Hollow cup servo motor heat dissipation structure

Abstract

The utility model discloses a hollow cup servo motor heat dissipation structure relates to motor heat dissipation technical field, its characterized in that, including: the casing is installed with a set of radiators, and each radiator is fixedly connected with radiating fin respectively, and the installation ring is fixedly connected with a set of mounting seat respectively, and two groups of connecting rods are fixedly connected with first screw rod respectively at both ends of each connecting rod, and each first screw rod is respectively through corresponding mounting seat screw thread connection nut, the utility model discloses the technical problem to be solved is to provide a hollow cup servo motor heat dissipation structure, and the weight of motor is alleviated, and the heat dissipation is conveniently realized.

Description

Technical Field

[0001] This utility model relates to the field of motor heat dissipation technology, specifically to a heat dissipation structure for a hollow cup servo motor. Background Technology

[0002] The coreless servo motor is a type of DC permanent magnet servo motor with a "coreless rotor," and is known in the industry as the "crown jewel of motors." It makes the windings into a self-supporting thin-walled cup shape, completely eliminating the silicon steel sheet core, and thus simultaneously possesses the three major characteristics of "extremely low inertia, extremely high efficiency, and extremely fast response," making it particularly suitable for high-end applications with stringent requirements for size, weight, precision, and dynamic performance.

[0003] Existing technologies, such as the utility model of a hollow cup servo motor (authorization number CN219247567U), utilize aluminum housings to achieve good thermal conductivity, wear resistance, light weight, and aesthetic appearance. Copper heat sinks further enhance heat dissipation, thus extending the motor's lifespan.

[0004] Currently, there is a lack of a hollow cup servo motor heat dissipation structure that can facilitate motor heat dissipation while reducing motor weight. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a heat dissipation structure for a hollow cup servo motor, which reduces the weight of the motor and facilitates heat dissipation.

[0006] This utility model achieves its purpose through the following technical solution:

[0007] A heat dissipation structure for a hollow cup servo motor, characterized by comprising: a housing, serving as the stator outer frame of the motor, directly absorbing the copper and iron losses of the windings and magnets; a set of heat dissipation pipes installed within the air gap of the motor, using Φ1.5mm heat pipes to rapidly dissipate heat from the windings via phase change heat transfer; rapidly dissipating heat to heat dissipation fins away from the motor body to reduce heat recirculation; each heat dissipation pipe being fixedly connected to a heat dissipation fin; a mounting ring, fixedly connected to a set of mounting seats; and two sets of connecting rods, each connecting rod having its ends fixedly connected to a first screw, each first screw passing through a threaded nut on the corresponding mounting seat.

[0008] As a further limitation of this technical solution, it also includes a liquid cooling jacket for the casing, achieving dual heat dissipation through convection and conduction. The liquid cooling jacket includes an inner sleeve and an outer sleeve. The inner sleeve is provided with a circulating water channel and is fitted inside the outer sleeve. Water pipe connectors are fixedly connected to both ends of the circulating water channel on the outer sleeve. The water pipe connectors at both ends enable one inlet and one outlet. The coolant can be deionized water, ethylene glycol, or dielectric fluid.

[0009] As a further limitation of this technical solution, a set of second screws are fixedly connected to both ends of the inner sleeve, serving as both positioning pins and fasteners; end caps are provided at both ends of the outer sleeve, and one of the end caps is fixedly connected to the outer sleeve, with one side welded to the outer sleeve and the other side detachable, forming a "semi-open" maintenance window; the end cap is provided with a set of through holes, and a set of second screws matches a set of through holes.

[0010] As a further limitation of this technical solution, the inner sleeve is provided with inner positioning grooves at both ends, which are rectangular or trapezoidal grooves. The groove width is slightly larger than the diameter of the sealing ring by 0.1 mm to ensure a compression rate of 15-20%. The inner positioning grooves are matched with the sealing rings. The sealing rings are made of FFKM perfluoroether or EPDM ethylene propylene diene monomer, which are resistant to temperatures of 150-200℃ and resistant to ethylene glycol corrosion.

[0011] As a further limitation of this technical solution, the end cap is provided with an outer positioning groove corresponding to the sealing ring. The groove edge is chamfered at 0.3×45° to prevent shearing of the sealing ring.

[0012] As a further limitation of this technical solution, the shell, the inner sleeve and the outer sleeve are made of T800 carbon fiber / epoxy resin.

[0013] As a further limitation of this technical solution, the shell is fixedly connected to a supporting ring, achieving a combination of lightweight, high strength, thermal conductivity, and insulation.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are:

[0015] This invention employs a T800 carbon fiber composite shell and high thermal conductivity heat dissipation pipes to rapidly and evenly distribute heat from the winding hotspots to the outer surface. The overall weight is reduced by 30-40% compared to aluminum alloy solutions.

[0016] This invention employs heat dissipation fins and a spiral water channel liquid cooling jacket to facilitate heat dissipation.

[0017] This utility model adopts a "semi-open" maintenance window and a quick-release structure for the end cover and screw, which facilitates the assembly of the equipment. Attached Figure Description

[0018] Figure 1 This is an exploded view of the present invention.

[0019] Figure 2 This is a partial exploded view of the present invention.

[0020] Figure 3 This is a partial three-dimensional structural diagram of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0022] 6. Connecting rod, 7. Heat dissipation fins, 8. Heat dissipation pipe, 9. Housing, 10. Outer positioning groove, 11. Inner sleeve, 12. Circulating water channel, 13. Second screw, 14. Inner positioning groove, 15. Sealing ring, 16. Outer sleeve, 17. End cap, 18. Perforation, 19. Water pipe connector, 10. Outer positioning groove. Detailed Implementation

[0023] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0024] Example 1: This utility model includes: a housing 8, which serves as the outer frame of the motor stator and directly absorbs the heat from copper and iron losses of the windings and magnets; a set of heat dissipation pipes 7 are installed, which are arranged in the air gap of the motor and use Φ1.5mm heat pipes to quickly dissipate the heat from the windings using phase change heat transfer; the heat is quickly dissipated to the heat dissipation fins 6 away from the motor body to reduce heat backflow; each of the heat dissipation pipes 7 is fixedly connected to the heat dissipation fins 6; a mounting ring 1 is fixedly connected to a set of mounting seats 2; two sets of connecting rods 4, each of the two ends of the connecting rod 4 is fixedly connected to a first screw 3, and each first screw 3 passes through the corresponding mounting seat 2 and is connected to a nut.

[0025] The housing 8 is fixedly connected to the supporting ring 9, achieving a combination of lightweight, high strength, thermal conductivity, and insulation.

[0026] Example 2: This example further elaborates on Example 1, and also includes a liquid cooling jacket for the casing, achieving dual heat dissipation through convection and conduction. The liquid cooling jacket includes an inner sleeve 10 and an outer sleeve 15. The inner sleeve 10 is provided with a circulating water channel 11, and the inner sleeve 10 is fitted inside the outer sleeve 15. The outer sleeve 15 is fixedly connected to water pipe connectors 18 at both ends corresponding to the circulating water channel 11. The water pipe connectors 18 at both ends allow for one inlet and one outlet, and the coolant can be deionized water, ethylene glycol, or dielectric fluid.

[0027] The inner sleeve 10 is fixedly connected to a set of second screws 12 at both ends, serving as both a positioning pin and a fastener; the outer sleeve 15 is provided with end caps 16 at both ends, and one of the end caps 16 is fixedly connected to the outer sleeve 15, with one side welded to the outer sleeve 15 and the other side detachable, forming a "semi-open" maintenance window; the end cap 16 is provided with a set of through holes 17, and a set of second screws 12 are matched with a set of through holes 17.

[0028] The inner sleeve 10 has inner positioning grooves 13 at both ends, which are rectangular or trapezoidal, with the groove width slightly larger than the diameter of the sealing ring by 0.1 mm to ensure a compression rate of 15-20%. The inner positioning grooves 13 are matched with the sealing ring 14. The sealing ring 14 is made of FFKM perfluoroether or EPDM ethylene propylene diene monomer, which is resistant to temperature of 150-200℃ and resistant to ethylene glycol corrosion.

[0029] The end cap 16 is provided with an outer positioning groove 19 corresponding to the sealing ring 14. The groove edge is chamfered at 0.3×45° to prevent shearing of the sealing ring.

[0030] The shell 8, the inner sleeve 10, and the outer sleeve 15 are made of T800 carbon fiber / epoxy resin.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat dissipation structure for a hollow cup servo motor, characterized in that, include: The housing (8) is equipped with a set of heat dissipation pipes (7), and each heat dissipation pipe (7) is fixedly connected to a heat dissipation fin (6). Mounting ring (1) is fixedly connected to a set of mounting bases (2); Two sets of connecting rods (4), each of the two ends of the connecting rod (4) is fixedly connected to a first screw (3), and each of the first screws (3) passes through the corresponding mounting base (2) and is threaded to a nut; It also includes a housing liquid cooling jacket, which includes an inner sleeve (10) and an outer sleeve (15). The inner sleeve (10) is provided with a circulating water channel (11). The inner sleeve (10) is fitted inside the outer sleeve (15). The outer sleeve (15) is fixedly connected to water pipe joints (18) at both ends of the circulating water channel (11).

2. The heat dissipation structure for a hollow cup servo motor according to claim 1, characterized in that: The inner sleeve (10) is fixedly connected to a set of second screws (12) at both ends. The outer sleeve (15) is provided with end caps (16) at both ends. The outer sleeve (15) is fixedly connected to one of the end caps (16). The end cap (16) is provided with a set of through holes (17). The set of second screws (12) matches the set of through holes (17).

3. The heat dissipation structure for a hollow cup servo motor according to claim 2, characterized in that: The inner sleeve (10) has an inner positioning groove (13) at both ends, and the inner positioning groove (13) matches the sealing ring (14).

4. The heat dissipation structure for a hollow cup servo motor according to claim 3, characterized in that: The end cap (16) is provided with an outer positioning groove (19) corresponding to the sealing ring (14).

5. The heat dissipation structure for a hollow cup servo motor according to claim 1, characterized in that: The shell (8), the inner sleeve (10) and the outer sleeve (15) are made of T800 carbon fiber / epoxy resin.

6. The heat dissipation structure for a hollow cup servo motor according to claim 1, characterized in that: The housing (8) is fixedly connected to the support ring (9).

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