JP-2026075026-A - Radiator and method for manufacturing the same

JP2026075026AJP 2026075026 AJP2026075026 AJP 2026075026AJP-2026075026-A

Abstract

[Problem] To provide a radiator that is easy to manufacture, has a high pass rate, is easy to mass-produce, and has superior heat transfer properties, as well as a method for manufacturing the same. [Solution] The radiator includes a base frame and a heat dissipation member. A cavity 111 for housing the heat dissipation member is opened on one side of the base frame, and a stepped groove 112 is opened on the side away from the cavity. A cavity opening 113 communicating with the cavity is opened in the inner bottom wall of the stepped groove. The heat dissipation member includes a heat transfer plate 210, heat transfer bumps, and several heat sinks 230. Each heat sink is provided at intervals on the same side of the heat transfer plate, and the heat transfer bumps are provided on the side of the heat transfer plate away from the heat sinks. The heat transfer plate is fitted and housed within the stepped groove and penetrates the cavity opening. The outer wall of the heat transfer bump and the inner wall of the cavity opening are sealed and connected. The radiator is assembled and welded together with the base frame and the heat dissipation member. [Selection Diagram] Figure 2

Inventors

黄耀明

Assignees

虎之芸精密部件（恵州）有限公司

Dates

Publication Date: 20260507
Application Date: 20250124
Priority Date: 20241021

Claims (10)

It is a radiator, A base frame having a cavity on one side for housing a heat dissipation member, a stepped groove further opened on the side away from the cavity, and a cavity opening communicating with the cavity opened in the inner bottom wall of the stepped groove, A heat dissipation member comprising a heat transfer plate, heat transfer bumps, and several heat sinks, wherein each heat sink is provided at intervals on the same side surface of the heat transfer plate, the heat transfer bumps are provided on the side surface of the heat transfer plate away from the heat sinks, the heat transfer plate is fitted and housed within the stepped groove, and the heat transfer bumps are provided penetrating the cavity opening, and the outer wall of the heat transfer bump and the inner wall of the cavity opening are sealed and connected. A radiator characterized by including the following.
The radiator according to claim 1, characterized in that the outer wall of the heat transfer bump and the inner wall of the cavity opening are welded together.
The radiator according to claim 2, characterized in that the outer wall of the heat transfer bump and the inner wall of the cavity opening are welded by friction stir welding.
The radiator according to claim 3, wherein the base frame includes a frame body and two fence sections, the cavity, the stepped groove, and the cavity opening are all located on the frame body, the two fence sections are both provided on the side of the frame body near the stepped groove, and the two fence sections are located on opposite sides of the stepped groove.
The radiator according to claim 4, characterized in that two external tabs, spaced apart, are provided on the outer wall of the frame body.
The radiator according to claim 5, characterized in that the frame body, the fence portion, and the external tab are integrally molded to the base frame by die casting.
The radiator according to claim 6, characterized in that a closed seal groove is provided in the frame body, surrounding the cavity.
The radiator according to claim 6, characterized in that the frame body is further provided with a number of locking holes distributed at intervals.
The radiator according to claim 6, characterized in that a protective layer is provided on the surface of the radiator.
A method for manufacturing a radiator according to any one of claims 6 to 9, Step S10 for manufacturing a base frame by die casting, wherein a cavity is opened on one side of the base frame, a stepped groove is opened on the other side, and a cavity opening communicating with the cavity is further opened in the inner bottom wall of the stepped groove, Step S20 is to obtain a heat dissipation member, wherein the heat dissipation member includes a heat transfer plate, heat transfer bumps, and several heat sinks, wherein the heat transfer bumps are located on one side of the heat transfer plate, and each of the heat sinks is located on the other side of the heat transfer plate, Step S30 involves arranging the heat dissipation member on the base frame such that the heat transfer plate fits into the stepped groove and the heat transfer bump penetrates the cavity opening. A method for manufacturing a radiator, comprising step S40, which involves sealing and connecting the outer wall of the heat transfer bump and the inner wall of the cavity opening to obtain a radiator.

Description

This invention relates to the technical field of radiators, and more particularly to radiators and methods for manufacturing the same. A radiator is a type of device specifically designed to help dissipate heat from heat-generating components such as electronic devices. It typically consists of a series of heat sinks arranged vertically or horizontally. These heat sinks increase the surface area in contact with the surrounding air, thereby accelerating the rate of heat transfer from the heat source to the air. The goal of heat sink design is to maximize heat dissipation efficiency while maintaining structural stability, lightness, and convenience. Conventional radiators are mainly manufactured using methods such as aluminum extrusion, die casting, machining, and skiving (also known as skiving radiators). However, as radiator sizes continue to increase, and in order to better adapt to heat-generating components in electronic devices and improve heat dissipation efficiency, radiator structures are becoming more complex, and heat sinks are also becoming increasingly taller. Aluminum extrusion cannot achieve the necessary special structures. With die casting, as radiators become larger, their structural characteristics lead to a significant increase in cost, and the longer heat sinks require increased strength during mold removal, limiting the height of the heat sink. As a result, radiators produced by die casting have relatively low heat dissipation efficiency due to the material, and the die-casting acceptance rate is also relatively low. Machining can machine radiators to the required shape, but processing efficiency decreases, and the cost for mass production increases. Skiving can achieve high heat dissipation efficiency, but it cannot be used for components with complex structures. In light of this, the radiator and its manufacturing method described in this application have been proposed to solve the above-mentioned problems. To more clearly explain the technical solutions of the embodiments of the present invention, the drawings necessary for the embodiments will be briefly described below. However, these drawings are merely illustrations of some embodiments of the present invention and should not be considered limiting in scope. Those skilled in the art should understand that other relevant drawings can be obtained based on these drawings without expending any creative effort. This is a schematic diagram of the structure of a radiator according to one embodiment of the present invention. Figure 1 is an exploded view of the radiator. Figure 1 is an exploded view of the radiator from a different angle. Figure 1 is a schematic diagram of the cross-sectional structure of the radiator. Figure 1 is a flow block diagram of the manufacturing method for the radiator shown. To facilitate understanding of the present invention, the invention will be described in more detail below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. Furthermore, in the description of the embodiments of the present invention, the directions or positional relationships indicated by terms such as "length," "width," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are based on the directions or positional relationships shown in the drawings. These terms are intended to facilitate and simplify the explanation of the embodiments of the present invention, and do not indicate or imply that the shown devices or elements have a specific direction, or must be configured and operate in a specific direction. Therefore, they do not limit the present invention. Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying relative importance, or implying the number of technical features described. Therefore, features limited by "first" and "second" may explicitly or implicitly include one or more of those features. In the description of embodiments of the present invention, "multiple" means two or more unless otherwise explicitly specified. In embodiments of the present invention, unless explicitly defined and limited, terms such as "attach," "connect," "join," and "fix" should be understood in a broad sense. For example, these may include fixed connections, detachable connections, mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, internal communication between two elements, or interaction relationships between two elements. The specific meanings of these terms in embodiments of the present invention can be understood by those skilled in the art depending on the context. As shown in Figures 1 to 4, the radiator 10 includes a base frame 100 and a heat dissipation member 200. A cavity 111 for housing the heat dissipation member is opened on one side of the base frame 100, and a stepp