CN217898000U - Heat dissipation impeller with high heat dissipation performance - Google Patents

Abstract

The utility model discloses a heat dissipation impeller with high heat dissipation performance, which comprises a blade disc and a plurality of blades fixed on the blade disc, wherein each blade consists of an inner straight line plate and an outer arched plate, the included angle between the tangent line of the inner straight line plate and the tangent line of the outer arched plate of each blade is 125-130 degrees, and the distance between every two adjacent blades is gradually increased from inside to outside; a plurality of air inlet holes are formed in the blade disc at intervals in the circumferential direction, and the air inlet holes are located in the middle of the blade disc and correspond to the inner linear plates.

Description

Heat dissipation impeller with high heat dissipation performance

Technical Field

The utility model relates to an engine field, concretely relates to heat dissipation impeller with high heat dissipating ability.

Background

The generator set comprises an engine and a generator, the generator is arranged on one side of the engine and comprises a stator and an outer rotor, and the outer rotor of the generator is of a shell type structure; an impeller is arranged between the outer rotor of the generator and the engine and is arranged on the rotor through a fastener. When the motor runs, the motor is used as a power system to drive the rotor to rotate in the stator to cut magnetic lines of force to generate current.

Generator and engine operation environment mainly are under high temperature weather, under the unchangeable circumstances of installation environment, only dispel the heat through introducing outside cold air to the rotor, and the radiating effect is not good, and simultaneously, produced heat dissipation amount of wind is not enough when current impeller is rotatory, and the heat that the rotor produced when the operation leads to the heat to pile up inside outside unable in time discharging power to power also seriously descends. And the generator is in a high-temperature severe environment for a long time, and the service life of parts is reduced sharply.

Disclosure of Invention

Not enough to the above-mentioned that prior art exists, the utility model aims to provide a heat dissipation impeller with high heat dissipating ability solves the current not good enough problem of impeller radiating effect.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a heat dissipation impeller with high heat dissipation performance comprises a blade disc and a plurality of blades fixed on the blade disc, wherein each blade consists of an inner straight line plate and an outer arched plate, the included angle between the inner straight line plate of each blade and the tangent line of the outer arched plate is 125-130 degrees, and the distance between every two adjacent blades is gradually increased from inside to outside; a plurality of air inlet holes are formed in the blade disc at intervals in the circumferential direction, and the air inlet holes are located in the middle of the blade disc and correspond to the inner linear plates.

Furthermore, the included angle between the tangent of the outer arched plate of each blade and the tangent of the outer circumferential surface of the blade disc is 52-58 degrees, and the curved surface radius r of the tangent of the outer arched plate is 0.15 times of the circumferential diameter of the blade disc.

Furthermore, the blades are divided into two groups by taking the blade disc as the center, and the included angle between the extension lines of two adjacent inner linear plates in each group of blades is gradually increased from one side to the other side.

Further, the longitudinal height of the inner straight line plate is gradually reduced from outside to inside.

Furthermore, an annular top plate is arranged on the opposite side of the blade disc, the circle centers of the annular top plate and the blade disc are positioned on the same axis, and the annular top plate is fixedly connected with the outer arched plate of the blade.

Furthermore, the outer sides of the outer arched plates of all the blades extend out of the blade disc, and the outer diameter of the annular top plate is equal to that of the blades.

Furthermore, a plurality of mounting holes for fixing the impeller are formed in the middle of the blade disc.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the blades of the impeller are composed of inner straight line plates and outer arched plates, and the distance between two adjacent blades is increased from inside to outside, so that when the blade disc rotates, a certain air pressure difference is generated, external cold air is sucked in, flows to a rotor and a stator of the generator through the air inlet hole, finally passes through the engine cylinder body, and is discharged through a silencer on the engine, and the purpose of rapid heat dissipation is achieved.

2. A certain included angle is formed between the tangent line of the inner straight line plate and the tangent line of the outer arched plate, so that an eddy current is formed when the airflow passes through the outer arched plate and then enters the inner straight line plate and the air inlet, the cold air introduction speed is effectively increased, and the customized heat is ensured to be rapidly led out and taken away from the engine heat.

3. The blade uses the bladed disk to divide into two sets ofly as the center, and the contained angle between the two adjacent interior sharp board extension lines in each group blade is by a side opposite side crescent for every group blade divide into high blade district and low density blade district, forms the atmospheric pressure difference between high density district and the low density district, makes the velocity of flow of inhaled air accelerate, and vortex combined action effectively increases cold air induction speed in coordination, ensures that the hot-air derives the generator fast.

Drawings

FIG. 1 is a front view of a heat dissipating impeller according to an embodiment;

FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 4 is a rear view of the heat dissipating impeller in the embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance. Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 to 4, the heat dissipation impeller with high heat dissipation performance provided by this embodiment includes a blade disc 1 and a plurality of blades 2 vertically fixed on the blade disc 1, each blade 2 is composed of an inner straight plate 21 and an outer arched plate 22, an included angle between tangents of the inner straight plate 21 and the outer arched plate 22 of each blade 2 is 125 to 130 °, and a distance between each two adjacent blades 2 gradually increases from inside to outside; a plurality of air inlet holes 11 are formed in the blade disc 1 at intervals in the circumferential direction, and the air inlet holes 11 are located in the middle of the blade disc 1 and correspond to the inner linear plates. When the blade disc rotates, a certain air pressure difference is generated, so that cold air outside the generator is sucked into the generator, flows to power and is led to the stator through the air inlet hole 11 to take away heat, and the purpose of rapid heat dissipation is achieved.

An included angle alpha between the tangent of the outer arched plate 22 of each blade 2 and the tangent of the outer circumferential surface of the blade disc is 52-58 degrees, and the curved surface radius r of the tangent of the outer arched plate is 0.15 times of the circumferential diameter of the blade disc. The outer arched plate of the blade with the structure has a large angle, can do work to the maximum extent, has large air volume after rotation, and can distribute the external force on the blade disc after the outer arched plate is stressed, thereby effectively increasing the strength of the blade and avoiding the deformation of the blade after long-term use.

As shown in fig. 2, the blades 2 in this embodiment are divided into two groups by taking the blade disc 1 as a center, and an included angle between extension lines of two adjacent inner linear plates in each group of blades is gradually increased from one side to the other side, so that each group of blades is divided into a high-density blade area and a low-density blade area, and an air pressure difference is formed between the high-density blade area and the low-density blade area, so that the flow velocity of the sucked air is increased, and the cold air introduction speed is effectively increased by the cooperation of the vortex flow, and the hot air is ensured to be rapidly led out. In the present embodiment, in the two sets of blades 2, the high-density blade region of one set of blades is disposed adjacent to the low-density blade region of the other set of blades.

After the impeller is installed, in order to avoid the interference between the impeller and a starter in the starter cover, the longitudinal height of the inner linear plate is gradually reduced from outside to inside.

An annular top plate 3 is further arranged on the opposite side of the blade disc, the circle centers of the annular top plate 3 and the blade disc 1 are located on the same axis, and the annular top plate 3 is fixedly connected with an outer arched plate 22 of the blade 2.

The middle of the blade disc 1 is provided with a plurality of mounting holes 12 and mounting convex columns 13 for fixing the impeller, during mounting, the blade disc is fixed on a rotor after a fastener penetrates through the mounting holes and the mounting convex columns, the air inlet hole 11 corresponds to the rotor of the generator, a starter and a starting cover are arranged outside the rotor, after the impeller rotates, the wind direction formed by the blades is consistent with the flow guide direction of the starting cover, the air pressure difference can be effectively increased, and the purpose of quick flow guide is achieved.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims (7)

1. A heat dissipation impeller with high heat dissipation performance comprises a blade disc and a plurality of blades fixed on the blade disc, and is characterized in that each blade consists of an inner straight line plate and an outer arched plate, the included angle between the inner straight line plate of each blade and the tangent line of the outer arched plate is 125-130 degrees, and the distance between every two adjacent blades is gradually increased from inside to outside; a plurality of air inlet holes are formed in the blade disc at intervals in the circumferential direction, and the air inlet holes are located in the middle of the blade disc and correspond to the inner linear plates.

2. The heat-dissipating impeller with high heat dissipation performance as claimed in claim 1, wherein an angle between a tangent of the outer dome of each blade and a tangent of the outer circumferential surface of the disk is 52 to 58 °, and a radius r of a curved surface of the tangent of the outer dome is 0.15 times a diameter of the circumferential surface of the disk.

3. The impeller for dissipating heat with high heat dissipation performance as claimed in claim 1 or 2, wherein the blades are divided into two groups centering on the impeller disc, and the included angle between the extension lines of two adjacent inner linear plates in each group of blades is gradually increased from one side to the other side.

4. The impeller for dissipating heat with high heat dissipation as claimed in claim 3, wherein the inner linear plate has a height gradually decreasing from the outside to the inside in a longitudinal direction.

5. The impeller with high heat dissipation performance as claimed in claim 1, 2 or 4, wherein an annular top plate is further provided at an opposite side of the bladed disk, the annular top plate is located on the same axis as the center of the bladed disk, and the annular top plate is fixedly connected to the outer arched plate of the blade.

6. The impeller with high heat dissipation performance as claimed in claim 5, wherein the outer sides of the outer arched plates of all the blades extend out of the impeller disc, and the outer diameter of the annular top plate is equal to the outer diameter of the blades.

7. The heat-dissipating impeller with high heat dissipation performance as claimed in claim 5, wherein a plurality of mounting holes for fixing the impeller are formed in the center of the impeller disk.

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