一种具有散热结构的汽车水泵轴

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By designing a cavity and multiple channels inside the automotive water pump shaft, the problem of overheating of the water pump shaft was solved, achieving effective heat dissipation and improving mechanical performance and lifespan.

CN224515453UActive Publication Date: 2026-07-17WUXI DESHEN PRECISION ENG CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: WUXI DESHEN PRECISION ENG CO LTD
Filing Date: 2025-05-12
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

The existing automotive water pump shaft lacks a heat dissipation structure, which makes it prone to overheating during use, affecting its mechanical performance and lifespan.

Method used

A car water pump shaft with a heat dissipation structure was designed. The shaft has a cavity inside and mounting grooves are opened through the top and bottom surfaces of the shaft. An extended shaft passes through the mounting grooves. Through holes are opened through the side walls and top surface of the shaft to form multiple channels for heat dissipation.

Benefits of technology

Effective heat dissipation ensures the continuous working performance of the water pump shaft and extends its service life.

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Abstract

本实用新型适用于汽车水泵轴技术领域，提供了一种具有散热结构的汽车水泵轴，包括连接轴，所述连接轴的内部设有空腔，所述连接轴的顶面和底面对称贯通开设有安装槽，所述安装槽的内部穿设有外伸轴，所述连接轴的顶面贯通开设有第一通孔，所述第一通孔与空腔相连通，所述连接轴的侧壁贯通开设有第二通孔，所述第二通孔与空腔相连通；优选的，所述外伸轴的侧壁与安装槽的内壁焊接；优选的，所述外伸轴的两端共同贯通开设有第一通道。本实用新型提供一种具有散热结构的汽车水泵轴，通过第一通孔、第二通孔以及第一通道和第二通道相互配合，对水泵轴进行散热，保证了水泵轴的持续工作性能和寿命。

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Claims

1. An automobile water pump shaft having a heat dissipation structure, characterized by comprising: The device includes a connecting shaft (1), which has a cavity inside. The top and bottom surfaces of the connecting shaft (1) are symmetrically connected by an installation groove (2). An extension shaft (5) passes through the installation groove (2). The top surface of the connecting shaft (1) has a first through hole (3) that is connected to the cavity. The side wall of the connecting shaft (1) has a second through hole (4) that is connected to the cavity.

2. The automobile water pump shaft with heat dissipation structure according to claim 1, characterized in that: The side wall of the extended shaft (5) is welded to the inner wall of the mounting groove (2).

3. The automobile water pump shaft with heat dissipation structure according to claim 1, characterized in that: The two ends of the extended shaft (5) are connected by a first channel (6).

4. The automobile water pump shaft with heat dissipation structure according to claim 1, characterized in that: The cavity is provided with a connecting pipe (7), and a second channel (8) is provided through the inside of the connecting pipe (7), which is connected to the first channel (6).

5. The automobile water pump shaft with heat dissipation structure according to claim 4, characterized in that: Both ends of the connecting pipe (7) are threadedly connected to the corresponding first channel (6).

6. The automobile water pump shaft with heat dissipation structure according to claim 4, characterized in that: The connecting tube (7) is fitted with a connecting rod (9) on its outside. The width of the connecting rod (9) is smaller than the width of the cavity. The two ends of the connecting rod (9) are fixedly connected to the inner wall of the cavity.