A stable engine fan structure

Abstract

The utility model discloses a stable engine fan structure, including a hardware and a plastic part with which it is injected, wherein the edge of the hardware is provided with a plurality of notches arranged in an annular manner; the surface of the hardware is provided with convex ribs and convex ribs 2 which are symmetrical up and down; the surface of the hardware is provided with a plurality of plastic holes; the plastic part includes fan blades and notch edges; the notch and the notch edge form a sealing position after injection molding, the convex ribs and convex ribs 2 form a convex rib sealing position after injection molding, and the plastic holes form injection-molded plastic holes after injection molding. The utility model adds more than one hundred small holes on the large-area plane in contact with the plastic of the hardware in the existing engine fan, and these more than one hundred small holes of the hardware can be filled with plastic during injection molding, so that the hardware and the plastic parts can be bonded more firmly.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engines, in particular to a stable engine fan structure. Background Art

[0002] The automobile engine is a device that provides power for the automobile. It is the heart of the automobile and determines the power, economy, stability and environmental protection of the automobile. Most automobile engines are thermal power devices, referred to as thermal engines. Thermal engines convert the heat energy generated by fuel combustion into mechanical energy by means of the state change of the working fluid.

[0003] A large amount of heat energy is generated during the operation of the engine, and the engine needs to be cooled to ensure that the temperature is controlled within the safe operating range of the engine. The engine fan mechanism plays a vital role. The engine fan mechanism is an important part of the automobile cooling system. The performance of the fan directly affects the heat dissipation effect of the engine, and then affects the performance of the engine. If the engine fan works unstably, it will lead to insufficient or excessive cooling of the engine, causing the engine working environment to deteriorate and shortening the life of the engine.

[0004] As an important part of the engine, the engine fan needs to have good stability, so it is necessary to continuously improve the structure of the engine fan to ensure that the engine fan does not fluctuate beyond the standard when working to avoid adverse effects. The existing engine fan structure has defects such as unstable operation.

[0005] To this end, a stable engine fan structure is proposed. Summary of the invention

[0006] The purpose of the utility model is to provide a stable engine fan structure to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A stable engine fan structure includes a hardware part and a plastic part injected with the hardware part, wherein the edge of the hardware part is provided with a plurality of annularly arranged notches;

[0009] The surface of the hardware is provided with convex ribs and convex ribs 2 which are symmetrical up and down;

[0010] The surface of the hardware is provided with a plurality of plastic holes;

[0011] The plastic part includes fan blades and notch edges;

[0012] The notch and the notch edge form a sealing position after injection molding, the convex rib and convex rib two form a convex rib sealing position after injection molding, and the plastic hole forms an injection-molded plastic hole after injection molding.

[0013] Furthermore, the first convex rib and the second convex rib are in an arc shape.

[0014] Furthermore, the first convex rib and the second convex rib are provided with a plurality of small holes.

[0015] Furthermore, the hardware is provided with a plurality of positioning holes and positioning holes 2.

[0016] Furthermore, the hardware is provided with a plurality of protrusions.

[0017] Furthermore, the hardware is provided with a convex bump.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) Add more than 100 small holes on the large surface where the hardware in the existing engine fan contacts the plastic. These more than 100 small holes in the hardware can be filled with plastic during injection molding, making the hardware and plastic parts more firmly bonded;

[0020] (2) The hardware and plastic clips in the existing engine fan are replaced with large arc rib structures on both sides. The rib structure is stable and has multiple small holes on it, which can be filled with plastic during injection molding. This makes the hardware and plastic parts more firmly bonded without the risk of microcracks. At the same time, the dynamic balance of the engine fan is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the hardware structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the plastic component structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure after injection molding of the utility model. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example

[0025] See also Figure 1-2 , the utility model provides a technical solution:

[0026] A stable engine fan structure includes a hardware part and a plastic part injection molded therewith, wherein a plurality of annular notches 41 are arranged at the edge of the hardware part, and a convex rib 42 and a second convex rib 43 are symmetrically arranged on the surface of the hardware part, and a plurality of plastic holes 48 are opened on the surface of the hardware part, wherein the plastic part includes a fan blade 52 and a notch edge 51, so that the notch 41 and the notch edge 51 form a sealing position 61 after injection molding, so that the convex rib 42 and the second convex rib 43 form a convex rib sealing position 62 after injection molding, and the plastic hole 48 forms an injection-molded plastic hole 63 after injection molding.

[0027] The convex rib 42 and the second convex rib 43 are arc-shaped, making the structure more stable.

[0028] The hardware is provided with a plurality of positioning holes 44 and a second positioning hole 45, the hardware is provided with a plurality of convex points 46, the hardware is provided with a convex bump 47, the convex rib 42 and the second convex rib 43 are provided with a plurality of small holes, and the injection molding can be filled with plastic to make the hardware and the plastic parts bond more tightly without generating cracks, so that the dynamic balance of the engine fan is stable and reliable.

[0029] Injection molding of hardware and plastic parts ( Figure 1-2 ), becomes the structure of the engine fan after injection molding ( Figure 3 The junction of the notch 41, the convex rib 42, the second convex rib 43, and the plastic hole 48 is tightly and stably bonded together with the plastic part by injection molding to ensure the stability of the fan structure.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable engine fan structure, comprising a hardware part and a plastic part injection molded therewith, characterized in that: The edge of the hardware is provided with a plurality of notches (41) arranged in an annular manner; The surface of the hardware is provided with a convex rib (42) and a second convex rib (43) which are symmetrical in both directions. The surface of the hardware is provided with a plurality of plastic holes (48); The plastic part includes a fan blade (52) and a notch edge (51); The notch (41) and the notch edge (51) are formed into a sealing position (61) after injection molding, the convex rib (42) and the second convex rib (43) are formed into a convex rib sealing position (62) after injection molding, and the plastic injection hole (48) is formed into a plastic injection hole (63) after injection molding.

2. A stable engine fan structure according to claim 1, characterized in that: The convex rib (42) and the second convex rib (43) are in an arc shape.

3. A stable engine fan structure according to claim 1, characterized in that: The convex rib (42) and the second convex rib (43) are provided with a plurality of small holes.

4. A stable engine fan structure according to claim 1, characterized in that: The hardware is provided with a plurality of positioning holes (44) and a second positioning hole (45).

5. A stable engine fan structure according to claim 1, characterized in that: The hardware is provided with a plurality of convex points (46).

6. A stable engine fan structure according to claim 1, characterized in that: The hardware is provided with a convex bump (47).

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