High-strength hollow cup coil structure

Abstract

The utility model relates to the technical field of motor coils, and discloses a high-strength hollow cup coil structure which comprises a stator and a high-strength hollow cup body, a mounting cover is fixedly mounted on the left side of the stator through bolts, a bearing is fixedly mounted on one side of the stator, a first rotating shaft is arranged on the inner side of the stator, and a second rotating shaft is arranged on the outer side of the stator. A flange is fixedly installed on the left side of the stator, a clamping groove is formed in the right side of the stator, a positioning groove is formed in the right side of the stator, an end cover is arranged on the inner side of the positioning groove, and an installation frame is fixedly installed on one side of the end cover. According to the high-strength hollow cup coil structure, the space can be more effectively utilized through the spiral ascending coil assembly, more coil length can be provided in the limited space, and then the current density and the magnetic flux are increased, so that the power density of a motor can be improved, the heat dissipation efficiency can be improved, heat transfer and heat dissipation can be promoted, and the service life of the motor can be prolonged. And therefore, the temperature of the motor under high load can be reduced, and the practicability is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of motor coils, in particular to a high-strength hollow cup coil structure. Background Art

[0002] With the continuous improvement of technology, motors are often used in multiple field scenarios. There are various categories in the motor field, and the hollow cup is one of the essential parts of the motor. When a brushless hollow cup motor is in use, since the appearance of the hollow cup rotor is similar to a cup and is made of a permanent magnet, the rotation of the brushless hollow cup motor is controlled by the magnetic field generated by driving the stator coil of the brushless hollow cup motor through an electric current, thereby driving the rotation of the hollow cup rotor.

[0003] Chinese Utility Model Patent Publication No.: CN 220775498 U3, discloses: a stator coil structure of a brushless hollow cup motor. This stator coil structure of the brushless hollow cup motor can limit and fix the lead wire through the cooperation of a bidirectional screw and an adjusting plate, replacing the traditional method of injecting insulating colloid into the fixed groove to achieve potting and fixing of the lead wire, and solving the problem that some insulating colloid is prone to softening at high temperatures of the lead wire, resulting in poor potting and fixing and sealing effects or even failure. However, this stator coil structure of the brushless hollow cup motor does not design the coil structure, which easily makes the power density and heat dissipation efficiency of the motor relatively low, and is prone to damage the overall motor due to high temperature, with poor practicability. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a high-strength hollow cup coil structure, which can effectively solve the problems in the prior art that the coil structure is not designed, easily making the power density and heat dissipation efficiency of the motor relatively low, and being prone to damage the overall motor due to high temperature, with poor practicability, etc.

[0005] The technical solution adopted by the utility model is: a high-strength hollow cup coil structure, including a stator and a high-strength hollow cup body. An installation cover is fixedly installed on the left side of the stator through bolts. A bearing is fixedly installed on one side of the stator. A rotating shaft one is arranged inside the stator. A flange is fixedly installed on the left side of the stator. A clamping groove is opened on the right side of the stator. A positioning groove is opened on the right side of the stator. An end cover is arranged inside the positioning groove. An installation frame is fixedly installed on one side of the end cover. A brush holder is arranged on one side of the installation frame. An installation groove is opened on one side of the brush holder. A positioning hole is opened on one side of the brush holder. Clamping blocks are fixedly installed on both sides of the end cover. A permanent magnet is fixedly installed inside the high-strength hollow cup body. A coil group is arranged outside the permanent magnet. A connecting ring is arranged on one side of the permanent magnet.

[0006] Preferably, a second rotating shaft is arranged inside the stator. A flow straightener is fixedly installed on one side of the second rotating shaft, and the first rotating shaft and the second rotating shaft are fixedly installed.

[0007] Through the above technical solution, through the cooperation of the first rotating shaft and the second rotating shaft, possible looseness or vibration can be reduced, and better anti-twisting performance can be achieved. In combination with the flow straightener, the energy transmission efficiency can be improved and energy loss can be reduced.

[0008] Preferably, the end cover is adapted to the positioning groove, and the diameter of the end of the end cover extending out of the stator is larger than the diameter of the stator.

[0009] Through the above technical solution, through the cooperation of the end cover and the positioning groove, when installing the end cover, first make one end of the end cover snap into the positioning groove, which can make the two fit better, effectively improve the overall sealing performance, prevent dust, liquid or other impurities from invading the interior of the device, and thus improve the reliability and durability of the device.

[0010] Preferably, the clamping block and the clamping groove are installed by plugging, and there are two identical clamping blocks and clamping grooves.

[0011] Through the above technical solution, through the cooperation of the clamping block and the clamping groove, when installing the end cover, the clamping block can be first snapped into the clamping groove, which can play a role in quickly aligning, and this anti-misassembly design can prevent the end cover from being easily displaced during installation.

[0012] Preferably, the permanent magnet and the coil group are located inside the high-strength hollow cup body, and the high-strength hollow cup body is located inside the stator.

[0013] Through the above technical solution, through the cooperation of the permanent magnet and the coil group, when the permanent magnet is in use, it usually generates a magnetic field, and the coil group may be used to induce current, generate an electromagnetic field or convert mechanical energy into electrical energy to achieve normal operation. Moreover, the high-strength hollow cup body can not only concentrate the magnetic field but also play a role in protecting the coil group.

[0014] Preferably, the cross-section of the mounting bracket is in an "L" shape structure, and the mounting brackets correspond to the mounting grooves one by one.

[0015] Through the above technical solution, through the design of the mounting bracket, after the end cover is installed, the mounting bracket can be snapped into the brush holder, which can achieve the quick positioning and installation of the brush holder and reduce the workload of the staff.

[0016] Preferably, the coil group is in a spiral rising shape, and the coil group is adapted to the connecting ring.

[0017] Through the above technical solution, the spiral ascending coil group can make more effective use of space, provide more coil length in a limited space, thereby increasing the current density and magnetic flux, which helps to improve the power density of the motor, and can improve the heat dissipation efficiency, promote heat transfer and heat dissipation, and thus help to reduce the temperature of the motor under high load.

[0018] Compared with the prior art, the present utility model provides a high-strength hollow cup coil structure, which has the following beneficial effects:

[0019] 1. For this high-strength hollow cup coil structure, through the cooperation of the clamping block and the clamping groove, when installing the end cover, the clamping block can be first inserted into the clamping groove, which can play a role in quickly aligning positions. And this anti-mistake design can prevent the end cover from being easily displaced during installation. Through the design of the mounting frame, after the end cover is installed, the mounting frame can be inserted into the brush holder, which can realize the quick positioning and installation of the brush holder, reducing the workload of the staff;

[0020] 2. For this high-strength hollow cup coil structure, the spiral ascending coil group can make more effective use of space, provide more coil length in a limited space, thereby increasing the current density and magnetic flux, which helps to improve the power density of the motor, and can improve the heat dissipation efficiency, promote heat transfer and heat dissipation, and thus help to reduce the temperature of the motor under high load. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a split structural schematic of the present utility model Figure 1 ;

[0023] Figure 3 is a split structural schematic of the present utility model Figure 2 ;

[0024] Figure 4 is a mounting structure schematic diagram of the permanent magnet and the winding group of the present utility model Figure 1 ;

[0025] Figure 5 is a mounting structure schematic diagram of the permanent magnet and the winding group of the present utility model Figure 2 。

[0026] Wherein: 1. Stator; 2. Mounting cover; 3. Bearing; 4. First rotating shaft; 5. Flange; 6. Clamping groove; 7. Positioning groove; 8. End cover; 9. Mounting frame; 10. Brush holder; 11. Mounting groove; 12. Positioning hole; 13. Clamping block; 14. High-strength hollow cup body; 15. Permanent magnet; 16. Coil group; 17. Connecting ring; 18. Second rotating shaft; 19. Rectifier. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0028] Embodiment 1: As Figures 1-5 shown, a high-strength hollow cup coil structure provided by the present invention includes a stator 1 and a high-strength hollow cup body 14. An installation cover 2 is fixedly installed on the left side of the stator 1 through bolts. A bearing 3 is fixedly installed on one side of the stator 1. A rotating shaft 4 is arranged inside the stator 1. A flange 5 is fixedly installed on the left side of the stator 1. A card slot 6 is opened on the right side of the stator 1. A positioning slot 7 is opened on the right side of the stator 1. An end cover 8 is arranged inside the positioning slot 7. An installation frame 9 is fixedly installed on one side of the end cover 8. A brush holder 10 is arranged on one side of the installation frame 9. An installation slot 11 is opened on one side of the brush holder 10. A positioning hole 12 is opened on one side of the brush holder 10. Clamping blocks 13 are fixedly installed on both sides of the end cover 8. A permanent magnet 15 is fixedly installed inside the high-strength hollow cup body 14. A coil group 16 is arranged outside the permanent magnet 15. A connecting ring 17 is arranged on one side of the permanent magnet 15.

[0029] Specifically, a rotating shaft 18 is arranged inside the stator 1. A rectifier 19 is fixedly installed on one side of the rotating shaft 18. The rotating shaft 4 and the rotating shaft 18 are fixedly installed. The advantage is that through the cooperation of the rotating shaft 4 and the rotating shaft 18, possible looseness or vibration can be reduced, and it has better anti-twisting performance. And with the rectifier 19, the energy transmission efficiency can be improved and energy loss can be reduced.

[0030] Specifically, the end cover 8 is adapted to the positioning slot 7. The diameter of the end of the end cover 8 extending out of the stator 1 is greater than the diameter of the stator 1. The advantage is that through the cooperation of the end cover 8 and the positioning slot 7, when installing the end cover 8, first make one end of the end cover 8 snap into the positioning slot 7, which can make the two fit better, effectively improve the overall sealing performance, prevent dust, liquid or other impurities from invading the interior of the device, and thus improve the reliability and durability of the device.

[0031] Specifically, the clamping block 13 and the card slot 6 are installed by insertion. There are two identical clamping blocks 13 and card slots 6. The advantage is that through the cooperation of the clamping block 13 and the card slot 6, when installing the end cover 8, the clamping block 13 can be first snapped into the card slot 6, which can play a role in quickly aligning, and this anti-mistake design can avoid the displacement of the end cover 8 during installation.

[0032] Embodiment 2: As Figures 2-5As shown, as an improvement over the previous embodiment.

[0033] Specifically, the permanent magnet 15 and the coil group 16 are located inside the high-strength hollow cup body 14, and the high-strength hollow cup body 14 is located inside the stator 1. The advantage is that through the cooperation of the permanent magnet 15 and the coil group 16, when the permanent magnet 15 is in use, a magnetic field is usually generated, and the coil group 16 can be used to induce current, generate an electromagnetic field or convert mechanical energy into electrical energy to achieve normal operation. Moreover, the high-strength hollow cup body 14 can both concentrate the magnetic field and play a role in protecting the coil group 16.

[0034] Specifically, the cross-section of the mounting bracket 9 is in an "L" shape, and the mounting brackets 9 and the mounting grooves 11 are in one-to-one correspondence. The advantage is that through the design of the mounting bracket 9, after the end cover 8 is installed, the brush holder 10 can be quickly positioned and installed by snapping the mounting bracket 9 into the brush holder 10, reducing the workload of the staff.

[0035] Specifically, the coil group 16 is spirally rising, and the coil group 16 is adapted to the connecting ring 17. The advantage is that the spirally rising coil group 16 can make more effective use of space, can provide more coil length in a limited space, thereby increasing the current density and magnetic flux, which helps to improve the power density and efficiency of the motor, and can also improve the heat dissipation efficiency, promote heat transfer and heat dissipation, thus helping to reduce the temperature of the motor under high load.

[0036] Working principle: During use, through the cooperation of the first rotating shaft 4 and the second rotating shaft 18, it is possible to reduce possible looseness or vibration, and it has better anti-twisting properties. Combined with the flow straightener 19, it can improve the efficiency of energy transmission and reduce energy loss. Through the cooperation of the end cover 8 and the positioning groove 7, when installing the end cover 8, first make one end of the end cover 8 snap into the positioning groove 7, which can make the two fit better, effectively improve the overall sealing performance, prevent dust, liquid or other impurities from invading the interior of the equipment, thereby improving the reliability and durability of the equipment. Through the cooperation of the clamping block 13 and the clamping groove 6, when installing the end cover 8, the clamping block 13 can be first snapped into the clamping groove 6, which can play a role in rapid alignment, and this anti-fooling design can prevent the end cover 8 from being easily displaced during installation. Through the cooperation of the permanent magnet 15 and the coil group 16, when the permanent magnet 15 is in use, it usually generates a magnetic field, and the coil group 16 may be used to induce current, generate an electromagnetic field or convert mechanical energy into electrical energy to achieve normal operation. Moreover, the high-strength hollow cup body 14 can not only concentrate the magnetic field but also play a role in protecting the coil group 16. Through the design of the mounting bracket 9, after the end cover 8 is installed, the brush holder 10 can be quickly positioned and installed by snapping the mounting bracket 9 into the brush holder 10, reducing the workload of the staff. The coil group 16 arranged in a spiral ascending manner can make more effective use of space, provide more coil length in a limited space, thereby increasing the current density and magnetic flux, which helps to improve the power density and efficiency of the motor, and can also improve the heat dissipation efficiency, promote heat transfer and heat dissipation, thus helping to reduce the temperature of the motor under high load.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength hollow cup coil structure, comprising a stator (1) and a high-strength hollow cup body (14), characterized in that: The left side of the stator (1) is fixedly mounted with a mounting cover (2) by means of bolts, one side of the stator (1) is fixedly mounted with a bearing (3), the inner side of the stator (1) is provided with a rotating shaft (4), the left side of the stator (1) is fixedly mounted with a flange (5), the right side of the stator (1) is provided with a clamping groove (6), the right side of the stator (1) is provided with a positioning groove (7), the inner side of the positioning groove (7) is provided with an end cover (8), and one side of the end cover (8) is fixedly mounted with a mounting frame (9) A brush holder (10) is arranged on one side of the mounting frame (9), a mounting groove (11) is provided on one side of the brush holder (10), a positioning hole (12) is provided on one side of the brush holder (10), blocks (13) are fixedly installed on both sides of the end cover (8), a permanent magnet (15) is fixedly installed on the inner side of the high-strength hollow cup body (14), a coil group (16) is arranged on the outer side of the permanent magnet (15), and a connecting ring (17) is arranged on one side of the permanent magnet (15).

2. The high-strength hollow cup coil structure according to claim 1, characterized in that: A second rotating shaft (18) is arranged inside the stator (1), a rectifier (19) is fixedly mounted on one side of the second rotating shaft (18), and the first rotating shaft (4) and the second rotating shaft (18) are fixedly mounted.

3. The high-strength hollow cup coil structure according to claim 1, characterized in that: The end cover (8) is matched with the positioning groove (7), and the diameter of one end of the end cover (8) extending out of the stator (1) is larger than the diameter of the stator (1).

4. The high-strength hollow cup coil structure according to claim 1, characterized in that: The card block (13) and the card slot (6) are plug-in mounted, and two identical card blocks (13) and two identical card slots (6) are provided.

5. The high-strength hollow cup coil structure according to claim 1, characterized in that: The permanent magnet (15) and the coil group (16) are located inside the high-strength hollow cup body (14), and the high-strength hollow cup body (14) is located inside the stator (1).

6. The high-strength hollow cup coil structure according to claim 1, characterized in that: The cross section of the mounting frame (9) is in an "L"-shaped structure, and the mounting frame (9) corresponds one-to-one to the mounting groove (11).

7. The high-strength hollow cup coil structure according to claim 1, characterized in that: The coil group (16) rises in a spiral manner, and the coil group (16) is matched with the connecting ring (17).

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