A magnetic gear pump motor without an internal rotor

Abstract

This utility model discloses a magnetic gear pump motor without an internal rotor, specifically relating to the field of motor technology. It includes a rotor body with a gear pump connection hole on the front side, which penetrates the rotor body. A drive disc is detachably snap-fitted onto the rear side of the rotor body. A motor rear cover is fitted behind the rotor body, with a mounting hole on one side. A waterproof connector is snap-fitted into the mounting hole. This utility model employs a rotorless design, significantly reducing motor weight and volume, resulting in a compact structure and convenient installation and use. This design also eliminates iron loss, improving motor efficiency and reducing energy consumption. Its novel ironless winding, specially braided and fixed, exhibits excellent strength and stability, directly fixed to the inner wall of the outer casing, reducing intermediate losses and improving magnetic field conduction efficiency, thus enhancing motor performance.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically, to a magnetic gear pump motor without an internal rotor. Background Technology

[0002] In traditional magnetic gear pump motors, the inner rotor body is an important component, mainly serving to guide magnetism and support the windings.

[0003] A search revealed that the patent with publication number CN216452938U has been published.

[0004] The inner rotor increases the weight and size of the motor, making the overall structure less compact and unsuitable for applications with strict space requirements. On the other hand, the inner rotor generates iron losses during motor operation, reducing motor efficiency, and also produces noise and vibration, affecting the motor's operational stability and service life.

[0005] Therefore, a magnetic gear pump motor without an internal rotor is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a magnetic gear pump motor without an internal rotor to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a magnetic gear pump motor without an internal rotor, comprising a rotor body, a gear pump connection hole on the front side of the rotor body, the connection hole penetrating the rotor body, a drive disk being detachably snap-fitted onto the rear side of the rotor body, a motor rear cover being fitted behind the rotor body, a mounting hole being provided on one side of the motor rear cover, a waterproof connector being snap-fitted into the mounting hole, and a detachable coupling seat being fitted onto the outer side of the rotor body, a sealing ring groove being provided on the front side of the coupling seat, and a third sealing ring being provided inside the sealing ring groove.

[0008] Preferably, a first sealing ring is provided on the rear side of the rotor body, and a second sealing ring is also provided on the front side of the rotor body in a detachable manner.

[0009] Preferably, the waterproof connector passes through the mounting hole opened on the motor rear cover. The size of the mounting hole is adapted to the outer diameter of the waterproof connector. After passing through the mounting hole, the waterproof connector does not stop extending, but continues to penetrate deeper into the motor rear cover.

[0010] Preferably, when assembling the magnetic gear pump motor, the coupling seat is placed at the front of the rotor body, and then the coupling seat is put back into the rotor body along the axial direction. During this process, the coupling seat and the rotor body cooperate with each other, and the coupling seat moves back continuously. When it is put into the appropriate position, the rear side of the coupling seat will mate with the front side of the motor rear cover.

[0011] Preferably, the front side of the coupling seat and the rear side of the motor rear cover are provided with positioning screw holes, and the distance between adjacent positioning screw holes is completely equal.

[0012] Preferably, a stand is placed at the bottom of the coupling seat, and a fastening screw hole is opened at the top of the stand. The diameter of the fastening screw hole is adapted to the fastening bolt to be used later. During the installation process, the stand is placed in a suitable position, and then the fastening bolt is screwed into the fastening screw hole. At this time, the fastening bolt continues to extend into the interior of the coupling seat.

[0013] Preferably, positioning holes are provided on the left and right sides of the bracket, and the positions of the two positioning holes correspond to the positioning holes provided on the bearing plate.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with existing technologies, this magnetic gear pump motor without an inner rotor has a larger weight due to the inner rotor body being made of stacked silicon steel sheets. This directly leads to an increase in the overall weight of the motor. In some applications where lightweight equipment is required, such as aerospace and portable devices, the use of traditional motors is greatly limited. At the same time, the inner rotor body occupies a certain amount of space, making it difficult to further reduce the size of the motor, which is not conducive to installation and use in compact environments.

[0016] Compared with existing technologies, this magnetic gear pump motor without an internal rotor generates iron losses through the internal rotor body, including eddy current losses and hysteresis losses. This not only reduces the energy conversion efficiency of the motor and increases energy consumption, but also causes the motor to heat up and affects its service life. In addition, the presence of the internal rotor body will also cause additional noise and vibration, which will have an adverse effect on the motor's operational stability and quietness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model.

[0019] Figure 3 This is a front view structural diagram of the rotor body of this utility model.

[0020] Figure 4 This is a rear view structural diagram of the rotor body of this utility model.

[0021] The attached diagram is labeled as follows: 1. Rotor body; 2. Drive disc; 3. First sealing ring; 4. Second sealing ring; 5. Motor rear cover; 6. Mounting hole; 7. Waterproof connector; 8. Connecting seat; 9. Sealing ring groove; 10. Third sealing ring; 11. Positioning screw hole; 12. Leg; 13. Fastening screw hole; 14. Fastening bolt; 15. Positioning hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] As attached Figures 1 to 4 The magnetic gear pump motor without an internal rotor shown includes a rotor body 1. A gear pump connection hole is provided on the front side of the rotor body 1, which passes through the rotor body 1. A drive disk 2 is installed on the rear side of the rotor body 1 by a detachable snap-fit ​​method. A motor rear cover 5 is fitted behind the rotor body 1. A mounting hole 6 is provided on one side of the motor rear cover 5. A waterproof connector 7 is snap-fitted inside the mounting hole 6. In addition, a coupling seat 8 is detachably fitted on the outer side of the rotor body 1. A sealing ring groove 9 is provided on the front side of the coupling seat 8. A third sealing ring 10 is provided inside the sealing ring groove 9.

[0025] The rotor body 1 features a through-hole for connecting to a gear pump on its front side, facilitating efficient connection and ensuring stable power transmission. The drive disc 2 is mounted on the rear side using a detachable snap-fit ​​mechanism, making installation, removal, and replacement easy and convenient, thus aiding in subsequent maintenance. A motor rear cover 5 is detachably fitted behind the rotor body 1, with a waterproof connector 7 snapped into one side mounting hole 6. This protects the internal structure of the motor and effectively prevents moisture infiltration. A detachable coupling seat 8 is fitted onto the outer side of the rotor body 1. A third sealing ring 10 is located within the sealing ring groove 9 on the front side of the coupling seat 8, enhancing the sealing at connections with other components. This simplifies motor installation and maintenance, while also improving sealing and protection performance, ensuring stable and reliable motor operation under various working conditions.

[0026] Example 2

[0027] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0028] As a preferred embodiment, a first sealing ring 3 is provided on the rear side of the rotor body 1, which facilitates quick replacement when the first sealing ring 3 is worn or aged, ensuring the sealing effect. At the same time, a second sealing ring 4 is also provided on the front side of the rotor body 1 through a detachable installation method. The second sealing ring 4 can effectively prevent the medium leakage that may occur on the front side of the motor, and its detachable feature facilitates daily maintenance and repair, providing a reliable sealing guarantee for the stable operation of the motor.

[0029] In a preferred embodiment, the waterproof connector 7 passes through the mounting hole 6 on the motor rear cover 5. The size of the mounting hole 6 is adapted to the outer diameter of the waterproof connector 7. After passing through the mounting hole 6, the waterproof connector 7 does not stop extending, but continues to penetrate deeper into the motor rear cover 5. This not only allows the wiring to be better connected to the motor, but also forms a reliable isolation barrier inside and outside the motor rear cover 5 through its special sealing structure, effectively preventing moisture, dust and other impurities from entering the motor from the mounting hole 6, thus ensuring the stable operation of the motor.

[0030] In a preferred embodiment, when assembling the magnetic gear pump motor, the coupling seat 8 is placed at the front of the rotor body 1, and then the coupling seat 8 is inserted backward along the axial direction of the rotor body 1. During this process, it is necessary to ensure that the coupling seat 8 and the rotor body 1 fit together without jamming. As the coupling seat 8 moves backward, when it is inserted into the appropriate position, the rear side of the coupling seat 8 will mate with the front side of the motor rear cover 5, laying the foundation for the subsequent formation of a stable and reliable overall motor structure.

[0031] As a preferred embodiment, in order to achieve a precise and stable connection between the coupling seat 8 and the motor rear cover 5, positioning screw holes 11 are provided on the front side of the coupling seat 8 and the rear side of the motor rear cover 5. The distance between adjacent positioning screw holes 11 is completely equal. When bolts are used for connection and fixation, it can be ensured that the coupling seat 8 and the motor rear cover 5 are subjected to uniform force, effectively avoiding connection loosening or structural damage caused by local stress concentration, thereby improving the stability and reliability of the entire motor assembly.

[0032] In a preferred embodiment, a stand 12 is placed at the bottom of the coupling seat 8, and a fastening screw hole 13 is provided at the top of the stand 12. The diameter of the fastening screw hole 13 is adapted to the fastening bolt 14 to be used later. During the installation process, the stand 12 is first placed in a suitable position, and then the fastening bolt 14 is screwed into the fastening screw hole 13. At this time, the fastening bolt 14 will pass through the stand 12. As it is continuously tightened, the fastening bolt 14 continues to extend into the interior of the coupling seat 8. Through the engagement of the threads, the stand 12 and the coupling seat 8 are firmly connected together, ensuring the stability of the motor placement.

[0033] In a preferred embodiment, positioning holes 15 are provided on the left and right sides of the stand 12. The positions of the two positioning holes 15 correspond to the positioning pins provided on the support plate. When the stand 12 is installed in the designated position, the positioning pins on the support plate will be inserted into the positioning holes 15 on the left and right sides of the stand 12. This cooperation method can effectively limit the movement of the stand 12 in the horizontal direction, thereby providing a reliable support foundation for the stable operation of the motor equipment.

[0034] The working process of this utility model is as follows: In use, firstly, the first sealing ring 3 is detachably installed on the rear side of the rotor body 1, and the second sealing ring 4 is detachably installed on the front side of the rotor body 1. Then, the motor body is assembled, and the drive plate 2 is detachably snapped onto the rear side of the rotor body 1. After that, the motor rear cover 5 is detachably fitted onto the rear of the rotor body 1, and the waterproof connector 7 is snapped into the mounting hole 6 with the appropriate outer diameter on one side of the motor rear cover 5, and is made to penetrate into the motor rear cover 5. Then, the connecting seat 8 is placed on the front side of the rotor body 1, along the rotor... The main body 1 is smoothly and slowly inserted backwards until it is in the appropriate position so that the rear side of the coupling seat 8 aligns with the front side of the motor rear cover 5. Positioning is achieved using the equally spaced positioning screw holes 11 on the coupling seat 8 and the motor rear cover 5. Finally, the stand 12 is detachably placed at the bottom of the coupling seat 8, and the fastening bolts 14 are screwed into the matching fastening screw holes 13 on the top of the stand 12 and inserted into the interior of the coupling seat 8 for fixation. At the same time, the positioning holes 15 on the left and right sides of the stand 12 are engaged with the positioning pins on the bearing plate for positioning. The above describes the working principle of this type of magnetic gear pump motor without an internal rotor.

Claims

1. A magnetic gear pump motor without an internal rotor, comprising a rotor body (1), characterized in that: The rotor body (1) has a gear pump connection hole on its front side, which penetrates the rotor body (1). The drive disk (2) is installed on the rear side of the rotor body (1) in a detachable snap-fit ​​manner. The rear cover of the rotor body (1) is fitted with a motor rear cover (5). The motor rear cover (5) has an installation hole (6) on one side. A waterproof connector (7) is snapped into the installation hole (6). In addition, a connecting seat (8) is detachably fitted on the outer side of the rotor body (1). A sealing ring groove (9) is provided on the front side of the connecting seat (8). A third sealing ring (10) is provided inside the sealing ring groove (9).

2. The magnetic gear pump motor without an internal rotor according to claim 1, characterized in that: A first sealing ring (3) is provided on the rear side of the rotor body (1), and a second sealing ring (4) is also provided on the front side of the rotor body (1) in a detachable manner.

3. A magnetic gear pump motor without an internal rotor according to claim 2, characterized in that: The waterproof connector (7) passes through the mounting hole (6) on the motor rear cover (5). The size of the mounting hole (6) is adapted to the outer diameter of the waterproof connector (7). After passing through the mounting hole (6), the waterproof connector (7) does not stop extending, but continues to go deeper into the motor rear cover (5).

4. A magnetic gear pump motor without an internal rotor according to claim 2, characterized in that: When assembling the magnetic gear pump motor, the coupling seat (8) is placed on the front side of the rotor body (1), and then the coupling seat (8) is put back into the rotor body (1) along the axial direction. During this process, the coupling seat (8) and the rotor body (1) cooperate with each other. The coupling seat (8) moves back continuously. When it is put into the appropriate position, the rear side of the coupling seat (8) will mate with the front side of the motor rear cover (5).

5. A magnetic gear pump motor without an internal rotor according to claim 4, characterized in that: The front side of the coupling seat (8) and the rear side of the motor rear cover (5) are provided with positioning screw holes (11), and the spacing between adjacent positioning screw holes (11) is equal.

6. A magnetic gear pump motor without an internal rotor according to claim 4, characterized in that: The bottom of the coupling seat (8) is provided with a stand (12), and the top of the stand (12) is provided with a fastening screw hole (13). The diameter of the fastening screw hole (13) is adapted to the fastening bolt (14) to be used later. During the installation process, the stand (12) is placed in a suitable position, and then the fastening bolt (14) is screwed into the fastening screw hole (13). At this time, the fastening bolt (14) continues to extend into the interior of the coupling seat (8).

7. A magnetic gear pump motor without an internal rotor according to claim 6, characterized in that: The left and right sides of the bracket (12) are respectively provided with positioning holes (15), and the positions of the two positioning holes (15) correspond to the positioning pins provided on the bearing plate.

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