Linear motor heat dissipation structure

Abstract

The utility model relates to a heat dissipation structure of a linear motor. The heat dissipation structure comprises a primary assembly and a secondary assembly, the secondary assembly comprises two magnet yoke carrier plates, a plurality of magnets, an intermediate plate and a gas circuit guide plate; the magnets of the two magnet yoke support plates are in one-to-one correspondence, and an air gap is formed between the magnets of the two magnet yoke support plates; the two air path guide plates are positioned at two opposite ends of the air gap; one face of the air channel guide plate is recessed inwards to form a first flow guide face, one side, corresponding to the first flow guide face, of the air channel guide plate inclines to form a second flow guide face, the second flow guide face is close to the air gap, the first flow guide face is away from the air gap, and an air inlet is formed between the first flow guide face and the magnet yoke carrier plate. The linear motor heat dissipation structure is simple in structure and convenient to use, the gas circuit guide plates are installed at the two opposite ends of the air gap, cooling gas is effectively guided into the air gap for heat dissipation through the first flow guide face and the second flow guide face, accurate guide-in and uniform distribution of the cooling gas are achieved, the heat dissipation efficiency is effectively improved, and the service life of the linear motor is prolonged. And the service life of the motor is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of linear motor heat dissipation technology, and in particular to a linear motor heat dissipation structure. Background Technology

[0002] A linear motor, also known as a linear drive, is a drive device that directly converts electrical energy into linear mechanical motion. Its basic structure consists of two parts: a stator and a mover. The stator is usually fixed on a guide rail and contains a series of coils and magnets to generate a stable magnetic field. The mover is mounted on the load that requires linear motion and also contains coils and electromagnetic components to receive the magnetic field generated by the stator and achieve the corresponding linear motion.

[0003] However, traditional linear motors typically use natural cooling, which has limited heat dissipation efficiency. During prolonged operation, the heat generated cannot be effectively dissipated, leading to increased motor temperature, a significant performance decline, and an inability to maintain high continuous output capacity. While external liquid cooling structures can provide efficient heat dissipation, these structures significantly increase structural and weight requirements, which is detrimental to leveraging the high acceleration and high response characteristics of linear motors. Utility Model Content

[0004] Based on this, the present invention provides a linear motor heat dissipation structure that is simple in structure and easy to use. Air guide plates are installed at opposite ends of the air gap, and the cooling gas is effectively introduced into the air gap for heat dissipation using the first and second guide surfaces. This achieves precise introduction and uniform distribution of cooling gas, effectively improves heat dissipation efficiency, and extends the service life of the motor.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted:

[0006] A linear motor heat dissipation structure includes: a primary component and a secondary component slidably connected to the primary component; the secondary component includes two parallel and spaced magnetic yoke carrier plates, a plurality of magnets respectively installed on the inner wall of each magnetic yoke carrier plate, an intermediate plate sandwiched between one side of the two magnetic yoke carrier plates, and an air passage guide plate sandwiched between opposite ends of the two magnetic yoke carrier plates; the magnets of the two magnetic yoke carrier plates correspond one-to-one, and an air gap is formed between the magnets of the two magnetic yoke carrier plates; the two air passage guide plates are located at opposite ends of the air gap; one side of the air passage guide plate is recessed inward to form a first guiding surface, which is parallel to the magnetic yoke carrier plate; the side of the air passage guide plate corresponding to the first guiding surface is inclined to form a second guiding surface, which is close to the air gap and the first guiding surface is far from the air gap, and an air inlet is formed between the first guiding surface and the magnetic yoke carrier plate.

[0007] The above-mentioned linear motor heat dissipation structure is simple in structure and easy to use. Air guide plates are installed at opposite ends of the air gap. The first and second guide surfaces are used to effectively guide the cooling gas into the interior of the air gap for heat dissipation. This achieves precise introduction and uniform distribution of cooling gas, effectively improving heat dissipation efficiency and extending the service life of the motor.

[0008] In one embodiment, the two air passage guide plates are arranged in a centrally symmetrical manner about the center of the air gap.

[0009] In one embodiment, the angle between the first guide surface and the second guide surface is an obtuse angle.

[0010] In one embodiment, the opening length of the second guide surface is greater than or equal to the length of the magnet.

[0011] In one embodiment, the primary assembly includes a coil carrier plate and a plurality of coil windings evenly spaced on the coil carrier plate.

[0012] In one embodiment, the length of the air gap is greater than the length of the coil carrier plate. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the heat dissipation structure of a linear motor according to one embodiment of the present invention;

[0014] Figure 2 for Figure 1 A three-dimensional schematic diagram of the linear motor heat dissipation structure from another perspective;

[0015] Figure 3 for Figure 1 The diagram shows an exploded view of the heat dissipation structure of the linear motor.

[0016] Figure 4 for Figure 3 An exploded view of the linear motor heat dissipation structure shown from another perspective;

[0017] Figure 5 for Figure 3 A three-dimensional schematic diagram of the air passage guide plate in the linear motor heat dissipation structure shown;

[0018] Figure 6 for Figure 1 A cross-sectional view of the heat dissipation structure of the linear motor shown.

[0019] Figure 7 for Figure 6 An enlarged view of circle A shown.

[0020] Attached image annotations:

[0021] 10 - Primary component; 11 - Coil carrier plate; 12 - Coil winding;

[0022] 20-Secondary component, 21-Magnetic yoke carrier plate, 22-Magnet, 23-Intermediate plate, 24-Air path guide plate, 25-First guide surface, 26-Second guide surface, 27-Air inlet. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] Please see Figures 1 to 7 The present invention provides a linear motor heat dissipation structure comprising a primary component 10 and a secondary component 20 that is slidably connected to the primary component 10.

[0027] The primary component 10 includes a coil carrier plate 11 and a plurality of coil windings 12 evenly spaced on the coil carrier plate 11.

[0028] The secondary component 20 includes two parallel and spaced magnetic yoke carrier plates 21, a plurality of magnets 22 respectively mounted on the inner wall of each magnetic yoke carrier plate 21, an intermediate plate 23 sandwiched between one side of the two magnetic yoke carrier plates 21, and an air passage guide plate 24 sandwiched between the opposite ends of the two magnetic yoke carrier plates 21. The magnets 22 of the two magnetic yoke carrier plates 21 are one-to-one, and an air gap is formed between the magnets 22 of the two magnetic yoke carrier plates 21 to accommodate the primary component 10.

[0029] In this embodiment, the length of the air gap is greater than the length of the coil carrier plate 11.

[0030] Specifically, the two air passage guide plates 24 are located at opposite ends of the air gap, and the two air passage guide plates 24 are centrally symmetrical about the center of the air gap, ensuring that the subsequently introduced cooling gas is evenly distributed inside the air gap. Figure 5As shown, one side of the air passage guide plate 24 is recessed inward to form a first guide surface 25. The first guide surface 25 is parallel to the magnetic yoke carrier plate 21 and is used to guide the cooling gas into the air gap. The side of the air passage guide plate 24 corresponding to the first guide surface 25 is inclined to form a second guide surface 26. The second guide surface 26 is close to the air gap, and the first guide surface 25 is far away from the air gap. An air inlet 27 is formed between the first guide surface 25 and the magnetic yoke carrier plate 21. The air inlet 27 is used to connect to the air supply equipment through the air pipe, so that the cooling gas is introduced into the interior of the air gap for heat dissipation after passing through the first guide surface 25 and the second guide surface 26.

[0031] In this embodiment, the angle between the first guide surface 25 and the second guide surface 26 is an obtuse angle, which facilitates guiding the cooling gas into the inner part of the air gap, increasing the contact area between the cooling gas and the primary component 10 and the secondary component 20, thereby effectively improving heat dissipation efficiency. Compared with traditional air cooling or liquid cooling, this invention, through the precise design of the air passage guide plate 24, cleverly integrates a gas guiding mechanism without increasing the volume, achieving precise introduction and uniform distribution of cooling gas, maintaining the compactness and aesthetics of the motor structure, effectively improving heat dissipation efficiency, and extending the service life of the motor.

[0032] Furthermore, such as Figure 5 As shown, in this embodiment, the opening length W of the second guide surface 26 is greater than or equal to the length of the magnet 22.

[0033] The above-mentioned linear motor heat dissipation structure is simple in structure and easy to use. Air guide plates 24 are installed at opposite ends of the air gap. The first guide surface 25 and the second guide surface 26 are used to effectively guide the cooling gas into the interior of the air gap for heat dissipation. This achieves precise introduction and uniform distribution of cooling gas, effectively improves heat dissipation efficiency, and extends the service life of the motor.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heat dissipation structure for a linear motor, characterized in that, include: A primary component and a secondary component slidably connected to the primary component; the secondary component includes two parallel and spaced magnetic yoke carrier plates, multiple magnets respectively installed on the inner wall of each magnetic yoke carrier plate, an intermediate plate sandwiched between one side of the two magnetic yoke carrier plates, and an air passage guide plate sandwiched between the opposite ends of the two magnetic yoke carrier plates; the magnets of the two magnetic yoke carrier plates correspond one-to-one, and an air gap is formed between the magnets of the two magnetic yoke carrier plates; the two air passage guide plates are located at opposite ends of the air gap; one side of the air passage guide plate is concave inward to form a first guide surface, which is parallel to the magnetic yoke carrier plate; the side of the air passage guide plate corresponding to the first guide surface is inclined to form a second guide surface, which is close to the air gap, and the first guide surface is far away from the air gap, forming an air inlet between the first guide surface and the magnetic yoke carrier plate.

2. The linear motor heat dissipation structure according to claim 1, characterized in that, The two air passage guide plates are arranged symmetrically about the center of the air gap.

3. The linear motor heat dissipation structure according to claim 1, characterized in that, The angle between the first guide surface and the second guide surface is an obtuse angle.

4. The linear motor heat dissipation structure according to claim 1, characterized in that, The opening length of the second guide surface is greater than or equal to the length of the magnet.

5. The linear motor heat dissipation structure according to claim 1, characterized in that, The primary components include a coil carrier plate and multiple coil windings evenly spaced on the coil carrier plate.

6. The linear motor heat dissipation structure according to claim 5, characterized in that, The length of the air gap is greater than the length of the coil carrier plate.

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