Pressing plate structure and motor

Abstract

The utility model belongs to the technical field of motors, and provides a pressing plate structure and a motor, and the pressing plate structure comprises a pressing plate. The circumferential surface of the pressing plate is a guide face, a plurality of guide ribs are arranged on the guide face, and the guide ribs are used for guiding the flowing direction of air when the pressing plate rotates. In the rotating process of the pressing plate, air can smoothly flow to the top along the guide ribs after entering from the bottom of the side plate, so that the air can be effectively guided in the height range of the whole side plate, the air is prevented from being detained or disordered in a local area of the side plate, and the air flowing efficiency and stability are greatly improved; after the motor rotor adopts the pressing plate, air in the air gap can flow along the axial direction and continuously absorb heat generated by friction, so that heat dissipation of the rotor and the stator is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and specifically relates to a pressure plate structure and a motor. Background Technology

[0002] Currently, the rotor pressure plate lacks guide ribs on its sides, preventing axial airflow within the air gap. When the rotor rotates at high speed, it drives the air in the air gap to rotate at high speed as well. During this process, the air generates a large amount of heat due to friction. Because the air cannot flow axially, the small amount of air in the air gap can only continuously absorb this heat generated by friction. This not only hinders heat dissipation for the rotor and stator but also leads to a significant increase in temperature in the air gap, rotor, and the inner surface of the stator, adversely affecting the normal operation of the equipment. Utility Model Content

[0003] To address the problems in the background art, this utility model proposes a pressure plate structure and a motor.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pressure plate structure includes a pressure plate;

[0006] The circumferential surface of the pressure plate is a guide surface;

[0007] Several guide ribs are provided on the guide surface;

[0008] The guide ribs are used to guide the airflow direction when the pressure plate rotates.

[0009] Preferably, the guide surface is inclined relative to the axis of the pressure plate.

[0010] Preferably, along the axial direction of the pressure plate, the guide rib extends from one end of the guide surface to the other end.

[0011] Preferably, the guide rib is projected in a direction perpendicular to the pressure plate, and the projection is a curved strip.

[0012] From the bottom to the top of the guide surface, the inner radius of the curved strip remains constant, while the outer radius gradually increases.

[0013] Preferably, the included angles between any two of the guide ribs and the pressure plate are equal.

[0014] Preferably, the guide ribs are provided in the form of 4 to 12 ribs.

[0015] Preferably, the surface of the pressure plate is treated with anodizing, surface heat treatment, or painting.

[0016] Preferably, the pressure plate has a mounting hole at its center.

[0017] Preferably, the inner surface of the mounting hole is provided with anti-slip texture.

[0018] An electric motor, wherein the rotor end of the electric motor is fitted with the aforementioned pressure plate structure;

[0019] When the pressure plate rotates with the rotor, the guide ribs are used to guide the air to flow along the axial direction of the rotor.

[0020] The beneficial effects of this utility model are:

[0021] 1. During the rotation of the pressure plate of this utility model, after the air enters from the bottom of the side plate, it can flow smoothly to the top along the guide rib, so that the air can be effectively guided throughout the height range of the side plate, avoiding the stagnation or turbulence of air in local areas of the side plate, thereby greatly improving the efficiency and stability of air flow.

[0022] 2. With the use of a pressure plate, the air in the air gap of the motor rotor of this utility model can flow axially and continuously absorb the heat generated by friction, which is beneficial to the heat dissipation of the rotor and stator.

[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of a pressure plate structure according to this utility model is shown;

[0026] Figure 2 It shows Figure 1 The front view;

[0027] Figure 3 It shows Figure 1 Top view;

[0028] Figure 4 A schematic diagram of the structure of the motor mounting plate of this utility model is shown;

[0029] Figure 5 A schematic diagram of the motor without the pressure plate of this utility model is shown.

[0030] In the diagram: 1. Pressure plate; 101. Mounting hole; 102. Guide surface; 103. Guide rib; 2. Rotor; 3. Motor winding; 4. Stator core. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] A pressure plate structure, such as Figure 1 As shown, it includes a pressure plate 1. The pressure plate 1 is a rotating structure, and its circumferential surface is a guide surface 102, with guide ribs 103 evenly arranged on the guide surface 102.

[0033] The main function of the guide rib 103 is to guide the airflow direction when the pressure plate 1 rotates. When the pressure plate 1 rotates, the guide rib 103 changes the airflow path, causing the air to flow in a predetermined direction. Specifically, the pressure plate 1 is circular, the guide surface 102 is annular, and the guide rib 103 guides the air to flow along the axial direction of the pressure plate 1. This axial flow method, when applied to equipment such as motors, can more effectively deliver air to the designated location, improving the equipment's air supply efficiency and heat dissipation effect, and reducing energy loss.

[0034] Furthermore, such as Figure 1 As shown, along the axial direction of the pressure plate 1, the guide rib 103 extends from one end of the guide surface 102 ( Figure 2 The bottom end of the guide surface 102 extends all the way to the other end. Figure 2 (The top of the guide surface 102). This design is highly effective. The guide ribs 103 extend the full height of the guide surface 102, ensuring that during the rotation of the pressure plate 1, air entering from the bottom of the guide surface 102 can flow smoothly to the top along the guide ribs 103. This allows the air to be effectively guided throughout the entire height range of the guide surface 102, avoiding air stagnation or turbulence in local areas of the guide surface 102, thereby significantly improving the efficiency and stability of airflow.

[0035] Furthermore, combined Figure 3As can be seen, when projected along a direction perpendicular to the pressure plate 1, the projection of the guide rib 103 presents a curved strip shape. Furthermore, from the bottom to the top of the guide surface 102, the inner radius of the curved strip remains constant, while the outer radius gradually increases. This shape design has excellent aerodynamic effects. As the pressure plate 1 rotates, the gradually increasing outer radius allows air to gradually diffuse during flow, increasing the airflow range. Simultaneously, the unchanged inner radius ensures the stability of the basic airflow path, enabling air to flow along the guide rib 103 in an orderly and diffused manner, further optimizing the airflow effect and enhancing the control over the airflow direction.

[0036] Combined Figure 2 As can be seen, the included angles between any two guide ribs 103 and the pressure plate 1 are equal. This design ensures that the air guiding effect of each guide rib 103 is uniform and consistent. When the pressure plate 1 rotates, the air can be evenly distributed around the pressure plate 1 under the guidance of each guide rib 103, avoiding the problem of unbalanced airflow caused by uneven layout of guide ribs 103. This makes the entire pressure plate 1 more stable and efficient in guiding airflow, improving the overall working performance.

[0037] Furthermore, the guide ribs 103 are provided with 4 to 12 ribs, preferably 8 ribs. Multiple guide ribs 103 can form a reasonable and uniform distribution on the outer surface of the guide surface 102. When the pressure plate 1 rotates, a larger number of guide ribs 103 can provide denser guidance for the air, making the airflow guidance more precise and efficient.

[0038] Furthermore, the surface of pressure plate 1 is treated with anodizing, surface heat treatment, or painting. Anodizing forms a dense oxide film on the surface of pressure plate 1, which has excellent corrosion resistance and wear resistance, effectively preventing corrosion and wear in harsh environments and extending its service life. Surface heat treatment alters the surface structure of pressure plate 1, increasing its hardness and strength, enhancing its stability under external forces and high-speed rotation, and ensuring it does not deform during long-term use. Painting not only provides some protection for pressure plate 1 but also allows for the selection of suitable colors to meet different usage requirements, serving a certain identification and decorative function. Through these surface treatments, pressure plate 1 can adapt to more complex working environments, improving its reliability and applicability.

[0039] Furthermore, a mounting hole 101 is provided at the center of the pressure plate 1. The design of the mounting hole 101 facilitates the installation of the pressure plate 1. In practical applications, the pressure plate 1 usually needs to be installed on components such as rotating shafts. The mounting hole 101 allows the pressure plate 1 to be accurately fitted and installed with the rotating shaft, ensuring the concentricity between the pressure plate 1 and the rotating shaft, and guaranteeing the stability of the pressure plate 1 during rotation. This helps to reduce vibration and noise caused by installation deviations, and improves the stability and reliability of the entire equipment operation.

[0040] Furthermore, the inner surface of the mounting hole 101 is provided with anti-slip texture. When the pressure plate 1 is mounted on the rotating shaft, the anti-slip texture increases the friction between the mounting hole 101 and the rotating shaft. During the high-speed rotation of the pressure plate 1, this friction effectively prevents relative sliding between the pressure plate 1 and the rotating shaft, ensuring that the pressure plate 1 can closely follow the rotating shaft, avoiding problems such as decreased work efficiency and equipment damage caused by sliding, and further improving the safety and stability of the pressure plate 1 in practical applications.

[0041] like Figure 4 and Figure 5 As shown, an electric motor has a pressure plate structure installed at the end of its rotor 2. Specifically, the rotation axis of the rotor 2 can pass through the pressure plate 1, so that the entire pressure plate 1 is installed at the end of the rotor 2. Furthermore, the rotor 2 is located inside the stator core 4, and the motor windings 3 are installed in the stator slots of the stator core 4. When the pressure plate 1 rotates with the rotor 2, the guide ribs 103 are used to guide the air to flow along the axial direction of the rotor 2.

[0042] It should be noted that during high-speed rotation, rotor 2 drives the air in the air gap to rotate, thereby generating heat due to friction. If there is no axial flow in the air gap, the small amount of air in the air gap will absorb the heat generated by friction, resulting in a significant increase in temperature in the air gap, rotor 2, and the inner side of the stator. Therefore, after installing the above structure on rotor 2, it can guide the air in the air gap to generate axial flow, allowing the heat generated by friction in the air gap to flow axially through the air gap and then be discharged to the outside of the air gap.

[0043] It needs to be further explained that, in Figure 4 In the middle, the guide rib 103 is thicker on the top surface of the pressure plate 1, and the thickness gradually decreases towards the bottom surface of the pressure plate 1. This can ensure the axial flow guidance effect and also avoid interference with the motor winding 3.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pressure plate structure, characterized in that, Includes pressure plate (1); The pressure plate (1) is a rotating body, and the circumferential surface of the rotating body is a guide surface (102); The guide surface (102) is provided with a plurality of guide ribs (103); The guide rib (103) is used to guide air to flow along the axial direction of the pressure plate (1) when the pressure plate (1) rotates.

2. The pressure plate structure according to claim 1, characterized in that, The guide surface (102) is inclined relative to the axis of the pressure plate (1).

3. The pressure plate structure according to claim 2, characterized in that, Along the axial direction of the pressure plate (1), the guide rib (103) extends from one end of the guide surface (102) to the other end.

4. The pressure plate structure according to claim 3, characterized in that, Projecting along a direction perpendicular to the pressure plate (1), the guide rib (103) is projected as a curved strip; From the bottom to the top of the guide surface (102), the inner radius of the curved strip remains unchanged, while the outer radius gradually increases.

5. A pressure plate structure according to claim 3, characterized in that, The included angles between any two of the guide ribs (103) and the pressure plate (1) are equal.

6. The pressure plate structure according to claim 1, characterized in that, The guide ribs (103) are provided in 4 to 12 sections.

7. A pressure plate structure according to claim 1, characterized in that, The surface of the pressure plate (1) is treated with anodizing, surface heat treatment or spray painting.

8. A pressure plate structure according to any one of claims 1-7, characterized in that, The pressure plate (1) has a mounting hole (101) in the center.

9. A pressure plate structure according to claim 8, characterized in that, The inner surface of the mounting hole (101) is provided with anti-slip texture.

10. An electric motor, characterized in that, The rotor (2) end of the motor is equipped with a pressure plate structure as described in any one of claims 1-9; When the pressure plate (1) rotates with the rotor (2), the guide rib (103) is used to guide the air to flow along the axial direction of the rotor (2).

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