechanically join two metal plates after being overlapped. Further, if the flow path width is increased to improve the heat exchange efficiency of the temperature adjustment means, the joint plane portion may protrude into the flow path. If the joint plane portion protrudes toward the flow path, the flow of the fluid is blocked, and the desired heat exchange efficiency cannot be obtained. The present disclosure provides a temperature adjusting unit and a method for manufacturing the temperature adjusting unit, which can obtain a desired heat exchange efficiency without impeding the flow of a fluid even if a joint plane portion for mechanical joint protrudes to a flow path. The present disclosure relates to a temperature adjustment unit in which a groove portion that becomes a flow path of a fluid is formed in at least one of a first metal plate material and a second metal plate material, the first metal plate material and the second metal plate material being overlapped and joined, the temperature adjustment unit having a chemical joining portion that joins a planar portion of the first metal plate material and a planar portion of the second metal plate material that face each other by chemical joining, a mechanical joining portion that is provided in the chemical joining portion and joined by mechanical joining, and a joining planar portion that protrudes in a direction intersecting the flow path with respect to the groove portion and that is alternately formed along a flow direction of the fluid on both sides of the flow path. With this configuration, a desired heat exchange efficiency can be obtained without impeding the flow of the fluid. The groove portion is formed in a meandering manner, and the mechanical joint portion is formed between the adjacent flow paths. With this configuration, a desired heat exchange efficiency can be obtained without impeding the flow of the fluid. The mechanical joint is joined by press riveting. With this configuration, a desired heat exchange efficiency can be obtained without impeding the flow of the fluid. The method for manufacturing the temperature adjustment unit includes the steps of performing surface modification on a planar portion of the first metal plate and a planar portion of the second metal plate which face each other, applying an adhesive to at least one of the planar portion of the first metal plate and the planar portion of the second metal plate which face each other, overlapping the planar portion of the first metal plate and the planar portion of the second metal plate which face each other, and joining the overlapped planar portions of the first metal plate and the second metal plate by caulking. With this structure, the adhesive can be left at the mechanical joint portion during the mechanical joining, and the joining strength between the first metal plate material and the second metal plate material can be increased. According to the present disclosure, it is possible to provide a temperature adjustment unit and a method of manufacturing the temperature adjustment unit, which can obtain a desired heat exchange efficiency without impeding the flow of fluid even if a joint plane portion for performing mechanical joint protrudes toward a flow path. Drawings Features, advantages, technical and industrial significance of embodiments of the present invention are described below with reference to the accompanying drawings, in which like reference numerals refer to like elements. Fig. 1 is a schematic plan view of a temperature adjustment unit according to embodiment 1. Fig. 2 is a sectional view of the temperature adjusting unit of the two-dot chain line section of fig. 1 viewed from the II direction. Fig. 3 is a schematic structural view for explaining press-riveting joining. Fig. 4 is a sectional view corresponding to fig. 2 of the temperature adjustment means of embodiment 2. Detailed Description Embodiments of the present disclosure will be described below with reference to the drawings. Fig. 1 is a schematic plan view of a temperature adjustment unit according to embodiment 1. Fig. 2 is a sectional view of the temperature adjusting unit of the two-dot chain line