Stepping motor with cooling function

Abstract

The utility model discloses a stepping motor with a cooling function, which comprises a motor shell and a motor output shaft, the motor output shaft is arranged on the motor shell, and heat conduction assemblies are respectively embedded in the side surfaces of the motor shell. The heat conduction assembly and the synchronous rotation flow guide assembly are arranged, the heat conduction assembly rapidly introduces heat generated inside, the heat conduction assembly exchanges heat with outside air, the purpose of first-step heat dissipation is achieved, when the stepping motor rotates fast, the motor output shaft drives the synchronous rotation flow guide assembly to rotate, and the synchronous rotation flow guide assembly rotates fast; the synchronous rotation flow guide assembly rotates to drive the gas to flow rapidly, so that the gas at the position of the heat conduction assembly is accelerated to flow, the purpose of rapid heat exchange is achieved, and the effect of rapid heat dissipation of the stepping motor is achieved. The problem that when an existing sealed stepping motor rotates fast, generated heat is greatly increased, the heat is difficult to dissipate only through a heat exchange mode, and normal use of the stepping motor is affected is solved.

Description

Technical Field

[0001] This utility model relates to the field of stepper motor technology, and in particular to a stepper motor with a cooling function. Background Technology

[0002] A stepper motor is a device that converts electrical pulse signals into precise angular displacement. Stepper motors mainly control the operation of related equipment by rotating in discrete steps, and are therefore widely used in automated manufacturing, medical equipment, and office automation equipment. The core of a stepper motor mainly consists of a stator and a rotor. The rotor is precisely controlled to stop and start by a drive controller, thereby achieving the purpose of stepping operation.

[0003] In stepper motor applications, sealed stepper motors are generally used in harsh environments, and the operating speed varies depending on the actual situation. When the stepper motor rotates slowly, it generates less heat, which can be dissipated through heat exchange. However, when the stepper motor rotates quickly, the heat generated increases significantly, making it difficult to dissipate the heat through heat exchange alone, thus greatly affecting the use of the stepper motor.

[0004] Therefore, how to provide a stepper motor with a cooling function is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a stepper motor with a cooling function. This invention solves the problem that existing sealed stepper motors generate significantly more heat when rotating at high speeds, making it difficult to dissipate the heat through heat exchange alone, thus affecting the normal operation of the stepper motor.

[0006] A stepper motor with cooling function according to an embodiment of the present invention includes a motor housing and a motor output shaft. The motor output shaft is disposed on the motor housing, and heat conduction components are embedded in the sides of the motor housing. A synchronous rotation guide component is disposed on the surface of the motor output shaft.

[0007] The heat-conducting assembly includes a central aluminum heat-conducting plate and side aluminum heat-conducting plates. The central aluminum heat-conducting plate is embedded in the surface of the motor housing, and one end of the central aluminum heat-conducting plate extends into the interior of the motor housing. The side aluminum heat-conducting plates are embedded in the surface of the motor housing near the central aluminum heat-conducting plate, and one end of the side aluminum heat-conducting plates extends into the interior of the motor housing.

[0008] The inner side of the side aluminum heat-conducting plate is provided with a side heat-conducting sheet. The side aluminum heat-conducting plate and the side heat-conducting sheet are provided with a heat-conducting cavity. The heat-conducting cavity communicates with the inside of the motor housing. The side of the central aluminum heat-conducting plate is provided with a central heat-conducting sheet. The central heat-conducting sheet and the side heat-conducting sheets are arranged in parallel, and the central heat-conducting sheet is parallel to the motor housing.

[0009] The central heat-conducting plate is designed in a "corrugated" shape.

[0010] The synchronous rotating flow guide assembly includes a rotating disk and side fan blades. The rotating disk is fixedly sleeved on the surface of the motor output shaft, and the side fan blades are fixed on the side of the rotating disk. The side fan blades are located on the extension line of the central heat-conducting plate and the side flow guide plate.

[0011] The surface of the motor housing is fixedly fitted with a protective cover by a connecting rod. The protective cover is movably fitted onto the surface of the side fan blades and the rotating disk. Heat conduction grooves are provided on the surface of the protective cover at the positions corresponding to the heat conduction components and the side fan blades. The protective cover is rotatably connected to the motor output shaft.

[0012] The beneficial effects of this utility model are:

[0013] By incorporating a heat-conducting component and a synchronous rotating airflow guiding component, the heat-conducting component rapidly directs the internally generated heat and exchanges heat with the external air, achieving the initial heat dissipation purpose. When the stepper motor rotates rapidly, the motor output shaft drives the synchronous rotating airflow guiding component to rotate, causing the synchronous rotating airflow guiding component to drive the gas to flow rapidly. This accelerates the gas flow at the location of the heat-conducting component, thereby achieving the purpose of rapid heat exchange and achieving the effect of rapid heat dissipation for the stepper motor. This solves the problem that existing sealed stepper motors generate a lot of heat when rotating rapidly, making it difficult to dissipate the heat through heat exchange alone, which affects the normal operation of the stepper motor. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a stepper motor with cooling function proposed in this utility model.

[0016] Figure 2 This is a three-dimensional cross-sectional view of the location of the synchronous rotating flow guide component in a stepper motor with cooling function proposed in this utility model.

[0017] Figure 3 This is a three-dimensional cross-sectional view of another position of the synchronous rotating flow guide component of a stepper motor with cooling function proposed in this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the location of the heat-conducting component in a stepper motor with cooling function proposed in this utility model.

[0019] The attached diagram shows: 1. Motor housing; 2. Motor output shaft; 3. Heat conduction assembly; 4. Synchronous rotation airflow guide assembly; 5. Central aluminum heat conduction plate; 6. Side aluminum heat conduction plate; 7. Side heat conduction sheet; 8. Heat conduction cavity; 9. Central heat conduction sheet; 10. Rotating disk; 11. Side fan blade; 12. Protective cover; 13. Heat conduction channel. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] Example 1

[0022] refer to Figure 1-4 In this embodiment, the device includes a motor housing 1 and a motor output shaft 2. The motor output shaft 2 is mounted on the motor housing 1. Heat-conducting components 3 are embedded in the sides of the motor housing 1. The heat-conducting components 3 are mainly used to conduct heat generated inside the motor housing 1. The heat-conducting components 3 include a central aluminum heat-conducting plate 5 and side aluminum heat-conducting plates 6. The central aluminum heat-conducting plate 5 is embedded in the surface of the motor housing 1, with one end extending into the interior of the motor housing 1. The side aluminum heat-conducting plates 6 are embedded in the surface of the motor housing 1 near the central aluminum heat-conducting plate 5, with one end extending into the interior of the motor housing 1. Side heat-conducting sheets 7 are provided on the inner side of the side aluminum heat-conducting plates 6. Heat-conducting cavities 8 are formed inside the side aluminum heat-conducting plates 6 and side heat-conducting sheets 7, communicating with the interior of the motor housing 1. The heat conduction method at this location is mainly to introduce heated air into the heat-conducting cavity 8, and then the heat is transferred through the heat-conducting cavity 8. Since the side heat-conducting plates and side heat-conducting sheets 7 are located in the external environment, the external air will come into contact with the side heat-conducting plates and side heat-conducting sheets 7 and carry away their heat. Then, the hot air inside the side heat-conducting plates and side heat-conducting sheets 7 will continue to be introduced to the side heat-conducting sheets and side heat-conducting sheets 7 for heat dissipation. By continuing the above operation, efficient heat dissipation can be achieved. The side of the central aluminum heat-conducting plate 5 is provided with a central heat-conducting sheet 9. The central heat-conducting sheet 9 and the side heat-conducting sheets 7 are arranged in parallel. The central aluminum heat-conducting plate 5 conducts heat directly through contact with the electronic components inside the motor housing 1. The heat reaches the central aluminum heat-conducting plate 5 and the central heat-conducting sheet 9 after conduction. The external air carries its heat through the central aluminum heat-conducting plate 5 and the central heat-conducting sheet 9, further improving the purpose of heat dissipation. The central heat-conducting sheet 9 is parallel to the motor housing 1 and is designed in a "corrugated" shape to increase the contact area between the central heat-conducting sheet 9 and the external air, further improving the heat dissipation effect.

[0023] Example 2

[0024] refer to Figure 1-4In this embodiment, a synchronous rotating airflow guide assembly 4 is provided on the surface of the motor output shaft 2. The synchronous rotating airflow guide assembly 4 includes a rotating disk 10 and a side fan blade 11. The rotating disk 10 is fixedly sleeved on the surface of the motor output shaft 2, and the side fan blade 11 is fixed on the side of the rotating disk 10. The side fan blade 11 is located on the extension line of the central heat-conducting plate 9 and the side airflow guide plate. When the motor output shaft 2 rotates at high speed, it will drive the rotating disk 10 to rotate at high speed. The high-speed rotation of the rotating disk 10 will drive the side fan blade 11 to rotate at high speed. The high-speed rotation of the side fan blade 11 will drive the airflow at this position to flow rapidly. When the airflow flows rapidly, fresh air will continuously pass over the heat-conducting component 3, thereby quickly dissipating the heat on the heat-conducting component 3. The purpose of rapid heat dissipation is achieved by the rapid flow of airflow.

[0025] Example 3

[0026] refer to Figure 1-4 In this embodiment, a protective cover 12 is fixedly sleeved on the surface of the motor housing 1 via a connecting rod. The protective cover 12 is movably sleeved on the surface of the side fan blade 11 and the rotating disk 10. A heat conduction groove 13 is provided on the surface of the protective cover 12 at the positions corresponding to the heat conduction component 3 and the side fan blade 11. The protective cover 12 is rotatably connected to the motor output shaft 2. Since the rotation of the side fan blade 11 may cause certain dangers, the protective cover 12 is sleeved on the positions of the motor housing 1 and the side fan blade 11. The heat conduction groove 13 is designed to prevent the protective cover 12 from affecting the normal operation of the side fan blade 11. The purpose of the heat conduction groove 13 is to avoid affecting the gas flow when the protective cover 12 is protecting the motor, thus improving the overall safety.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stepper motor with a cooling function, characterized in that, The device includes a motor housing (1) and a motor output shaft (2). The motor output shaft (2) is mounted on the motor housing (1). Heat-conducting components (3) are embedded in the sides of the motor housing (1). The heat-conducting components (3) include a central aluminum heat-conducting plate (5) and a side aluminum heat-conducting plate (6). The central aluminum heat-conducting plate (5) is embedded in the surface of the motor housing (1), and one end of the central aluminum heat-conducting plate (5) extends into the interior of the motor housing (1). The side aluminum heat-conducting plate (6) is embedded in the surface of the motor housing (1) near the central aluminum heat-conducting plate (5), and one end of the side aluminum heat-conducting plate (6) extends into the interior of the motor housing (1). The surface of the motor output shaft (2) is provided with a synchronous rotation guide assembly (4).

2. The step motor with cooling function according to claim 1, characterized in that, The side aluminum heat-conducting plate (6) has a side heat-conducting sheet (7) on its inner side. The side aluminum heat-conducting plate (6) and the side heat-conducting sheet (7) have a heat-conducting cavity (8) inside. The heat-conducting cavity (8) communicates with the inside of the motor housing (1). The side of the central aluminum heat-conducting plate (5) has a central heat-conducting sheet (9). The central heat-conducting sheet (9) and the side heat-conducting sheet (7) are arranged in parallel, and the central heat-conducting sheet (9) is parallel to the motor housing (1).

3. The step motor with cooling function according to claim 2, characterized in that, The central heat-conducting plate (9) is designed in a "corrugated" shape.

4. The step motor with a cooling function according to claim 3, characterized in that, The synchronous rotating guide assembly (4) includes a rotating disk (10) and a side fan blade (11). The rotating disk (10) is fixedly sleeved on the surface of the motor output shaft (2), and the side fan blade (11) is fixed on the side of the rotating disk (10). The side fan blade (11) is located on the extension line of the central heat-conducting plate (9) and the side guide plate.

5. The step motor with a cooling function according to claim 4, characterized in that, The surface of the motor housing (1) is fixedly fitted with a protective cover (12) by a connecting rod. The protective cover (12) is movably fitted on the surface of the side fan blade (11) and the rotating disk (10). The surface of the protective cover (12) is provided with heat conduction grooves (13) at the positions corresponding to the heat conduction component (3) and the side fan blade (11). The protective cover (12) is rotatably connected to the motor output shaft (2).

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