Motor main shaft stator composite cooling structure
By designing components such as butterfly-type wiring notches, spiral grooves and heat dissipation plates on the motor spindle stator, the problem of poor heat dissipation in the cooling structure of the traditional motor spindle stator is solved, and more efficient heat dissipation and stability are achieved.
Patent Information
- Application Number
- CN202422727934.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The cooling structure of the traditional motor spindle stator has poor heat dissipation and cooling effect when outputting low speed and high torque.
The composite cooling structure is adopted, including butterfly-type wiring notches, spiral circumferential and radial grooves, ventilation grooves, clamping notches, heat dissipation plates and isolation pads. The heat in and outside the stator is uniformly transferred through the heat dissipation plate, and the heat dissipation fan of the motor housing is used to accelerate the flow of air.
The cooling effect and stability of the motor spindle stator is improved, the temperature uniformity of the inside and outside of the stator is ensured, and the heat dissipation efficiency is enhanced.
Smart Images
Figure CN223261406U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a motor main shaft stator composite cooling structure. Background Art
[0002] The stator is a crucial component of a motor, typically located in the stationary portion of the motor, opposite the rotating rotor. The stator's primary function is to provide a magnetic field that interacts with the current in the rotor, generating a rotational torque that drives the motor.
[0003] The composite cooling structure of the motor's main shaft stator is designed to improve cooling efficiency during operation. This is especially true at low speeds and high torque outputs, where the stator coils generate increased heat, necessitating a more efficient cooling method. This is typically achieved by providing cooling grooves and channels along the stator's outer diameter. These grooves are spirally arranged along the stator's outer diameter, while cooling structures are added to the ends of the stator coils to accelerate heat dissipation.
[0004] The traditional design effectively increases the cooling area by providing dual cooling through the provision of outer radial cooling grooves and end face cooling channels in the stator coil. Although this method can increase the heat dissipation rate to a certain extent, its heat dissipation effect is relatively limited in actual use. Therefore, a composite cooling structure for the motor spindle stator is proposed. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the utility model provides a motor main shaft stator composite cooling structure, which has the advantages of good cooling effect and high stability, and solves the problem of poor heat dissipation and cooling effect of the traditional stator composite cooling structure.
[0006] In order to achieve the above-mentioned purpose of good cooling effect and high stability, the utility model provides the following technical solution: a motor main shaft stator composite cooling structure, including several stators, a heat dissipation component arranged on the side of the stator, and a rotating component arranged inside the stator.
[0007] Furthermore, the heat dissipation assembly includes a wiring slot opened on the side of the stator, a circumferential slot and a radial slot starting from the inner wall of the stator, a ventilation slot opened on the outside of the stator, a locking slot opened on the surface of the stator, a heat dissipation plate movably connected to the inside of the locking slot, an isolation pad fixedly installed on the outside of the middle part of the heat dissipation plate, a plurality of ventilation holes opened on the side of the middle part of the heat dissipation plate, and a heat dissipation slot opened on the bottom surface of the heat dissipation plate.
[0008] Furthermore, the wiring slot is a butterfly-shaped structure, and the positioning slot vertically passes through the upper and lower inner side walls of the wiring slot and extends laterally to the side surface of one end of the stator.
[0009] Furthermore, the circumferential grooves are evenly arranged on the inner side wall of the stator in a spiral structure, and both ends of the circumferential grooves and the radial grooves extend to both end side walls of the stator.
[0010] Furthermore, a connecting slot is provided on one side opposite to the stator, and a connecting rod is inserted into the connecting slot to fix the two stators.
[0011] Furthermore, the heat dissipation plate is an I-shaped structure, the middle part of the heat dissipation plate is embedded in the interior of the positioning slot and is slidably connected to the inner wall of the positioning slot, and the upper and lower sides of the isolation pad are slidably connected to the upper and lower inner walls of the positioning slot.
[0012] Furthermore, the heat dissipation grooves are evenly distributed on the upper and lower surfaces of the heat dissipation plate bottom plate, and the grooves located on the top surface of the heat dissipation plate bottom plate transversely penetrate the two side walls of the heat dissipation plate.
[0013] Furthermore, the rotating assembly includes a rotating shaft arranged inside the stator, a rotor fixedly mounted on the outside of the rotating shaft, a guide groove opened on the outside of the rotor, and a terminal block fixedly mounted on the rotating shaft.
[0014] Compared with the prior art, the present invention provides a motor main shaft stator composite cooling structure, which has the following beneficial effects:
[0015] 1. The motor spindle stator composite cooling structure is constructed by inserting the connecting rod connecting the stator into the connecting slot, and then embedding the heat sink into the stator along the positioning slot. At this time, the isolation pad in the middle of the heat sink is embedded into the wiring slot along the positioning slot, dividing the wiring slot into two parts, and then nesting the connecting slot of the other stator on the outside of the connecting rod. After completing the assembly of the two stators, use cables to pass through the wiring slots of the two stators in turn to wrap the two stators together to form an integral structure.
[0016] 2. The motor spindle stator composite cooling structure is formed by embedding the stator into the inside of the motor housing and fixing it, and then installing the rotating shaft to the motor housing. When the stator is energized, the cables on the outside generate heat. Since the heat sink runs through the inside and outside of the stator, when the temperatures on the inside and outside of the stator are inconsistent, the heat will be transferred from the relatively higher side to the relatively lower side through the heat sink. At the same time, the magnetic field formed by the stator cable drives the rotor to rotate. The cooling fan installed inside the motor housing drives the air inside the motor housing to flow rapidly, thereby solving the problem of poor heat dissipation and cooling effect of the traditional stator composite cooling structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional diagram of the utility model;
[0018] Figure 2 This is a three-dimensional diagram of the stator of the utility model;
[0019] Figure 3 This is a three-dimensional diagram of the heat dissipation plate of the present invention.
[0020] In the figure: 1. Stator; 11. Connection slot; 2. Heat dissipation assembly; 21. Wiring slot; 22. Circumferential slot; 23. Radial slot; 24. Ventilation slot; 25. Positioning slot; 26. Heat dissipation plate; 27. Isolation pad; 28. Ventilation hole; 29. Heat dissipation slot; 3. Rotating assembly; 31. Shaft; 32. Rotor; 33. Guide groove; 34. Terminal block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] See also Figures 1 to 3 In this embodiment, a motor main shaft stator composite cooling structure includes a plurality of stators 1, a heat dissipation component 2 arranged on the side of the stator, and a rotating component 3 arranged inside the stator 1.
[0023] In this embodiment, the heat dissipation assembly 2 includes a wiring slot 21 opened on the side of the stator 1, a circumferential slot 22 and a radial slot 23 starting from the inner wall of the stator 1, a ventilation slot 24 opened on the outer side of the stator 1, a locking slot 25 opened on the surface of the stator 1, a heat dissipation plate 26 movably connected to the inside of the locking slot 25, an isolation pad 27 fixedly installed on the outer side of the middle part of the heat dissipation plate 26, a plurality of ventilation holes 28 opened on the side of the middle part of the heat dissipation plate 26, and a heat dissipation slot 29 opened on the bottom surface of the heat dissipation plate 26.
[0024] The wiring slots 21 are provided to bundle and fix the two stators 1 to form a stable structure. The circumferential slots 22 and radial slots 23 form a designated flow path for a portion of air inside the motor, which takes away the heat from the stator surface and improves the cooling and heat dissipation rate inside the stator.
[0025] In this embodiment, the wiring slot 21 is a butterfly-shaped structure, and the locking slot 25 vertically passes through the upper and lower inner side walls of the wiring slot 21 and extends laterally to the side surface of one end of the stator 1.
[0026] A butterfly-shaped routing slot 21 is provided for routing, and a locking slot 25 is provided for locking the heat sink 26, thereby stably fixing the heat sink 26 inside the stator 1, forming a heat-conducting structure, and conducting the heat inside the stator to the outside of the stator, thereby avoiding asynchronization of the temperature difference between the inside and outside of the stator.
[0027] In this embodiment, the circumferential grooves 22 are evenly arranged on the inner sidewall of the stator 1 in a spiral structure, and both ends of the circumferential grooves 22 and the radial grooves 23 extend to both end sidewalls of the stator 1 .
[0028] In this embodiment, connecting slots 11 are formed on opposite sides of the stator 1 , and connecting rods are inserted into the connecting slots 11 to fix the two stators 1 together.
[0029] In this embodiment, the heat dissipation plate 26 is an I-shaped structure, the middle part of the heat dissipation plate 26 is embedded in the interior of the locking slot 25 and is slidably connected to the inner wall of the locking slot 25, and the upper and lower sides of the isolation pad 27 are slidably connected to the upper and lower inner walls of the locking slot 25.
[0030] The heat dissipation plate 26 with an I-shaped structure transfers the heat inside the stator 1 to the outside of the stator 1, so that the temperatures inside and outside the stator 1 are kept consistent to the greatest extent, avoiding abnormal temperature on one side, thereby improving the heat dissipation efficiency.
[0031] It should be noted that while the stator 1 and the motor housing are fixedly installed, a certain space is left between the outer side of the stator 1 and the motor housing to cooperate with the cooling fan and other structures of the motor housing for heat dissipation.
[0032] In this embodiment, the heat dissipation slots 29 are evenly distributed on the upper and lower surfaces of the bottom plate of the heat dissipation plate 26 , and the slots on the top surface of the bottom plate of the heat dissipation plate 26 transversely penetrate the two side walls of the heat dissipation plate 26 .
[0033] In this embodiment, the rotating assembly 3 includes a rotating shaft 31 disposed inside the stator 1 , a rotor 32 fixedly mounted on the outside of the rotating shaft 31 , a guide groove 33 provided on the outside of the rotor 32 , and a terminal block 34 fixedly mounted on the rotating shaft 31 .
[0034] It should be noted that the rotating shaft 31 is rotatably connected to the motor housing, and the stator 1 is fixedly installed inside the motor housing. The two are connected to the motor housing to form a stable motor structure. A heat dissipation blade is provided on the outside of one end of the rotating shaft 31, so that when the rotating shaft 31 and the heat dissipation blade rotate inside the motor housing, a heat dissipation fan structure can be formed. The structure of the heat dissipation blade is not drawn in the accompanying drawings.
[0035] The working principle of the above embodiment is:
[0036] By inserting the connecting rod connecting the stator 1 into the inside of the connecting slot 11, and then embedding the heat sink 26 into the inside of the stator 1 along the locking slot 25, the isolation pad 27 in the middle of the heat sink 26 is embedded into the inside of the wiring slot 21 along the locking slot 25, dividing the wiring slot 21 into two parts, and then nesting the connecting slot 11 of the other stator 1 on the outside of the connecting rod. After completing the assembly of the two stators 1, use cables to pass through the wiring slots 21 of the two stators 1 in turn to wrap the two stators 1 to form an integral structure.
[0037] In addition, the stator 1 is embedded in the interior of the motor housing and fixedly installed, and then the rotating shaft 31 is installed to the motor housing to form a motor structure. After the stator 1 is energized, the cables on the outside generate heat. Since the heat sink 26 runs through the inside and outside of the stator 1, when the temperatures on the inside and outside of the stator 1 are inconsistent, the heat will be transferred from the relatively higher side to the relatively lower side through the heat sink 26. At the same time, the magnetic field formed by the stator 1 cable drives the rotor 32 to rotate, and the cooling fan arranged inside the motor housing drives the air inside the motor housing to flow rapidly, thereby solving the problem of poor heat dissipation and cooling effect of the traditional stator composite cooling structure.
[0038] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.
[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A motor main shaft stator composite cooling structure, characterized by: It comprises a plurality of stators (1), a heat dissipation assembly (2) arranged on the side of the stator, and a rotating assembly (3) arranged inside the stator (1); The heat dissipation assembly (2) comprises a wiring slot (21) provided on the side of the stator (1), a circumferential slot (22) and a radial slot (23) starting from the inner wall of the stator (1), a ventilation slot (24) provided on the outer side of the stator (1), a positioning slot (25) provided on the surface of the stator (1), a heat dissipation plate (26) movably connected to the inside of the positioning slot (25), an isolation pad (27) fixedly mounted on the outer side of the middle of the heat dissipation plate (26), a plurality of ventilation holes (28) provided on the side of the middle of the heat dissipation plate (26), and a heat dissipation slot (29) provided on the bottom surface of the heat dissipation plate (26).
2. The motor main shaft stator composite cooling structure according to claim 1, characterized in that: The rotating assembly (3) comprises a rotating shaft (31) arranged inside the stator (1), a rotor (32) fixedly mounted on the outside of the rotating shaft (31), a guide groove (33) provided on the outside of the rotor (32), and a terminal block (34) fixedly mounted on the rotating shaft (31).
3. The motor main shaft stator composite cooling structure according to claim 1, characterized in that: The wiring slot (21) is a butterfly-shaped structure, and the positioning slot (25) vertically penetrates the upper and lower inner side walls of the wiring slot (21) and extends laterally to the side surface of one end of the stator (1).
4. The motor main shaft stator composite cooling structure according to claim 1, characterized in that: The circumferential groove (22) is evenly arranged on the inner side wall of the stator (1) with the spiral structure, and both ends of the circumferential groove (22) and the radial groove (23) extend to the side walls of both ends of the stator (1).
5. The motor main shaft stator composite cooling structure according to claim 1, characterized in that: A connecting slot (11) is provided on one side opposite to the stator (1), and a connecting rod is inserted into the connecting slot (11) to fix the two stators (1) in place.
6. The motor main shaft stator composite cooling structure according to claim 1, characterized in that: The heat dissipation plate (26) is an I-shaped structure. The middle portion of the heat dissipation plate (26) is embedded in the interior of the positioning slot (25) and is slidably connected to the inner side wall of the positioning slot (25). The upper and lower sides of the isolation pad (27) are slidably connected to the upper and lower inner side walls of the positioning slot (25).
7. The motor main shaft stator composite cooling structure according to claim 1, characterized in that: The heat dissipation grooves (29) are evenly distributed on the upper and lower surfaces of the bottom plate of the heat dissipation plate (26), and the grooves located on the top surface of the bottom plate of the heat dissipation plate (26) horizontally penetrate the two side walls of the heat dissipation plate (26).