An assembled heat dissipation structure of a three-phase asynchronous motor retrofitted into a synchronous reluctance motor

Abstract

This utility model provides an assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor, belonging to the field of motor refurbishment technology. It includes multiple mounting block groups, multiple heat dissipation plates, multiple axial limiting blocks, and two limiting rings. The mounting block groups are all fixedly installed on the outer surface of the motor housing. The mounting blocks in each group are arranged axially along the motor housing and have radial limiting grooves at their upper ends. Each heat dissipation plate has a mounting portion on one side and extends away from the housing on the other side. The axial limiting blocks are all fixedly installed on the motor housing and located between adjacent mounting block groups. The two limiting rings are respectively installed at both ends of the axial limiting blocks and are fixedly connected to them. This assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor facilitates the replacement and repair of the heat dissipation plates and allows for adjustment of heat dissipation performance.

Description

Technical Field

[0001] This utility model belongs to the field of motor refurbishment technology, and more specifically, it relates to an assembly heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor. Background Technology

[0002] Reluctance motors generate their magnetic field using permanent magnets, eliminating the need for excitation coils and current. This results in higher efficiency and power factor, while reducing energy consumption and operating costs in production. Furthermore, reluctance motors are simple in structure, highly reliable, and have low environmental requirements, operating in harsh environments such as high and low temperatures, humidity, and dust. This makes them widely applicable across various industries and fields. Therefore, refurbishing three-phase asynchronous motors into reluctance motors has significant development potential. Currently, the heat dissipation fins on the motor casing are directly welded to the side, allowing heat generated inside the motor to dissipate. However, during motor refurbishment, damaged heat dissipation fins on the outer surface of the old motor casing are difficult to repair, and their heat dissipation performance cannot be adjusted. Utility Model Content

[0003] The purpose of this utility model is to provide an assembly heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor, so as to solve the technical problems in the prior art where the heat dissipation fins on the outer surface of the motor housing are difficult to repair after damage and the heat dissipation performance cannot be adjusted.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An assembly heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor is provided, comprising multiple mounting block groups, multiple heat dissipation plates, multiple axial limiting blocks, and two limiting rings; the mounting block groups are all fixedly installed on the outer surface of the motor housing and are arranged at intervals along the circumference of the motor housing; the mounting blocks in each mounting block group are arranged axially along the motor housing, and have radial limiting grooves arranged along the length direction at their upper ends; one side of each heat dissipation plate has a mounting part that cooperates with the radial limiting groove, and the other side extends in a direction away from the housing; the axial limiting blocks are all fixedly installed on the motor housing and are located between two adjacent mounting block groups; the two limiting rings are respectively installed at both ends of the axial limiting blocks and are fixedly connected to the multiple axial limiting blocks; the side of the limiting ring abuts against the end face of the mounting block.

[0005] In one possible implementation, the radial limiting groove is a T-shaped groove, and the mounting part is a horizontal plate fixedly connected to the lower end of the heat sink fin. The horizontal plate and the lower outer side of the heat sink fin are fitted with the T-shaped groove for installation.

[0006] In one possible implementation, the mounting portion is integrally formed with the heat sink.

[0007] In one possible implementation, the thickness of the heat sink gradually decreases from the inside to the outside along the radial direction of the motor housing.

[0008] In one possible implementation, both ends of the axial limiting strip are provided with connecting holes, and the limiting ring is provided with multiple through holes corresponding to the connecting holes and fasteners installed on the through holes. The limiting ring and the multiple axial limiting strips are fixedly connected by fasteners.

[0009] In one possible implementation, the limiting ring includes a ring body and a plurality of protrusions mounted on the outer surface of the ring body. The plurality of protrusions correspond one-to-one with a plurality of axial limiting strips. The through holes are formed on the protrusions, and the ring body corresponds to a plurality of radial limiting grooves.

[0010] In one possible implementation, the axial limiting block includes two blocks respectively installed at both ends of the outer side of the motor housing, and both blocks are provided with the connecting hole.

[0011] In one possible implementation, the mounting strip has the same length as the axial limiting strip, and the sum of the length of the mounting strip and the thickness of the two limiting rings is less than or equal to the length of the motor housing.

[0012] In one possible implementation, multiple mounting strips in the same mounting strip group are arranged at intervals.

[0013] In one possible implementation, multiple mounting strips in the same mounting strip group are integrally formed, and multiple radial limiting grooves are arranged at intervals.

[0014] The advantages of this utility model for the assembly and heat dissipation structure of a three-phase asynchronous motor refurbished into a synchronous reluctance motor are as follows: Compared with the prior art, the assembly and heat dissipation structure of this utility model involves welding and fixing multiple mounting strip groups onto the motor housing during installation, and fixing axial limiting strips between adjacent mounting strip groups; then, multiple heat dissipation plates are inserted one by one into the radial limiting grooves on the mounting strips, making the heat dissipation plates perpendicular to the motor housing; finally, two limiting rings are installed at both ends of the motor housing, fixing the limiting rings to the multiple axial limiting strips, and the two limiting rings abut against both ends of the heat dissipation plates, achieving axial limiting of the multiple heat dissipation plates. By assembling the heat dissipation plates onto the motor housing, the heat generated by the motor during operation can be dissipated to the surrounding environment more quickly; when the heat dissipation plates are damaged, they can be easily disassembled and replaced for repair; and when improved heat dissipation performance is required, larger heat dissipation plates can be used instead. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the assembled heat dissipation structure provided in an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the assembled heat dissipation structure without the installation of the limiting ring provided in an embodiment of the present utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0020] Figure 5 A schematic diagram of the assembled heat dissipation structure without the installation of the limiting ring and heat sink provided in the embodiment of this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0022] Figure 7 This is a schematic diagram of the structure of the heat sink provided in an embodiment of the present utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the limiting ring provided in an embodiment of the present utility model;

[0024] Figure 9 This is a partial schematic diagram showing the spaced arrangement of multiple mounting strips according to an embodiment of the present utility model.

[0025] The following are the labeling elements in the figure:

[0026] 10. Mounting block; 11. Radial limiting groove; 20. Heat sink plate; 21. Mounting part; 30. Axial limiting block; 31. Connecting hole; 40. Limiting ring; 41. Through hole; 42. Fastener; 43. Ring body; 44. Protrusion; 50. Motor housing. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Please see Figures 1 to 9 The present invention will now describe the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor. An assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor includes multiple mounting block groups, multiple heat dissipation plates 20, multiple axial limiting blocks 30, and two limiting rings 40. The mounting block groups are all fixedly mounted on the outer surface of the motor housing 50 and are spaced apart circumferentially along the motor housing 50. Each mounting block 10 in each mounting block group is arranged axially along the motor housing 50, and its upper end is provided with a radial limiting groove 11 arranged along its length. One side of the heat dissipation plate 20 is provided with a mounting part 21 that cooperates with the radial limiting groove 11, and the other side extends in a direction away from the housing. The axial limiting blocks 30 are all fixedly mounted on the motor housing 50 and are located between two adjacent mounting block groups. The two limiting rings 40 are respectively mounted at both ends of the axial limiting blocks 30 and are fixedly connected to the multiple axial limiting blocks 30. The side of the limiting rings 40 abuts against the end face of the mounting blocks 10.

[0032] The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, compared with the prior art, involves welding and fixing multiple mounting strip groups onto the motor housing 50 during installation, and fixing axial limiting strips 30 between adjacent mounting strip groups; then, multiple heat dissipation plates 20 are inserted one by one into the radial limiting grooves 11 on the multiple mounting strips 10, so that the heat dissipation plates 20 are arranged perpendicular to the motor housing 50; finally, two limiting rings 40 are respectively installed at both ends of the motor housing 50, fixing the limiting rings 40 to the multiple axial limiting strips 30, and the two limiting rings 40 abut against both ends of the heat dissipation plates 20 to achieve axial limiting of the multiple heat dissipation plates 20. By assembling the heat dissipation plates 20 onto the motor housing 50, the heat generated by the motor during operation can be dissipated to the surrounding environment more quickly; when the heat dissipation plates 20 are damaged, they can be easily disassembled and replaced for repair; and when it is necessary to improve the heat dissipation performance, a larger heat dissipation plate 20 can be replaced.

[0033] Please see Figures 1 to 9 As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, the radial limiting groove 11 is a T-shaped groove, and the mounting part 21 is a horizontal plate fixedly connected to the lower end of the heat dissipation plate 20. The lower outer side of the horizontal plate and the heat dissipation plate 20 are fitted with the T-shaped groove for installation. The width of the horizontal plate is greater than the thickness of the heat dissipation plate 20. During installation, one end of the horizontal plate is first aligned with the T-shaped groove, and then it is slowly pushed in along the direction of the T-shaped groove until the lower outer side of the heat dissipation plate 20 is completely embedded in the T-shaped groove. This design of the T-shaped groove and the horizontal plate can not only achieve radial limiting of the heat dissipation plate 20 and prevent it from shifting in the radial direction, but also ensure the stability of the heat dissipation plate 20 installation. At the same time, a layer of thermally conductive silicone grease is also coated on the contact surface between the horizontal plate and the T-shaped groove, which helps to improve the heat conduction efficiency between the heat dissipation plate 20 and the mounting block 10, further enhancing the heat dissipation effect.

[0034] Please see Figure 1 and Figure 2 As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, the mounting part 21 and the heat dissipation plate 20 are integrally formed. This integral forming design makes the connection between the mounting part 21 and the heat dissipation plate 20 more stable, avoiding problems such as loosening and displacement that may occur due to loose assembly connections, and greatly improving the stability of the entire heat dissipation structure. The integral forming structure helps heat to be conducted more efficiently between the mounting part 21 and the heat dissipation plate 20, enhancing the heat dissipation effect and enabling the heat generated by the equipment to be dissipated more quickly.

[0035] Please see Figure 1 and Figure 2 As a specific embodiment of the assembly heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, the thickness of the heat dissipation plate 20 gradually decreases from the inside to the outside along the radial direction of the motor housing 50. This method not only effectively reduces the overall weight of the heat dissipation plate 20 and reduces the additional load on the motor, but also significantly improves the heat dissipation efficiency. Because the heat is more concentrated in the area near the inside of the motor housing 50, the thicker plate can provide a larger heat conduction area and better heat capacity, quickly dissipating heat from the inside of the motor. As it extends outward, the heat gradually disperses, and the thinner plate is sufficient to meet the heat dissipation requirements, while also reducing the amount of material used and lowering costs. In addition, this gradually thickened structure also enhances the structural stability of the heat dissipation plate 20. Under the vibration and impact generated during motor operation, it can better maintain its shape and is less prone to deformation or damage, further ensuring the stable operation of the motor and the continuity of the heat dissipation effect.

[0036] Please see Figure 1 and Figure 2 As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, both ends of the axial limiting block 30 are provided with connecting holes 31. The limiting ring 40 is provided with multiple through holes 41 corresponding to the connecting holes 31 and fasteners 42 installed on the through holes 41. The limiting ring 40 and the multiple axial limiting blocks 30 are fixedly connected by the fasteners 42. After multiple heat dissipation plates 20 are installed in multiple radial limiting grooves 11, two limiting rings 40 are respectively installed at both ends of the motor housing 50, and one side of the limiting ring 40 abuts against the mounting block 10 and the axial limiting block 30, thereby achieving axial positioning of the heat dissipation plates 20 by means of the two limiting rings 40. At the same time, the fasteners 42 pass through the through holes 41 and enter the connecting holes 31 to be fixedly connected to the axial limiting blocks 30. Preferably, the connecting holes 31 are screw holes, and the fasteners 42 are bolts or screws.

[0037] Please see Figure 1 and Figure 2As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, the limiting ring 40 includes a ring body 43 and multiple protrusions 44 mounted on the outer surface of the ring body 43. Each protrusion 44 corresponds to a multiple axial limiting strip 30. Through holes 41 are formed on the protrusions 44, and the ring body 43 corresponds to multiple radial limiting grooves 11. When installing the limiting ring 40, the ring body 43 abuts against the heat dissipation plates 20 on the multiple mounting strips 10, while the protrusions 44 abut against the axial limiting strips 30. This method simplifies the structure of the limiting ring 40, ensures a secure installation, and provides good limiting effect on the heat dissipation plates 20. Preferably, the ring body 43 has an outwardly protruding T-shaped boss, which is embedded in the radial limiting groove 11.

[0038] Please see Figure 1 and Figure 2 As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, the axial limiting block 30 includes two blocks respectively installed at both ends of the outer side of the motor housing 50, and each block is provided with a connecting hole 31; setting the axial limiting block 30 as a two-block structure greatly reduces the weight of the axial limiting block 30 and will not affect the motor itself. Connecting holes 31 are provided on both blocks for fixed connection with two limiting rings 40.

[0039] Please see Figure 1 and Figure 2 As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, the mounting strip 10 and the axial limiting strip 30 have the same length, and the sum of the length of the mounting strip 10 and the thickness of the two limiting rings 40 is less than or equal to the length of the motor housing 50; so that there is a certain distance between the two ends of the mounting strip 10 and the axial limiting strip 30 and the two ends of the motor housing 50, and the limiting rings 40 are installed in this distance so that the limiting rings 40 will not interfere with the installation of the motor end cover.

[0040] Please see Figure 9 As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, multiple mounting strips 10 in the same mounting strip group are arranged at intervals; multiple mounting strips 10 in the same mounting strip group are arranged at intervals; and the interval distance between each mounting strip 10 is equal. This equal-interval arrangement helps to ensure the stability and uniform stress of the entire mounting structure.

[0041] Please see Figure 1 and Figure 2As a specific embodiment of the assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor provided by this utility model, multiple mounting strips 10 in the same mounting strip group are integrally formed, and multiple radial limiting grooves 11 are arranged at intervals; the integrally formed mounting strip group has high structural strength and can withstand greater external forces without being easily damaged. This method also simplifies the operation of fixing the mounting strips 10 to the motor housing 50, making the operation faster.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor, characterized in that, The device includes multiple mounting block groups, multiple heat sink plates, multiple axial limiting blocks, and two limiting rings. Each mounting block group is fixedly mounted on the outer surface of the motor housing and arranged at intervals along the circumference of the motor housing. Each mounting block in each mounting block group is arranged axially along the motor housing and has a radial limiting groove at its upper end, arranged along its length. One side of each heat sink plate has a mounting portion that mates with the radial limiting groove, and the other side extends in a direction away from the housing. Each axial limiting block is fixedly mounted on the motor housing and located between adjacent mounting block groups. The two limiting rings are respectively mounted at both ends of each axial limiting block and are fixedly connected to the multiple axial limiting blocks. The side of each limiting ring abuts against the end face of the mounting block.

2. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 1, characterized in that, The radial limiting groove is a T-shaped groove, and the mounting part is a horizontal plate fixedly connected to the lower end of the heat sink. The lower outer sides of the horizontal plate and the heat sink are fitted with the T-shaped groove for installation.

3. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 2, characterized in that, The mounting part is integrally formed with the heat sink.

4. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 1, characterized in that, The thickness of the heat sink gradually decreases from the inside to the outside along the radial direction of the motor housing.

5. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 1, characterized in that, Both ends of the axial limiting strip are provided with connecting holes. The limiting ring is provided with multiple through holes corresponding to the connecting holes and fasteners installed on the through holes. The limiting ring and the multiple axial limiting strips are fixedly connected by fasteners.

6. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 5, characterized in that, The limiting ring includes a ring body and a plurality of protrusions mounted on the outer side of the ring body. The plurality of protrusions correspond one-to-one with the plurality of axial limiting blocks. The through holes are opened on the protrusions. The ring body corresponds to the plurality of radial limiting grooves.

7. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 5, characterized in that, The axial limiting block includes two blocks respectively installed at both ends of the outer side of the motor housing, and each of the two blocks is provided with the connecting hole.

8. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 1, characterized in that, The mounting strip has the same length as the axial limiting strip, and the sum of the length of the mounting strip and the thickness of the two limiting rings is less than or equal to the length of the motor housing.

9. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 1, characterized in that, Multiple mounting strips in the same mounting strip group are arranged at intervals.

10. The assembly and heat dissipation structure for refurbishing a three-phase asynchronous motor into a synchronous reluctance motor as described in claim 1, characterized in that, Multiple mounting strips in the same mounting strip group are integrally formed, and multiple radial limiting grooves are arranged at intervals.

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