TWI838858B - Blade positioning structure of rotor frame - Google Patents

Abstract

A fan blade positioning structure for a rotor frame is provided with a fan assembly at both ends of the rotor, and the fan assembly is fixedly mounted on both end surfaces of the rotor by a ring seat plate, and the fan assembly is formed with a plurality of fan blades outwardly from the surface of the ring seat plate, wherein the ring seat plate of the fan assembly is formed with a plurality of embedded parts on one side surface of a silicon steel sheet assembly corresponding to the ring seat plate, and the two side end surfaces of the silicon steel sheet assembly are respectively formed with a plurality of embedded slots corresponding to each embedded part, thereby, the fan assembly can be stably fixed on both ends of the silicon steel sheet assembly, so that the fan assembly has a high bonding strength and can effectively resist wind resistance, so that the height and area of the fan blades can be further increased, so that it can generate a larger airflow to enhance the heat dissipation effect.

Description

Blade positioning structure of rotor frame

The present invention belongs to the technical field of a motor rotor, and in particular refers to a blade positioning structure of a rotor frame that can improve the strength of the blade structure.

According to the invention, a motor is a device that uses electromagnetic induction to convert electrical energy into kinetic energy. Its core components include a stator and a rotor that can rotate at relatively high speeds. In the process of converting electrical energy into kinetic energy, electric current will be conducted in the coil windings of the stator to generate an electric current magnetic effect to drive the rotor of the motor to rotate at high speed. The existing rotor is composed of a rotor frame and a core disposed in the rotor frame, wherein the rotor frame is shown in Figures 1 and 2. The rotor frame (10) includes a plurality of connecting posts (11) and end rings (15) disposed at both ends of the connecting posts (11), and the end rings (15) on both sides have a plurality of blades (16). Thus, when the rotor rotates at high speed, the blades (16) on the rotor frame (10) will rotate around the axis, thereby pushing the gas between the two blades (16) outward to generate centrifugal airflow.

However, the end rings (15) on both sides of the rotor frame (10) and the connecting posts (11) are made of different materials, so they need to be fixed at the two ends of the connecting posts (11) by ultrasound. When the motor runs at high speed, the current will cause the rotor to generate high heat, and the airflow needs to be disturbed by the blades (16) on the end rings (15) to be discharged. Once the heat dissipation effect is not good, it is very likely that the different material combination of the end rings (15) and the connecting posts (11) will deteriorate or even peel off due to long-term high temperature, resulting in the loss of the heat dissipation effect of the rotor. The height of the blades (16) of the existing rotor is also subject to considerable restrictions due to wind resistance considerations, which in turn affects its heat dissipation effect. Furthermore, its overall weight is heavier, which will increase the load on the rotor during operation, thus affecting the efficiency of the rotor operation.

In other words, the existing rotor has an imperfect fixing design of the end ring (15) of the blade (16), and generally has a poor stability problem, which causes the problem of being unable to effectively improve the heat dissipation effect. There is indeed a need for further improvement, which is also the topic that the present invention intends to explore.

Due to the above shortcomings and needs, the inventor has used his many years of experience in related technologies and product design and manufacturing to research and invent the above shortcomings and needs, and actively seek solutions. After continuous efforts in research and trial production, he finally successfully developed a blade positioning structure for the rotor frame to overcome the existing problems and troubles caused by poor gas flow.

The main purpose of the present invention is to provide a blade positioning structure for the rotor frame, so as to improve the bonding strength of the fan assembly and prevent the fan assembly from being detached at will and affecting the heat dissipation effect.

Another main purpose of the present invention is to provide a blade positioning structure for a rotor frame, which can increase the force of the fan assembly to drive the airflow, while further reducing the load of the rotor operation, so as to effectively improve its rotation efficiency.

To this end, the present invention mainly realizes the above-mentioned purpose and performance through the following technical means, which are respectively provided with a fan assembly at the two ends of a rotor, and each fan assembly is respectively fixed to the end surface of the rotor by a ring seat plate, and each fan assembly is respectively formed with a plurality of blades on the surface of the ring seat plate outward; the rotor is composed of a silicon steel sheet assembly in which a plurality of silicon steel sheets are stacked and bonded, and each fan assembly is Made of aluminum, each of the fan blades has an inner end face corresponding to the inner diameter of the ring seat and an outer end face corresponding to the outer diameter of the ring seat. The ring seat has a plurality of embedded parts formed on one side surface corresponding to the silicon steel sheet set, and the two side end faces of the silicon steel sheet set have a plurality of embedded slots corresponding to the embedded parts, so that each of the fan sets can be embedded in the embedded slots of the silicon steel sheet set using the embedded parts of the ring seat.

Through the concrete implementation of the aforementioned technical means, the fan blade positioning structure of the rotor frame of the present invention can utilize the design that the embedded parts on the ring seat plates of the fan groups at both ends can be embedded in the embedded slots of the silicon steel sheet group, so that the fan groups can be firmly fixed at both ends of the silicon steel sheet group without peeling off or falling off due to high temperature or other external factors, so that it can effectively ensure its heat dissipation effect. Moreover, since the fan groups have high bonding strength and can effectively resist wind resistance, the fan groups at both ends can further increase the height area of the fan blades, so that it can generate a larger airflow to enhance its heat dissipation effect, and further improve its added value and economic benefits.

The present invention also utilizes the following technical means to further achieve the aforementioned purpose and effect; including: the number and position of the embedded parts of the ring seat of each fan assembly corresponds to the number and position of each fan blade.

The height of the fan blades of each fan assembly is at least five times the height of the embedded portion.

The ring seat has an inner ring edge corresponding to the shaft hole of the silicon steel plate group and an outer ring edge corresponding to the outer diameter of the rotor, and the inner and outer ring edges of the ring seat are respectively formed in arc shape.

The thickness of the ring seat does not exceed one quarter of the height of the blades.

The inner ring edge of the ring seat is inwardly contracted relative to the inner end surface of each blade, and the width of the ring seat does not exceed three quarters of the width of each blade.

The outer diameter of the outer ring edge of the ring seat is smaller than the outer diameter of the rotor.

The outer edge of the ring seat is flush with the outer end surfaces of the fan blades.

In order to enable the Honorable Review Committee to further understand the structure, features and other purposes of the present invention, several preferred embodiments are given below, and detailed descriptions are provided with accompanying drawings, so that those familiar with the technical field can implement them in detail.

10: Rotor frame

11: Connecting column

15: End ring

16: Leaves

50: Rotor

51: Silicon steel sheet set

510: slot

52: Axle hole

54: Fan set

55: Ring seat piece

551: Inner Ring

552: Outer Ring Edge

56: Fan blades

561: Inner end face

562: External end face

57: Card embedding part

Figure 1: A schematic diagram of the appearance of the existing rotor frame.

Figure 2: A top view of the existing rotor frame.

Figure 3: A three-dimensional schematic diagram of the present invention.

Figure 4: is a three-dimensional exploded schematic diagram of the present invention, used to illustrate its components and their relative relationships.

Figure 5: is a top view schematic diagram of a preferred embodiment of the present invention.

Figure 6: is a schematic side view of a preferred embodiment of the present invention.

Figure 7: is a partial cross-sectional schematic diagram of a preferred embodiment of the present invention.

The present invention is a blade positioning structure of a rotor frame. The attached drawings illustrate the specific embodiments of the present invention and its components. All references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are only used for the convenience of description and do not limit the present invention or its components to any position or spatial direction. The dimensions specified in the drawings and the specification can be changed according to the design and requirements of the specific embodiments of the present invention without departing from the scope of the patent application of the present invention, so the patent application is not limited by this structure.

The detailed structure of the preferred embodiment of the blade positioning structure of the rotor frame of the present invention is shown in FIG3. The rotor (50) is composed of a silicon steel sheet group (51) formed by stacking a plurality of silicon steel sheets, and a through-hole (52) is formed in the center of the silicon steel sheet group (51) for assembling a rotating shaft of a motor or a generator (not shown in the figure). A fan assembly (54) is provided at each end of the silicon steel sheet assembly (51). Each fan assembly (54) is fixed to the outermost silicon steel sheet surface at both ends of the silicon steel sheet assembly (51) by a ring seat sheet (55), and each fan assembly (54) is formed with a plurality of blades (56) on the surface of the ring seat sheet (55) facing outward. The characteristic of the present invention is that As shown in FIG. 3, FIG. 4 and FIG. 5, the fan assembly (54) at both ends of the rotor (50) is made of aluminum, and the thickness of the ring seat (55) of each fan assembly (54) does not exceed one-fourth of the height of its blade (56), and the ring seat (55) has an inner ring edge (551) corresponding to the shaft hole (52) of the silicon steel sheet assembly (51) and a The outer ring edge (552) corresponds to the outer diameter of the rotor (50), wherein the outer ring edge (552) of the ring seat (55) has an outer diameter smaller than the outer diameter of the silicon steel sheet set (51), and the inner and outer ring edges (551, 552) of the ring seat (55) are respectively formed in an arc shape to reduce the weight of each fan set (54) and allow the airflow to flow smoothly.

Referring to FIGS. 6 and 7 , each of the blades (56) has an inner end face (561) corresponding to the inner ring edge (551) of the ring seat (55) and an outer end face (562) corresponding to the outer ring edge (552) of the ring seat (55), wherein the outer ring edge (552) of the ring seat (55) is flush with the outer end face (562) of each of the blades (56), and the inner ring edge (551) of the ring seat (55) is in a contracted shape, so that The inner diameter of the inner ring edge (551) of the ring seat (55) is larger than the inner diameter of the space enclosed by the inner end surface (561) of each of the blades (56), so that the width (L1) of the ring seat (55) is smaller than the width (L2) of the blades (56), and the width (L1) of the ring seat (55) of each of the fan assemblies (54) does not exceed three quarters of the width (L2) of each of the blades (56), so as to reduce the volume of the ring seat (55).

In addition, the ring seat pieces (55) of the fan assemblies (54) on both sides are respectively formed with a plurality of embedded parts (57) on the surface corresponding to one side of the silicon steel sheet assembly (51). The embedded parts (57) of the present invention are mainly implemented in accordance with the number and position corresponding to each fan blade (56). Furthermore, the end surfaces on both sides of the silicon steel sheet assembly (51) are respectively formed with a plurality of embedded slots (510), and each of the embedded slots (510) corresponds to each embedded part (57) of the fan assembly (54), so that the fan assembly (54) can utilize the embedded part (57) of the ring seat piece (55) to ) is embedded in the embedding slot (510) of the silicon steel sheet assembly (51) (as shown in Figure 6), so that the fan assembly (54) at both ends can be firmly fixed at both ends of the silicon steel sheet assembly (51), and at the same time, the height of each fan blade (56) can be further increased, wherein the height of each fan blade (56) can be at least five times the height of the embedding portion (57), so as to increase the area of the airflow driven by the fan blade (56), thereby improving its heat dissipation effect; thereby, a fan blade positioning structure of the rotor frame is formed that can reduce weight and improve heat dissipation effect.

Through the above-mentioned structural design, when the present invention is actually applied, as shown in FIG. 3 to FIG. 6, when the rotor (50) rotates at a high speed, the protruding blades (56) of the fan assembly (54) at both ends of the rotor (50) will generate disturbance to generate airflow, and because the fan assembly (54) at both ends can be embedded in the embedding slot (510) of the silicon steel sheet assembly (51) by using the embedding portion (57) of the ring seat sheet (55), each fan assembly (54) It can be firmly fixed on both ends of the silicon steel sheet group (51) to prevent it from peeling off or even falling off due to high temperature or other external factors, so as to ensure its heat dissipation effect. And due to the high strength of the combination, it can effectively resist wind resistance. Therefore, the fan group (54) at both ends can further increase the height area of each fan blade (56), so that it can generate a larger airflow to enhance its heat dissipation effect. In addition, it can effectively reduce the weight, thus reducing the operating energy consumption and improving its rotation efficiency.

As can be seen from the above structure and operation description, the present invention utilizes the design that the fan assembly (54) at both ends of the rotor (50) can be embedded in the embedding slot (510) of the silicon steel sheet assembly (51) through the embedding portion (57) of the ring seat sheet (55), so that each fan assembly (54) can be stably fixed at both ends of the silicon steel sheet assembly (51), avoiding peeling or even falling off due to high temperature or other external factors as known, and effectively ensuring its heat dissipation effect. , and because the fan assembly (54) has a high bonding strength and can effectively resist wind resistance, the fan assembly (54) at both ends can further increase the height area of the fan blades (56), so that it can generate a larger airflow to enhance its heat dissipation effect. At the same time, the thinned ring seat sheet (55) structure can effectively reduce the weight, thereby reducing the operating energy consumption and improving its rotation efficiency, greatly enhancing its practicality, and having the effect of saving energy and reducing costs.

In summary, it can be understood that this invention is an extremely creative invention. In addition to effectively solving the problems faced by practitioners, it also greatly improves the efficacy. In the same technical field, there is no same or similar product invented or publicly used. At the same time, it has improved efficacy. Therefore, this invention has met the requirements of invention patents regarding "novelty" and "progressiveness", and an invention patent application is filed in accordance with the law.

51: Silicon steel sheet assembly 510: Embedded slot 54: Fan assembly 55: Ring seat 56: Fan blade 551: Inner ring edge 552: Outer ring edge 561: Inner end surface 562: Outer end surface 57: Embedded part

Claims (8)

A fan blade positioning structure for a rotor frame, wherein a fan assembly is provided at each end of a rotor, and each fan assembly is fixed to the rotor end surface by a ring seat plate, and each fan assembly has a plurality of fan blades formed outwardly on the surface of the ring seat plate; the rotor is composed of a silicon steel sheet assembly in which a plurality of silicon steel sheets are stacked and bonded, and each fan assembly is made of aluminum, and each The fan blades each have an inner end surface corresponding to the inner diameter of the ring seat and an outer end surface corresponding to the outer diameter of the ring seat. The ring seat has a plurality of embedded parts formed on one side surface corresponding to the silicon steel sheet set, and the two side end surfaces of the silicon steel sheet set have a plurality of embedded slots corresponding to the embedded parts, so that each fan set can be embedded in the embedded slot of the silicon steel sheet set using the embedded parts of the ring seat. The fan blade positioning structure of the rotor frame as described in claim 1, wherein the number and position of the locking portions of the ring seat of each fan assembly corresponds to the number and position of each fan blade. The fan blade positioning structure of the rotor frame as described in claim 1, wherein the fan blade height of each fan assembly is at least five times the height of the embedded portion. The blade positioning structure of the rotor frame as described in claim 1, wherein the ring seat has an inner ring edge corresponding to the shaft hole of the silicon steel plate group and an outer ring edge corresponding to the outer diameter of the rotor, and the inner and outer ring edges of the ring seat are respectively formed in arc shape. The blade positioning structure of the rotor frame as described in claim 1, wherein the thickness of the ring seat does not exceed one quarter of the height of the blades. The blade positioning structure of the rotor frame as described in claim 1, wherein the inner ring edge of the ring seat is inwardly contracted relative to the inner end surface of each blade, and the width of the ring seat does not exceed three quarters of the width of each blade. The blade positioning structure of the rotor frame as described in claim 1, wherein the outer diameter of the outer ring edge of the ring seat is smaller than the outer diameter of the rotor. The blade positioning structure of the rotor frame as described in claim 1, wherein the outer ring edge of the ring seat is flush with the outer end surfaces of the blades.

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