Motor base with liquid cooling flow channel and processing method thereof

Abstract

The invention discloses a motor base with a liquid cooling flow channel and a processing method thereof, and relates to the technical field of motor bases. According to the technical scheme, the motor base is characterized by comprising a motor base cylinder and an outer cover plate arranged on the outer side of the motor base cylinder in a sleeving mode, a plurality of water channel ribs are evenly distributed on the circumferential surface of the motor base cylinder, a liquid cooling flow channel is formed between the motor base cylinder and the outer cover plate through the water channel ribs, and a plurality of plug welding holes are evenly formed in the surface of the outer cover plate in the direction of the water channel ribs. A plug welding seam is formed in the plug welding hole through plug welding. The invention aims to provide a motor base with a liquid cooling flow channel and a processing method thereof.

Description

Technical Field

[0001] This invention relates to the field of motor housing technology, and more specifically, to a motor housing with a liquid cooling channel and a method for processing the same. Background Technology

[0002] Electric motors are the power source for industrial systems, and the power systems of extrusion machinery require dual-shaft motors for power output. Permanent magnet motors have advantages such as simple structure, small size, light weight, low loss, high efficiency, high power factor, and wide speed range. They are mainly used in applications requiring fast response, wide speed range, and accurate positioning.

[0003] However, due to its fast response and wide speed requirements, its internal components generate a significant amount of heat during operation. This heat generation primarily stems from losses occurring during normal operation, including resistance losses as current flows through the windings and iron losses in the core. These losses convert electrical energy into heat, which is then dissipated. Additionally, high-speed mechanical motion during operation causes friction between mechanical components, which also generates heat that is transferred to the motor components and the external environment. Due to the limitations of the motor's structure, this heat accumulates, gradually increasing the internal temperature and affecting the performance and lifespan of its internal components. Furthermore, increased power density leads to a greater thermal load on the motor, making the ability to handle this thermal load a crucial factor limiting further increases in power density.

[0004] In existing technologies, liquid cooling channels are installed inside the motor housing and coolant is introduced to dissipate heat from the motor housing. However, the traditional processing of liquid cooling channels for motors usually involves welding water channel ribs and then machining the outer circle of the water channel ribs and the inner circle of the outer cover plate to achieve a fit. This relies on high-precision machining to ensure the fit clearance, which is a complex process with high production costs.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a motor base with a liquid cooling channel and its processing method.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a motor base with a liquid cooling channel, comprising a base cylinder and an outer cover plate sleeved on the outside of the base cylinder, wherein a plurality of water channel ribs are evenly distributed on the circumferential surface of the base cylinder, and a liquid cooling channel is formed between the base cylinder and the outer cover plate through the water channel ribs, wherein a plurality of plug welding holes are evenly opened on the surface of the outer cover plate along the direction of the water channel ribs, and plug welds are formed in the plug welding holes through plug welding.

[0008] The present invention is further configured such that the length of the plug welding hole is greater than 1 cm and less than 2 cm.

[0009] The present invention is further configured such that a plurality of plug weld holes located above one of the water channel reinforcing bars are equally spaced, and the distance between two adjacent plug weld holes is greater than 1.5 cm and less than 2.5 cm.

[0010] The present invention is further configured such that: the water channel rib includes a first water channel rib extending to both ends of the base tube, and also includes several evenly spaced second water channel ribs and third water channel ribs, with a gap between one end of the second water channel rib and the end of the base tube, and a gap between the other end of the third water channel rib and the end of the base tube, thereby forming an S-shaped liquid cooling flow channel.

[0011] The present invention is further configured such that: a limiting groove is formed on the surface of the first water channel rib along its length direction, and a limiting strip inserted into the limiting groove is provided on the inner circumferential wall of the outer cover plate.

[0012] The present invention is further configured such that the water channel reinforcement is made of flat steel.

[0013] A method for machining a motor base includes the following steps:

[0014] S1. Pre-treatment of outer cover plate: Cut steel plates of specified size according to the size of motor base and pre-open plug welding holes on them;

[0015] S2. Outer cover plate rolling: The steel plate with plug welding holes opened in S1 is rolled into a round shape using a rolling equipment to form an outer cover plate of a specified size.

[0016] S3. Pre-treatment of the base tube: According to the size of the motor base, cut the metal plate of the specified size, roll it into a circle using a rolling equipment, fix both ends of the plate to form the base tube, and fix the water channel ribs to the circumferential surface of the base tube according to the preset liquid cooling channel.

[0017] S4. Base assembly: After inserting the base cylinder into the inner cavity of the outer cover plate, make the plug welding holes correspond to each water channel rib, and plug weld each plug welding hole to fix the outer cover plate to the water channel rib on the base cylinder.

[0018] The present invention is further configured such that: in step S1, when the steel plate is cut, its length is greater than the perimeter of the outer cover plate; in step S2, the two ends of the cut steel plate are first bent inward, and after rolling, the two bent parts are welded to form a limiting strip; in step S4, a limiting groove for the limiting strip to pass through is opened on the surface of the first water channel rib.

[0019] The present invention is further configured such that in step S4, segmented skip welding is adopted, and welding is performed at intervals of 3-4 plug welding holes.

[0020] The present invention has the following beneficial effects: by pre-opening plug welding holes in the outer cover plate, and by plug welding at the plug welding holes, and fixing them to several water channel ribs on the surface of the base cylinder, the production complexity of the motor base is greatly reduced, the processing steps are reduced by 60%, the material cost is reduced by 20%, and there is no need to use high-precision processing equipment, which greatly reduces the production cost. Attached Figure Description

[0021] Figure 1 This is a cross-sectional structural diagram of this embodiment;

[0022] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0023] Figure 3 This is a schematic diagram of the machine base cylinder in this embodiment;

[0024] Figure 4 for Figure 1 A magnified view of part B in the middle section;

[0025] Figure 5 This is a schematic diagram of the structure of the outer cover plate before it is rolled into a circle in this embodiment.

[0026] Figure descriptions: 1. Base cylinder; 2. Outer cover plate; 201. Limiting strip; 3. Water channel rib; 301. First water channel rib; 3011. Limiting groove; 302. Second water channel rib; 303. Third water channel rib; 4. Liquid cooling channel; 5. Plug weld hole; 6. Plug weld. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively. Specific Implementation Example 1:

[0030] As shown in the figure, a motor base with a liquid cooling channel includes a base cylinder 1 and an outer cover plate 2 sleeved on the outside of the base cylinder 1. A plurality of water channel ribs 3 are evenly distributed on the circumferential surface of the base cylinder 1. A liquid cooling channel 4 is formed between the base cylinder 1 and the outer cover plate 2 through the water channel ribs. A plurality of plug welding holes 5 are evenly opened on the surface of the outer cover plate 2 along the direction of the water channel ribs 3. A plug weld 6 is formed in the plug welding holes 5 through plug welding.

[0031] By pre-opening plug welding holes 5 in the outer cover plate 2 and plug welding at the plug welding holes 5, and fixing them to several water channel ribs on the surface of the base cylinder 1, the production complexity of the motor base is greatly reduced, the processing steps are reduced by 60%, the material cost is reduced by 20%, and high-precision processing equipment is not required, which greatly reduces the production cost.

[0032] The length of the plug weld hole 5 is greater than 1 cm and less than 2 cm. Several plug weld holes 5 located above a water channel rib are evenly distributed, and the distance between two adjacent plug weld holes 5 is greater than 1.5 cm and less than 2.5 cm, so as to ensure the connection strength of the outer cover plate 2 and improve the sealing performance of the liquid cooling channel 4.

[0033] The water channel rib 3 includes a first water channel rib 301, which extends to both ends of the base cylinder 1, and also includes several evenly spaced second water channel ribs 302 and third water channel ribs 303. A gap is left between one end of the second water channel rib 302 and the end of the base cylinder 1, and a gap is left between the other end of the third water channel rib 302 and the end of the base cylinder 1, thereby forming an S-shaped liquid cooling channel 4.

[0034] The surface of the first water channel rib 301 is provided with a limiting groove 3011 along its length direction, and the inner circumference of the outer cover plate 2 is provided with a limiting strip 201 inserted into the limiting groove 3011, which further improves the overall structural stability of the motor base after installation.

[0035] The water channel rib 3 is made of flat steel, which has excellent welding performance, making it easier and more uniform for the welding material to melt and fill the plug weld hole 5. The surface of the water channel rib and the outer cover plate 2 form a strong and reliable plug weld 6, and it is easy to cut, making it convenient to open the limiting groove 3011 on its surface. Specific Implementation Example 2:

[0037] A method for processing the above-mentioned motor frame includes the following steps:

[0038] S1. Pre-treatment of outer cover plate 2: Cut steel plates of specified size according to the size of the motor base, and pre-open plug welding holes 5 on them;

[0039] S2, Outer cover plate 2 roll: The steel plate with the plug welding hole 5 opened in S1 is rolled into a circle by a rolling equipment to form an outer cover plate 2 of a specified size;

[0040] S3. Pre-treatment of base cylinder 1: According to the size of the motor base, cut the metal plate of the specified size, roll it into a circle using a rolling device, fix both ends of the plate to form a base cylinder, and fix the water channel ribs to the circumferential surface of the base cylinder 1 according to the preset liquid cooling channel.

[0041] S4. Base assembly: After inserting the base cylinder 1 into the inner cavity of the outer cover plate 2, make the plug welding holes 5 correspond to each water channel rib, and perform plug welding at each plug welding hole 5 to fix the outer cover plate 2 to the water channel rib on the base cylinder 1.

[0042] In step S1, when cutting the steel plate, its length is greater than the perimeter of the outer cover plate 2; in step S2, the two ends of the cut steel plate are first bent inward, and after rolling, the two bent parts are welded to form a limiting strip; in step S4, a limiting strip is opened on the surface of the first water channel rib for the limiting strip to pass through.

[0043] In step S4, segmented skip welding is used, with welding performed at intervals of 3-4 plug welding holes 5 to prevent local high heat input from causing deformation of the machine base cylinder 1.

[0044] The specific embodiments are merely illustrative of the present invention.

[0045] Slot.

[0046] This description is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification, but such modifications are protected by patent law as long as they are within the scope of the claims of this invention.

Claims

1. A motor base with a liquid-cooled flow channel, characterized in that: The device includes a base cylinder (1) and an outer cover plate (2) sleeved on the outside of the base cylinder (1). A number of water channel ribs (3) are evenly distributed on the circumferential surface of the base cylinder (1). A liquid cooling channel (4) is formed between the base cylinder (1) and the outer cover plate (2) through the water channel ribs (3). A number of plug welding holes (5) are evenly opened on the surface of the outer cover plate (2) along the direction of the water channel ribs (3). A plug weld (6) is formed in the plug welding holes (5) through plug welding.

2. The motor housing with a liquid-cooled flow channel according to claim 1, characterized in that: The length of the plug weld hole (5) is greater than 1 cm and less than 2 cm.

3. A motor housing with a liquid-cooled flow channel according to claim 2, characterized in that: Several plug weld holes (5) located above one of the water channel bars (3) are equally spaced, and the distance between two adjacent plug weld holes (5) is greater than 1.5 cm and less than 2.5 cm.

4. A motor housing with a liquid-cooled flow channel according to claim 1, characterized in that: The water channel rib (3) includes a first water channel rib (301) extending to both ends of the base cylinder (1), and also includes several evenly spaced second water channel ribs (302) and third water channel ribs (303). A gap is left between one end of the second water channel rib (302) and the end of the base cylinder (1), and a gap is left between the other end of the third water channel rib (303) and the end of the base cylinder (1), thereby forming an S-shaped liquid cooling channel.

5. A motor housing with a liquid-cooled flow channel according to claim 4, characterized in that: The surface of the first water channel rib (301) is provided with a limiting groove (3011) along its length direction, and the inner circumferential wall of the outer cover plate (2) is provided with a limiting strip (201) inserted into the limiting groove (3011).

6. A motor housing with a liquid-cooled flow channel according to claim 5, characterized in that: The water channel reinforcement (3) is made of flat steel.

7. A method for processing a motor base for any of claims 1-5, characterized in that: Includes the following steps: S1, outer cover plate (2) pretreatment: cut steel plates of specified size according to the size of the motor base, and pre-open plug welding holes (5) on them; S2, Outer cover plate (2) roll: The steel plate with plug welding holes (5) opened in S1 is rolled into a circle by a rolling equipment to form an outer cover plate (2) of a specified size; S3, Pre-treatment of base tube (1): According to the size of the motor base, cut the metal plate of the specified size, roll it into a circle using a rolling device, fix both ends of the plate to form base tube (1), and fix the water channel rib (1) to the circumferential surface of the base tube (1) according to the preset liquid cooling channel. S4. Base assembly: After inserting the base cylinder (1) into the inner cavity of the outer cover plate (2), make the plug welding holes (5) correspond to each water channel rib, and perform plug welding at each plug welding hole (5) to fix the outer cover plate (2) to the water channel rib on the base cylinder (1).

8. A method for processing a motor base according to claim 7, characterized in that: In step S1, when the steel plate is cut, its length is greater than the perimeter of the outer cover plate (2); in step S2, the two ends of the cut steel plate are first bent inward, and after rolling, the two bent parts are welded to form a limiting strip (201); in step S4, a limiting groove (3011) for the limiting strip to pass through is opened on the surface of the first water channel rib (301).

9. A method for processing a motor base according to claim 7, characterized in that: In step S4, segmented skip welding is used, with welding performed at intervals of 3-4 plug weld holes (5).

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