Axis shell anti-rotation structure for cooling fan

Abstract

The axis shell anti-rotation structure for the cooling fan comprises a shaft body and a shell, the shaft body is a cylindrical block, the top of the shaft body is a first plane, one side face of the first plane is provided with a straight face, the shell is provided with a through hole matched with the shaft body, and the straight face is provided with a through hole matched with the shaft body. A straight edge is arranged at the position, corresponding to the straight face, of the through hole, and a clamping face is arranged at the position, close to the straight face, of the shaft body. The fan shell is simple in structure, is mounted in a laser welding manner, ensures that the shaft body and the shell do not move relative to each other when the fan runs, that is, the shell does not rotate along the shaft body, and is good in use effect.

Description

Technical Field

[0001] The invention relates to the field of heat dissipation fans, and in particular to an anti-rotation structure of an axis shell for a heat dissipation fan. Background Art

[0002] With the development trend of electronic products becoming lighter, thinner and more high-performance, the heat generated by their electronic components is gradually increasing. In order to avoid excessive heat affecting the product experience, the demand for cooling fans is also increasing. When the cooling fan is running, the axis position and the shell are relatively static, but due to the increase in usage time, sliding and relative movement are prone to occur, affecting the normal use of the subsequent cooling fan. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an anti-rotation structure for the shaft shell of a cooling fan. The structure is simple and is installed by laser welding. It ensures that the shaft and the shell will not move relative to each other when the fan is running, that is, the shell will not rotate along the shaft, and the use effect is good.

[0004] In order to solve the above technical problems, the present invention provides an anti-rotation structure of an axis shell for a cooling fan, comprising an axis body and a shell, wherein the axis body is a cylindrical block, the top of the axis body is a first plane, one of the side surfaces of the first plane is provided with a straight surface, the shell is provided with a through hole adapted to the axis body, the through hole is provided with a straight edge at a position corresponding to the straight surface, and a locking surface is provided on the axis body near the straight surface.

[0005] Furthermore, the shaft and the shell are processed by laser welding or pressing.

[0006] Furthermore, an arc-shaped surface is provided at a position where the circumferential side of the first plane contacts the shaft body.

[0007] Furthermore, the top portion of the shaft body protrudes from the shell.

[0008] Furthermore, the locking surface contacts the bottom plane of the shell.

[0009] Beneficial effects of the present invention: When the device is in use, since the shaft part passes through the shell, and the straight surface of the shaft corresponds to the straight edge of the shell, after the adaptation is completed, the locking surface on the shaft contacts the plane at the bottom of the shell to achieve locking, so the shaft and the shell will be relatively still and will not move, and only need to be replaced when the shaft or the shell body is damaged, so the service life is longer and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0011] Figure 2It is a schematic diagram of the structure of the shaft body part of the present invention.

[0012] Figure 3 It is a schematic diagram of the shell structure of the present invention.

[0013] Explanation of the numbers in the figure: 1, shaft body; 11, first plane; 12, straight surface; 13, positioning surface; 14, arc surface; 2, shell; 21, through hole; 22, straight edge. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0017] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0020] Reference Figures 1 to 3 As shown, an embodiment of an anti-rotation structure of an axis shell for a cooling fan of the present invention comprises an axis body 1 and a shell 2, wherein the axis body 1 is a cylindrical block, the top of the axis body 1 is a first plane 11, one of the side surfaces of the first plane 11 is provided with a straight surface 12, the shell 2 is provided with a through hole 21 adapted to the axis body 1, the through hole 21 is provided with a straight edge 22 at a position corresponding to the straight surface 12, a positioning surface 13 is provided on the axis body 1 near the straight surface 12, and the processing method adopted for the axis body 1 and the shell 2 is radium welding or pressing; an arcuate surface 14 is provided at a position where the first plane 11 contacts the axis body 1, the top part of the axis body 1 protrudes from the shell 2, and the positioning surface 13 contacts the bottom plane of the shell 2.

[0021] When in use, since the shaft body 1 partially passes through the shell 2, and the straight surface 12 of the shaft body 1 corresponds to the straight edge 22 of the shell 2, after the adaptation is completed, the locking surface 13 on the shaft body 1 contacts the plane at the bottom of the shell 2 to achieve locking, so the shaft body 1 and the shell 2 will be relatively still and will not move, and only need to be replaced when the shaft body 1 or the main body of the shell 2 is damaged, so it has a longer service life and a better use effect.

[0022] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. An anti-rotation structure of an axis housing for a heat dissipation fan, characterized in that: The invention comprises a shaft body (1) and a shell (2), wherein the shaft body (1) is a cylindrical block, the top of the shaft body (1) is a first plane (11), one side surface of the first plane (11) is provided with a straight surface (12), the shell (2) is provided with a through hole (21) adapted to the shaft body (1), a straight edge (22) is provided at a position of the through hole (21) corresponding to the straight surface (12), and a locking surface (13) is provided at a position of the shaft body (1) close to the straight surface (12).

2. The anti-rotation structure of the shaft housing for the heat dissipation fan according to claim 1, characterized in that: The shaft (1) and the housing (2) are processed by laser welding or pressing.

3. The anti-rotation structure of the shaft housing for the heat dissipation fan according to claim 1, characterized in that: An arc-shaped surface (14) is provided at a position on the circumferential side of the first plane (11) in contact with the shaft body (1).

4. The anti-rotation structure of the shaft housing for the heat dissipation fan according to claim 1, characterized in that: The top portion of the shaft body (1) protrudes from the housing (2).

5. The anti-rotation structure of the shaft housing for the heat dissipation fan according to claim 1, characterized in that: The locking surface (13) contacts the bottom plane of the housing (2).

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